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PK�vFZx��++dane.hnu�[���/* -*- c -*-
 * Copyright (C) 2012 KU Leuven
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of libdane.
 *
 * libdane is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

#ifndef GNUTLS_DANE_H
#define GNUTLS_DANE_H

#include <gnutls/gnutls.h>	/* for gnutls_datum_t */

/**
 * dane_cert_usage_t:
 * @DANE_CERT_USAGE_CA: CA constraint. The certificate/key
 *   presented must have signed the verified key.
 * @DANE_CERT_USAGE_EE: The key or the certificate of the end
 *   entity.
 * @DANE_CERT_USAGE_LOCAL_CA: The remote CA is local and possibly
 *   untrusted by the verifier.
 * @DANE_CERT_USAGE_LOCAL_EE: The remote end-entity key is local
 *   and possibly untrusted by the verifier (not signed by a CA).
 *
 * Enumeration of different certificate usage types.
 */
typedef enum dane_cert_usage_t {
	DANE_CERT_USAGE_CA = 0,
	DANE_CERT_USAGE_EE = 1,
	DANE_CERT_USAGE_LOCAL_CA = 2,
	DANE_CERT_USAGE_LOCAL_EE = 3
} dane_cert_usage_t;

/**
 * dane_cert_type_t:
 * @DANE_CERT_X509: An X.509 certificate.
 * @DANE_CERT_PK: A public key.
 *
 * Enumeration of different certificate types.
 */
typedef enum dane_cert_type_t {
	DANE_CERT_X509 = 0,
	DANE_CERT_PK = 1
} dane_cert_type_t;

/**
 * dane_match_type_t:
 * @DANE_MATCH_EXACT: The full content.
 * @DANE_MATCH_SHA2_256: A SHA-256 hash of the content.
 * @DANE_MATCH_SHA2_512: A SHA-512 hash of the content.
 *
 * Enumeration of different content matching types.
 */
typedef enum dane_match_type_t {
	DANE_MATCH_EXACT = 0,
	DANE_MATCH_SHA2_256 = 1,
	DANE_MATCH_SHA2_512 = 2
} dane_match_type_t;

/**
 * dane_query_status_t:
 * @DANE_QUERY_UNKNOWN: There was no query.
 * @DANE_QUERY_DNSSEC_VERIFIED: The query was verified using DNSSEC.
 * @DANE_QUERY_BOGUS: The query has wrong DNSSEC signature.
 * @DANE_QUERY_NO_DNSSEC: The query has no DNSSEC data.
 *
 * Enumeration of different certificate types.
 */
typedef enum dane_query_status_t {
	DANE_QUERY_UNKNOWN = 0,
	DANE_QUERY_DNSSEC_VERIFIED,
	DANE_QUERY_BOGUS,
	DANE_QUERY_NO_DNSSEC
} dane_query_status_t;

typedef struct dane_state_st *dane_state_t;
typedef struct dane_query_st *dane_query_t;

/**
 * dane_state_flags_t:
 * @DANE_F_IGNORE_LOCAL_RESOLVER: Many systems are not DNSSEC-ready. In that case the local resolver is ignored, and a direct recursive resolve occurs.
 * @DANE_F_INSECURE: Ignore any DNSSEC signature verification errors.
 * @DANE_F_IGNORE_DNSSEC: Do not try to initialize DNSSEC as we will not use it (will then not try to load the DNSSEC root certificate).  Useful if the TLSA data does not come from DNS.
 *
 * Enumeration of different verification flags.
 */
typedef enum dane_state_flags_t {
	DANE_F_IGNORE_LOCAL_RESOLVER = 1,
	DANE_F_INSECURE = 2,
	DANE_F_IGNORE_DNSSEC = 4
} dane_state_flags_t;

int dane_state_init(dane_state_t * s, unsigned int flags);
int dane_state_set_dlv_file(dane_state_t s, const char *file);
void dane_state_deinit(dane_state_t s);


int dane_raw_tlsa(dane_state_t s, dane_query_t * r, char *const *dane_data,
		  const int *dane_data_len, int secure, int bogus);

int dane_query_tlsa(dane_state_t s, dane_query_t * r, const char *host,
		    const char *proto, unsigned int port);

dane_query_status_t dane_query_status(dane_query_t q);
unsigned int dane_query_entries(dane_query_t q);
int dane_query_data(dane_query_t q, unsigned int idx,
		    unsigned int *usage, unsigned int *type,
		    unsigned int *match, gnutls_datum_t * data);
int dane_query_to_raw_tlsa(dane_query_t q, unsigned int *data_entries,
		    char ***dane_data, int **dane_data_len, int *secure, int *bogus);
void dane_query_deinit(dane_query_t q);

const char *dane_cert_type_name(dane_cert_type_t type);
const char *dane_match_type_name(dane_match_type_t type);
const char *dane_cert_usage_name(dane_cert_usage_t usage);

/**
 * dane_verify_flags_t:
 * @DANE_VFLAG_FAIL_IF_NOT_CHECKED: If irrelevant to this certificate DANE entries are received fail instead of succeeding.
 * @DANE_VFLAG_ONLY_CHECK_EE_USAGE: The provided certificates will be verified only against any EE field. Combine with %DANE_VFLAG_FAIL_IF_NOT_CHECKED to fail if EE entries are not present.
 * @DANE_VFLAG_ONLY_CHECK_CA_USAGE: The provided certificates will be verified only against any CA field. Combine with %DANE_VFLAG_FAIL_IF_NOT_CHECKED to fail if CA entries are not present.
 *
 * Enumeration of different verification status flags.
 */
typedef enum dane_verify_flags_t {
	DANE_VFLAG_FAIL_IF_NOT_CHECKED = 1,
	DANE_VFLAG_ONLY_CHECK_EE_USAGE = 1 << 1,
	DANE_VFLAG_ONLY_CHECK_CA_USAGE = 1 << 2,
} dane_verify_flags_t;

/**
 * dane_verify_status_t:
 * @DANE_VERIFY_CA_CONSTRAINTS_VIOLATED: The CA constraints were violated.
 * @DANE_VERIFY_CERT_DIFFERS: The certificate obtained via DNS differs.
 * @DANE_VERIFY_UNKNOWN_DANE_INFO: No known DANE data was found in the DNS record.
 *
 * Enumeration of different verification status flags.
 */
typedef enum dane_verify_status_t {
	DANE_VERIFY_CA_CONSTRAINTS_VIOLATED = 1,
	DANE_VERIFY_CERT_DIFFERS = 1 << 1,
	DANE_VERIFY_UNKNOWN_DANE_INFO = 1 << 2,
} dane_verify_status_t;

#define DANE_VERIFY_CA_CONSTRAINS_VIOLATED DANE_VERIFY_CA_CONSTRAINTS_VIOLATED
#define DANE_VERIFY_NO_DANE_INFO DANE_VERIFY_UNKNOWN_DANE_INFO

int
dane_verification_status_print(unsigned int status,
			       gnutls_datum_t * out, unsigned int flags);

int dane_verify_crt_raw(dane_state_t s,
			const gnutls_datum_t * chain, unsigned chain_size,
			gnutls_certificate_type_t chain_type,
			dane_query_t r,
			unsigned int sflags, unsigned int vflags,
			unsigned int *verify);

int dane_verify_crt(dane_state_t s,
		    const gnutls_datum_t * chain, unsigned chain_size,
		    gnutls_certificate_type_t chain_type,
		    const char *hostname, const char *proto,
		    unsigned int port, unsigned int sflags,
		    unsigned int vflags, unsigned int *verify);

int dane_verify_session_crt(dane_state_t s,
			    gnutls_session_t session,
			    const char *hostname, const char *proto,
			    unsigned int port, unsigned int sflags,
			    unsigned int vflags, unsigned int *verify);

const char *dane_strerror(int error);

#define DANE_E_SUCCESS 0
#define DANE_E_INITIALIZATION_ERROR -1
#define DANE_E_RESOLVING_ERROR -2
#define DANE_E_NO_DANE_DATA -3
#define DANE_E_RECEIVED_CORRUPT_DATA -4
#define DANE_E_INVALID_DNSSEC_SIG -5
#define DANE_E_NO_DNSSEC_SIG -6
#define DANE_E_MEMORY_ERROR -7
#define DANE_E_REQUESTED_DATA_NOT_AVAILABLE -8
#define DANE_E_INVALID_REQUEST -9
#define DANE_E_PUBKEY_ERROR -10
#define DANE_E_NO_CERT -11
#define DANE_E_FILE_ERROR -12
#define DANE_E_CERT_ERROR -13
#define DANE_E_UNKNOWN_DANE_DATA -14

#endif /* GNUTLS_DANE_H */
PK�vFZ��װ�:�:	openpgp.hnu�[���/*
 * Copyright (C) 2003-2012 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

/* This file contains the types and prototypes for the OpenPGP
 * key and private key parsing functions.
 */

#ifndef GNUTLS_OPENPGP_H
#define GNUTLS_OPENPGP_H

#include <gnutls/gnutls.h>
#include <limits.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

/* Openpgp certificate stuff
 */

/**
 * gnutls_openpgp_crt_fmt_t:
 * @GNUTLS_OPENPGP_FMT_RAW: OpenPGP certificate in raw format.
 * @GNUTLS_OPENPGP_FMT_BASE64: OpenPGP certificate in base64 format.
 *
 * Enumeration of different OpenPGP key formats.
 */
typedef enum gnutls_openpgp_crt_fmt {
	GNUTLS_OPENPGP_FMT_RAW,
	GNUTLS_OPENPGP_FMT_BASE64
} gnutls_openpgp_crt_fmt_t;

#define GNUTLS_OPENPGP_KEYID_SIZE 8
#define GNUTLS_OPENPGP_V4_FINGERPRINT_SIZE 20
typedef unsigned char
 gnutls_openpgp_keyid_t[GNUTLS_OPENPGP_KEYID_SIZE];

/* gnutls_openpgp_cert_t should be defined in gnutls.h
 */

	/* initializes the memory for gnutls_openpgp_crt_t struct */
int gnutls_openpgp_crt_init(gnutls_openpgp_crt_t * key) _GNUTLS_GCC_ATTR_DEPRECATED;
	/* frees all memory */
void gnutls_openpgp_crt_deinit(gnutls_openpgp_crt_t key) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_import(gnutls_openpgp_crt_t key,
			      const gnutls_datum_t * data,
			      gnutls_openpgp_crt_fmt_t format) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_export(gnutls_openpgp_crt_t key,
			      gnutls_openpgp_crt_fmt_t format,
			      void *output_data,
			      size_t * output_data_size) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_export2(gnutls_openpgp_crt_t key,
			       gnutls_openpgp_crt_fmt_t format,
			       gnutls_datum_t * out) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_print(gnutls_openpgp_crt_t cert,
			     gnutls_certificate_print_formats_t
			     format, gnutls_datum_t * out) _GNUTLS_GCC_ATTR_DEPRECATED;

/* The key_usage flags are defined in gnutls.h. They are
 * the GNUTLS_KEY_* definitions.
 */
#define GNUTLS_OPENPGP_MASTER_KEYID_IDX INT_MAX

int gnutls_openpgp_crt_get_key_usage(gnutls_openpgp_crt_t key,
				     unsigned int *key_usage) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_get_fingerprint(gnutls_openpgp_crt_t key,
				       void *fpr, size_t * fprlen) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_get_subkey_fingerprint(gnutls_openpgp_crt_t
					      key,
					      unsigned int idx,
					      void *fpr, size_t * fprlen) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_get_name(gnutls_openpgp_crt_t key,
				int idx, char *buf, size_t * sizeof_buf) _GNUTLS_GCC_ATTR_DEPRECATED;

gnutls_pk_algorithm_t
gnutls_openpgp_crt_get_pk_algorithm(gnutls_openpgp_crt_t key,
				    unsigned int *bits) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_get_version(gnutls_openpgp_crt_t key) _GNUTLS_GCC_ATTR_DEPRECATED;

time_t gnutls_openpgp_crt_get_creation_time(gnutls_openpgp_crt_t key) _GNUTLS_GCC_ATTR_DEPRECATED;
time_t gnutls_openpgp_crt_get_expiration_time(gnutls_openpgp_crt_t key) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_get_key_id(gnutls_openpgp_crt_t key,
				  gnutls_openpgp_keyid_t keyid) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_check_hostname(gnutls_openpgp_crt_t key,
				      const char *hostname) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_check_hostname2(gnutls_openpgp_crt_t key,
				      const char *hostname, unsigned int flags) _GNUTLS_GCC_ATTR_DEPRECATED;
int
gnutls_openpgp_crt_check_email(gnutls_openpgp_crt_t key, const char *email, unsigned flags) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_get_revoked_status(gnutls_openpgp_crt_t key) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_get_subkey_count(gnutls_openpgp_crt_t key) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_get_subkey_idx(gnutls_openpgp_crt_t key,
				      const gnutls_openpgp_keyid_t keyid) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_get_subkey_revoked_status
    (gnutls_openpgp_crt_t key, unsigned int idx) _GNUTLS_GCC_ATTR_DEPRECATED;
gnutls_pk_algorithm_t
gnutls_openpgp_crt_get_subkey_pk_algorithm(gnutls_openpgp_crt_t
					   key,
					   unsigned int idx,
					   unsigned int *bits) _GNUTLS_GCC_ATTR_DEPRECATED;
time_t
    gnutls_openpgp_crt_get_subkey_creation_time
    (gnutls_openpgp_crt_t key, unsigned int idx) _GNUTLS_GCC_ATTR_DEPRECATED;
time_t
    gnutls_openpgp_crt_get_subkey_expiration_time
    (gnutls_openpgp_crt_t key, unsigned int idx) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_get_subkey_id(gnutls_openpgp_crt_t key,
				     unsigned int idx,
				     gnutls_openpgp_keyid_t keyid) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_get_subkey_usage(gnutls_openpgp_crt_t key,
					unsigned int idx,
					unsigned int *key_usage) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_get_subkey_pk_dsa_raw(gnutls_openpgp_crt_t
					     crt, unsigned int idx,
					     gnutls_datum_t * p,
					     gnutls_datum_t * q,
					     gnutls_datum_t * g,
					     gnutls_datum_t * y) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_get_subkey_pk_rsa_raw(gnutls_openpgp_crt_t
					     crt, unsigned int idx,
					     gnutls_datum_t * m,
					     gnutls_datum_t * e) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_get_pk_dsa_raw(gnutls_openpgp_crt_t crt,
				      gnutls_datum_t * p,
				      gnutls_datum_t * q,
				      gnutls_datum_t * g,
				      gnutls_datum_t * y) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_crt_get_pk_rsa_raw(gnutls_openpgp_crt_t crt,
				      gnutls_datum_t * m,
				      gnutls_datum_t * e) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_get_preferred_key_id(gnutls_openpgp_crt_t
					    key,
					    gnutls_openpgp_keyid_t keyid) _GNUTLS_GCC_ATTR_DEPRECATED;
int
gnutls_openpgp_crt_set_preferred_key_id(gnutls_openpgp_crt_t key,
					const
					gnutls_openpgp_keyid_t keyid) _GNUTLS_GCC_ATTR_DEPRECATED;

/* privkey stuff.
 */
int gnutls_openpgp_privkey_init(gnutls_openpgp_privkey_t * key) _GNUTLS_GCC_ATTR_DEPRECATED;
void gnutls_openpgp_privkey_deinit(gnutls_openpgp_privkey_t key) _GNUTLS_GCC_ATTR_DEPRECATED;
gnutls_pk_algorithm_t
    gnutls_openpgp_privkey_get_pk_algorithm
    (gnutls_openpgp_privkey_t key, unsigned int *bits) _GNUTLS_GCC_ATTR_DEPRECATED;

gnutls_sec_param_t
gnutls_openpgp_privkey_sec_param(gnutls_openpgp_privkey_t key) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_privkey_import(gnutls_openpgp_privkey_t key,
				  const gnutls_datum_t * data,
				  gnutls_openpgp_crt_fmt_t format,
				  const char *password,
				  unsigned int flags) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_privkey_get_fingerprint(gnutls_openpgp_privkey_t
					   key, void *fpr,
					   size_t * fprlen) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_privkey_get_subkey_fingerprint
    (gnutls_openpgp_privkey_t key, unsigned int idx, void *fpr,
     size_t * fprlen) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_privkey_get_key_id(gnutls_openpgp_privkey_t key,
				      gnutls_openpgp_keyid_t keyid) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_privkey_get_subkey_count(gnutls_openpgp_privkey_t key) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_privkey_get_subkey_idx(gnutls_openpgp_privkey_t
					  key,
					  const
					  gnutls_openpgp_keyid_t keyid) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_privkey_get_subkey_revoked_status
    (gnutls_openpgp_privkey_t key, unsigned int idx) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_privkey_get_revoked_status
    (gnutls_openpgp_privkey_t key) _GNUTLS_GCC_ATTR_DEPRECATED;

gnutls_pk_algorithm_t
    gnutls_openpgp_privkey_get_subkey_pk_algorithm
    (gnutls_openpgp_privkey_t key, unsigned int idx, unsigned int *bits) _GNUTLS_GCC_ATTR_DEPRECATED;

time_t
    gnutls_openpgp_privkey_get_subkey_expiration_time
    (gnutls_openpgp_privkey_t key, unsigned int idx) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_privkey_get_subkey_id(gnutls_openpgp_privkey_t
					 key, unsigned int idx,
					 gnutls_openpgp_keyid_t keyid) _GNUTLS_GCC_ATTR_DEPRECATED;

time_t
    gnutls_openpgp_privkey_get_subkey_creation_time
    (gnutls_openpgp_privkey_t key, unsigned int idx) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_privkey_export_subkey_dsa_raw
    (gnutls_openpgp_privkey_t pkey, unsigned int idx,
     gnutls_datum_t * p, gnutls_datum_t * q, gnutls_datum_t * g,
     gnutls_datum_t * y, gnutls_datum_t * x) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_privkey_export_subkey_rsa_raw
    (gnutls_openpgp_privkey_t pkey, unsigned int idx,
     gnutls_datum_t * m, gnutls_datum_t * e, gnutls_datum_t * d,
     gnutls_datum_t * p, gnutls_datum_t * q, gnutls_datum_t * u) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_privkey_export_dsa_raw(gnutls_openpgp_privkey_t
					  pkey, gnutls_datum_t * p,
					  gnutls_datum_t * q,
					  gnutls_datum_t * g,
					  gnutls_datum_t * y,
					  gnutls_datum_t * x) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_privkey_export_rsa_raw(gnutls_openpgp_privkey_t
					  pkey, gnutls_datum_t * m,
					  gnutls_datum_t * e,
					  gnutls_datum_t * d,
					  gnutls_datum_t * p,
					  gnutls_datum_t * q,
					  gnutls_datum_t * u) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_privkey_export(gnutls_openpgp_privkey_t key,
				  gnutls_openpgp_crt_fmt_t format,
				  const char *password,
				  unsigned int flags,
				  void *output_data,
				  size_t * output_data_size) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_privkey_export2(gnutls_openpgp_privkey_t key,
				   gnutls_openpgp_crt_fmt_t format,
				   const char *password,
				   unsigned int flags,
				   gnutls_datum_t * out) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_privkey_set_preferred_key_id
    (gnutls_openpgp_privkey_t key, const gnutls_openpgp_keyid_t keyid) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_openpgp_privkey_get_preferred_key_id
    (gnutls_openpgp_privkey_t key, gnutls_openpgp_keyid_t keyid) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_get_auth_subkey(gnutls_openpgp_crt_t crt,
				       gnutls_openpgp_keyid_t
				       keyid, unsigned int flag) _GNUTLS_GCC_ATTR_DEPRECATED;

/* Keyring stuff.
 */

int gnutls_openpgp_keyring_init(gnutls_openpgp_keyring_t * keyring) _GNUTLS_GCC_ATTR_DEPRECATED;
void gnutls_openpgp_keyring_deinit(gnutls_openpgp_keyring_t keyring) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_keyring_import(gnutls_openpgp_keyring_t keyring,
				  const gnutls_datum_t * data,
				  gnutls_openpgp_crt_fmt_t format) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_keyring_check_id(gnutls_openpgp_keyring_t ring,
				    const gnutls_openpgp_keyid_t
				    keyid, unsigned int flags) _GNUTLS_GCC_ATTR_DEPRECATED;


int gnutls_openpgp_crt_verify_ring(gnutls_openpgp_crt_t key,
				   gnutls_openpgp_keyring_t
				   keyring, unsigned int flags,
				   unsigned int *verify
				   /* the output of the verification */
    ) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_crt_verify_self(gnutls_openpgp_crt_t key,
				   unsigned int flags,
				   unsigned int *verify) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_keyring_get_crt(gnutls_openpgp_keyring_t ring,
				   unsigned int idx,
				   gnutls_openpgp_crt_t * cert) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_keyring_get_crt_count(gnutls_openpgp_keyring_t ring) _GNUTLS_GCC_ATTR_DEPRECATED;



/**
 * gnutls_openpgp_recv_key_func:
 * @session: a TLS session
 * @keyfpr: key fingerprint
 * @keyfpr_length: length of key fingerprint
 * @key: output key.
 *
 * A callback of this type is used to retrieve OpenPGP keys.  Only
 * useful on the server, and will only be used if the peer send a key
 * fingerprint instead of a full key.  See also
 * gnutls_openpgp_set_recv_key_function().
 *
 * The variable @key must be allocated using gnutls_malloc().
 *
 * Returns: On success, %GNUTLS_E_SUCCESS (zero) is returned,
 *   otherwise an error code is returned.
 */
typedef int (*gnutls_openpgp_recv_key_func) (gnutls_session_t
					     session,
					     const unsigned char
					     *keyfpr,
					     unsigned int
					     keyfpr_length,
					     gnutls_datum_t * key);

void
gnutls_openpgp_set_recv_key_function(gnutls_session_t session,
				     gnutls_openpgp_recv_key_func func) _GNUTLS_GCC_ATTR_DEPRECATED;



/* certificate authentication stuff.
 */
int gnutls_certificate_set_openpgp_key
    (gnutls_certificate_credentials_t res,
     gnutls_openpgp_crt_t crt, gnutls_openpgp_privkey_t pkey) _GNUTLS_GCC_ATTR_DEPRECATED;

int
gnutls_certificate_get_openpgp_key(gnutls_certificate_credentials_t res,
                                   unsigned index,
                                   gnutls_openpgp_privkey_t *key) _GNUTLS_GCC_ATTR_DEPRECATED;
int
gnutls_certificate_get_openpgp_crt(gnutls_certificate_credentials_t res,
                                   unsigned index,
                                   gnutls_openpgp_crt_t **crt_list,
                                   unsigned *crt_list_size) _GNUTLS_GCC_ATTR_DEPRECATED;

int
 gnutls_certificate_set_openpgp_key_file
    (gnutls_certificate_credentials_t res, const char *certfile,
     const char *keyfile, gnutls_openpgp_crt_fmt_t format) _GNUTLS_GCC_ATTR_DEPRECATED;
int gnutls_certificate_set_openpgp_key_mem
    (gnutls_certificate_credentials_t res,
     const gnutls_datum_t * cert, const gnutls_datum_t * key,
     gnutls_openpgp_crt_fmt_t format) _GNUTLS_GCC_ATTR_DEPRECATED;

int
 gnutls_certificate_set_openpgp_key_file2
    (gnutls_certificate_credentials_t res, const char *certfile,
     const char *keyfile, const char *subkey_id,
     gnutls_openpgp_crt_fmt_t format) _GNUTLS_GCC_ATTR_DEPRECATED;
int
 gnutls_certificate_set_openpgp_key_mem2
    (gnutls_certificate_credentials_t res,
     const gnutls_datum_t * cert, const gnutls_datum_t * key,
     const char *subkey_id, gnutls_openpgp_crt_fmt_t format) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_certificate_set_openpgp_keyring_mem
    (gnutls_certificate_credentials_t c, const unsigned char *data,
     size_t dlen, gnutls_openpgp_crt_fmt_t format) _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_certificate_set_openpgp_keyring_file
    (gnutls_certificate_credentials_t c, const char *file,
     gnutls_openpgp_crt_fmt_t format) _GNUTLS_GCC_ATTR_DEPRECATED;

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif				/* GNUTLS_OPENPGP_H */
PK�vFZA���	�	urls.hnu�[���/*
 * Copyright (C) 2014 Red Hat, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

#ifndef __GNUTLS_URLS_H
#define __GNUTLS_URLS_H

#include <gnutls/gnutls.h>
#include <gnutls/x509.h>
#include <gnutls/abstract.h>

/* This API allows to register application specific URLs for
 * keys and certificates.
 */

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

typedef int (*gnutls_privkey_import_url_func)(gnutls_privkey_t pkey,
					       const char *url, unsigned flags);

typedef int (*gnutls_x509_crt_import_url_func)(gnutls_x509_crt_t pkey,
					        const char *url, unsigned flags);

/* The following callbacks are optional */

/* This is to enable gnutls_pubkey_import_url() */
typedef int (*gnutls_pubkey_import_url_func)(gnutls_pubkey_t pkey,
					     const char *url, unsigned flags);

/* This is to allow constructing a certificate chain. It will be provided
 * the initial certificate URL and the certificate to find its issuer, and must
 * return zero and the DER encoding of the issuer's certificate. If not available,
 * it should return GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE. */
typedef int (*gnutls_get_raw_issuer_func)(const char *url, gnutls_x509_crt_t crt,
					  gnutls_datum_t *issuer_der, unsigned flags);

typedef struct gnutls_custom_url_st {
	const char *name;
	unsigned name_size;
	gnutls_privkey_import_url_func import_key;
	gnutls_x509_crt_import_url_func import_crt;
	gnutls_pubkey_import_url_func import_pubkey;
	gnutls_get_raw_issuer_func get_issuer;
	void *future1; /* replace in a future extension */
	void *future2; /* replace in a future extension */
} gnutls_custom_url_st;

int gnutls_register_custom_url(const gnutls_custom_url_st *st);

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif
PK�vFZ��~		tpm.hnu�[���/*
 * Copyright (C) 2010-2012 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

#ifndef __GNUTLS_TPM_H
#define __GNUTLS_TPM_H

#include <gnutls/gnutls.h>
#include <gnutls/x509.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

struct tpm_key_list_st;
typedef struct tpm_key_list_st *gnutls_tpm_key_list_t;

#define GNUTLS_TPM_KEY_SIGNING (1<<1)
#define GNUTLS_TPM_REGISTER_KEY (1<<2)
#define GNUTLS_TPM_KEY_USER (1<<3)

/**
 * gnutls_tpmkey_fmt_t:
 * @GNUTLS_TPMKEY_FMT_RAW: The portable data format.
 * @GNUTLS_TPMKEY_FMT_DER: An alias for the raw format.
 * @GNUTLS_TPMKEY_FMT_CTK_PEM: A custom data format used by some TPM tools.
 *
 * Enumeration of different certificate encoding formats.
 */
typedef enum {
	GNUTLS_TPMKEY_FMT_RAW = 0,
	GNUTLS_TPMKEY_FMT_DER = GNUTLS_TPMKEY_FMT_RAW,
	GNUTLS_TPMKEY_FMT_CTK_PEM = 1
} gnutls_tpmkey_fmt_t;

int
gnutls_tpm_privkey_generate(gnutls_pk_algorithm_t pk,
			    unsigned int bits,
			    const char *srk_password,
			    const char *key_password,
			    gnutls_tpmkey_fmt_t format,
			    gnutls_x509_crt_fmt_t pub_format,
			    gnutls_datum_t * privkey,
			    gnutls_datum_t * pubkey, unsigned int flags);

void gnutls_tpm_key_list_deinit(gnutls_tpm_key_list_t list);
int gnutls_tpm_key_list_get_url(gnutls_tpm_key_list_t list,
				unsigned int idx, char **url,
				unsigned int flags);
int gnutls_tpm_get_registered(gnutls_tpm_key_list_t * list);
int gnutls_tpm_privkey_delete(const char *url, const char *srk_password);


/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif
PK�vFZ҇u�!!gnutls.hnu�[���/* -*- c -*-
 * Copyright (C) 2000-2016 Free Software Foundation, Inc.
 * Copyright (C) 2015-2017 Red Hat, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

/* This file contains the types and prototypes for all the
 * high level functionality of the gnutls main library.
 *
 * If the optional C++ binding was built, it is available in
 * gnutls/gnutlsxx.h.
 *
 * The openssl compatibility layer (which is under the GNU GPL
 * license) is in gnutls/openssl.h.
 *
 * The low level cipher functionality is in gnutls/crypto.h.
 */


#ifndef GNUTLS_H
#define GNUTLS_H

/* Get ssize_t. */
#include <sys/types.h>

/* Get size_t. */
#include <stddef.h>

/* Get time_t. */
#include <time.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

#define GNUTLS_VERSION "3.6.16"

#define GNUTLS_VERSION_MAJOR 3
#define GNUTLS_VERSION_MINOR 6
#define GNUTLS_VERSION_PATCH 16

#define GNUTLS_VERSION_NUMBER 0x030610

#define GNUTLS_CIPHER_RIJNDAEL_128_CBC GNUTLS_CIPHER_AES_128_CBC
#define GNUTLS_CIPHER_RIJNDAEL_256_CBC GNUTLS_CIPHER_AES_256_CBC
#define GNUTLS_CIPHER_RIJNDAEL_CBC GNUTLS_CIPHER_AES_128_CBC
#define GNUTLS_CIPHER_ARCFOUR GNUTLS_CIPHER_ARCFOUR_128

#if !defined(GNUTLS_INTERNAL_BUILD) && defined(_WIN32)
# define _SYM_EXPORT __declspec(dllimport)
#else
# define _SYM_EXPORT
#endif

#ifdef __GNUC__
# define __GNUTLS_CONST__  __attribute__((const))
# define __GNUTLS_PURE__  __attribute__((pure))
#else
# define __GNUTLS_CONST__
# define __GNUTLS_PURE__
#endif


/* Use the following definition globally in your program to disable
 * implicit initialization of gnutls. */
#define GNUTLS_SKIP_GLOBAL_INIT int _gnutls_global_init_skip(void); \
    int _gnutls_global_init_skip(void) {return 1;}

/**
 * gnutls_cipher_algorithm_t:
 * @GNUTLS_CIPHER_UNKNOWN: Value to identify an unknown/unsupported algorithm.
 * @GNUTLS_CIPHER_NULL: The NULL (identity) encryption algorithm.
 * @GNUTLS_CIPHER_ARCFOUR_128: ARCFOUR stream cipher with 128-bit keys.
 * @GNUTLS_CIPHER_3DES_CBC: 3DES in CBC mode.
 * @GNUTLS_CIPHER_AES_128_CBC: AES in CBC mode with 128-bit keys.
 * @GNUTLS_CIPHER_AES_192_CBC: AES in CBC mode with 192-bit keys.
 * @GNUTLS_CIPHER_AES_256_CBC: AES in CBC mode with 256-bit keys.
 * @GNUTLS_CIPHER_AES_128_CFB8: AES in CFB8 mode with 128-bit keys.
 * @GNUTLS_CIPHER_AES_192_CFB8: AES in CFB8 mode with 192-bit keys.
 * @GNUTLS_CIPHER_AES_256_CFB8: AES in CFB8 mode with 256-bit keys.
 * @GNUTLS_CIPHER_ARCFOUR_40: ARCFOUR stream cipher with 40-bit keys.
 * @GNUTLS_CIPHER_CAMELLIA_128_CBC: Camellia in CBC mode with 128-bit keys.
 * @GNUTLS_CIPHER_CAMELLIA_192_CBC: Camellia in CBC mode with 192-bit keys.
 * @GNUTLS_CIPHER_CAMELLIA_256_CBC: Camellia in CBC mode with 256-bit keys.
 * @GNUTLS_CIPHER_RC2_40_CBC: RC2 in CBC mode with 40-bit keys.
 * @GNUTLS_CIPHER_DES_CBC: DES in CBC mode (56-bit keys).
 * @GNUTLS_CIPHER_AES_128_GCM: AES in GCM mode with 128-bit keys (AEAD).
 * @GNUTLS_CIPHER_AES_256_GCM: AES in GCM mode with 256-bit keys (AEAD).
 * @GNUTLS_CIPHER_AES_128_CCM: AES in CCM mode with 128-bit keys (AEAD).
 * @GNUTLS_CIPHER_AES_256_CCM: AES in CCM mode with 256-bit keys (AEAD).
 * @GNUTLS_CIPHER_AES_128_CCM_8: AES in CCM mode with 64-bit tag and 128-bit keys (AEAD).
 * @GNUTLS_CIPHER_AES_256_CCM_8: AES in CCM mode with 64-bit tag and 256-bit keys (AEAD).
 * @GNUTLS_CIPHER_CAMELLIA_128_GCM: CAMELLIA in GCM mode with 128-bit keys (AEAD).
 * @GNUTLS_CIPHER_CAMELLIA_256_GCM: CAMELLIA in GCM mode with 256-bit keys (AEAD).
 * @GNUTLS_CIPHER_SALSA20_256: Salsa20 with 256-bit keys.
 * @GNUTLS_CIPHER_ESTREAM_SALSA20_256: Estream's Salsa20 variant with 256-bit keys.
 * @GNUTLS_CIPHER_CHACHA20_32: Chacha20 cipher with 96-bit nonces and 32-bit block counters.
 * @GNUTLS_CIPHER_CHACHA20_64: Chacha20 cipher with 64-bit nonces and 64-bit block counters.
 * @GNUTLS_CIPHER_CHACHA20_POLY1305: The Chacha20 cipher with the Poly1305 authenticator (AEAD).
 * @GNUTLS_CIPHER_GOST28147_TC26Z_CFB: GOST 28147-89 (Magma) cipher in CFB mode with TC26 Z S-box.
 * @GNUTLS_CIPHER_GOST28147_CPA_CFB: GOST 28147-89 (Magma) cipher in CFB mode with CryptoPro A S-box.
 * @GNUTLS_CIPHER_GOST28147_CPB_CFB: GOST 28147-89 (Magma) cipher in CFB mode with CryptoPro B S-box.
 * @GNUTLS_CIPHER_GOST28147_CPC_CFB: GOST 28147-89 (Magma) cipher in CFB mode with CryptoPro C S-box.
 * @GNUTLS_CIPHER_GOST28147_CPD_CFB: GOST 28147-89 (Magma) cipher in CFB mode with CryptoPro D S-box.
 * @GNUTLS_CIPHER_AES_128_XTS: AES in XTS mode with 128-bit key + 128bit tweak key.
 * @GNUTLS_CIPHER_AES_256_XTS: AES in XTS mode with 256-bit key + 256bit tweak key.
 *                             Note that the XTS ciphers are message oriented.
 *                             The whole message needs to be provided with a single call, because
 *                             cipher-stealing requires to know where the message actually terminates
 *                             in order to be able to compute where the stealing occurs.
 * @GNUTLS_CIPHER_GOST28147_TC26Z_CNT: GOST 28147-89 (Magma) cipher in CNT mode with TC26 Z S-box.
 * @GNUTLS_CIPHER_IDEA_PGP_CFB: IDEA in CFB mode (placeholder - unsupported).
 * @GNUTLS_CIPHER_3DES_PGP_CFB: 3DES in CFB mode (placeholder - unsupported).
 * @GNUTLS_CIPHER_CAST5_PGP_CFB: CAST5 in CFB mode (placeholder - unsupported).
 * @GNUTLS_CIPHER_BLOWFISH_PGP_CFB: Blowfish in CFB mode (placeholder - unsupported).
 * @GNUTLS_CIPHER_SAFER_SK128_PGP_CFB: Safer-SK in CFB mode with 128-bit keys (placeholder - unsupported).
 * @GNUTLS_CIPHER_AES128_PGP_CFB: AES in CFB mode with 128-bit keys (placeholder - unsupported).
 * @GNUTLS_CIPHER_AES192_PGP_CFB: AES in CFB mode with 192-bit keys (placeholder - unsupported).
 * @GNUTLS_CIPHER_AES256_PGP_CFB: AES in CFB mode with 256-bit keys (placeholder - unsupported).
 * @GNUTLS_CIPHER_TWOFISH_PGP_CFB: Twofish in CFB mode (placeholder - unsupported).
 * @GNUTLS_CIPHER_AES_128_SIV: AES in SIV mode with 128-bit key.
 * @GNUTLS_CIPHER_AES_256_SIV: AES in SIV mode with 256-bit key.
 *                             Note that the SIV ciphers can only be used with
 *                             the AEAD interface, and the IV plays a role as
 *                             the authentication tag while it is prepended to
 *                             the cipher text.
 * @GNUTLS_CIPHER_AES_192_GCM: AES in GCM mode with 192-bit keys (AEAD).
 *
 * Enumeration of different symmetric encryption algorithms.
 */
typedef enum gnutls_cipher_algorithm {
	GNUTLS_CIPHER_UNKNOWN = 0,
	GNUTLS_CIPHER_NULL = 1,
	GNUTLS_CIPHER_ARCFOUR_128 = 2,
	GNUTLS_CIPHER_3DES_CBC = 3,
	GNUTLS_CIPHER_AES_128_CBC = 4,
	GNUTLS_CIPHER_AES_256_CBC = 5,
	GNUTLS_CIPHER_ARCFOUR_40 = 6,
	GNUTLS_CIPHER_CAMELLIA_128_CBC = 7,
	GNUTLS_CIPHER_CAMELLIA_256_CBC = 8,
	GNUTLS_CIPHER_AES_192_CBC = 9,
	GNUTLS_CIPHER_AES_128_GCM = 10,
	GNUTLS_CIPHER_AES_256_GCM = 11,
	GNUTLS_CIPHER_CAMELLIA_192_CBC = 12,
	GNUTLS_CIPHER_SALSA20_256 = 13,
	GNUTLS_CIPHER_ESTREAM_SALSA20_256 = 14,
	GNUTLS_CIPHER_CAMELLIA_128_GCM = 15,
	GNUTLS_CIPHER_CAMELLIA_256_GCM = 16,
	GNUTLS_CIPHER_RC2_40_CBC = 17,
	GNUTLS_CIPHER_DES_CBC = 18,
	GNUTLS_CIPHER_AES_128_CCM = 19,
	GNUTLS_CIPHER_AES_256_CCM = 20,
	GNUTLS_CIPHER_AES_128_CCM_8 = 21,
	GNUTLS_CIPHER_AES_256_CCM_8 = 22,
	GNUTLS_CIPHER_CHACHA20_POLY1305 = 23,
	GNUTLS_CIPHER_GOST28147_TC26Z_CFB = 24,
	GNUTLS_CIPHER_GOST28147_CPA_CFB = 25,
	GNUTLS_CIPHER_GOST28147_CPB_CFB = 26,
	GNUTLS_CIPHER_GOST28147_CPC_CFB = 27,
	GNUTLS_CIPHER_GOST28147_CPD_CFB = 28,
	GNUTLS_CIPHER_AES_128_CFB8 = 29,
	GNUTLS_CIPHER_AES_192_CFB8 = 30,
	GNUTLS_CIPHER_AES_256_CFB8 = 31,
	GNUTLS_CIPHER_AES_128_XTS = 32,
	GNUTLS_CIPHER_AES_256_XTS = 33,
	GNUTLS_CIPHER_GOST28147_TC26Z_CNT = 34,
	GNUTLS_CIPHER_CHACHA20_64 = 35,
	GNUTLS_CIPHER_CHACHA20_32 = 36,
	GNUTLS_CIPHER_AES_128_SIV = 37,
	GNUTLS_CIPHER_AES_256_SIV = 38,
	GNUTLS_CIPHER_AES_192_GCM = 39,

	/* used only for PGP internals. Ignored in TLS/SSL
	 */
	GNUTLS_CIPHER_IDEA_PGP_CFB = 200,
	GNUTLS_CIPHER_3DES_PGP_CFB = 201,
	GNUTLS_CIPHER_CAST5_PGP_CFB = 202,
	GNUTLS_CIPHER_BLOWFISH_PGP_CFB = 203,
	GNUTLS_CIPHER_SAFER_SK128_PGP_CFB = 204,
	GNUTLS_CIPHER_AES128_PGP_CFB = 205,
	GNUTLS_CIPHER_AES192_PGP_CFB = 206,
	GNUTLS_CIPHER_AES256_PGP_CFB = 207,
	GNUTLS_CIPHER_TWOFISH_PGP_CFB = 208
} gnutls_cipher_algorithm_t;

/**
 * gnutls_kx_algorithm_t:
 * @GNUTLS_KX_UNKNOWN: Unknown key-exchange algorithm.
 * @GNUTLS_KX_RSA: RSA key-exchange algorithm.
 * @GNUTLS_KX_DHE_DSS: DHE-DSS key-exchange algorithm.
 * @GNUTLS_KX_DHE_RSA: DHE-RSA key-exchange algorithm.
 * @GNUTLS_KX_ECDHE_RSA: ECDHE-RSA key-exchange algorithm.
 * @GNUTLS_KX_ECDHE_ECDSA: ECDHE-ECDSA key-exchange algorithm.
 * @GNUTLS_KX_ANON_DH: Anon-DH key-exchange algorithm.
 * @GNUTLS_KX_ANON_ECDH: Anon-ECDH key-exchange algorithm.
 * @GNUTLS_KX_SRP: SRP key-exchange algorithm.
 * @GNUTLS_KX_RSA_EXPORT: RSA-EXPORT key-exchange algorithm (defunc).
 * @GNUTLS_KX_SRP_RSA: SRP-RSA key-exchange algorithm.
 * @GNUTLS_KX_SRP_DSS: SRP-DSS key-exchange algorithm.
 * @GNUTLS_KX_PSK: PSK key-exchange algorithm.
 * @GNUTLS_KX_DHE_PSK: DHE-PSK key-exchange algorithm.
 * @GNUTLS_KX_ECDHE_PSK: ECDHE-PSK key-exchange algorithm.
 * @GNUTLS_KX_RSA_PSK: RSA-PSK key-exchange algorithm.
 * @GNUTLS_KX_VKO_GOST_12: VKO GOST R 34.10-2012 key-exchange algorithm.
 *
 * Enumeration of different key exchange algorithms.
 */
typedef enum {
	GNUTLS_KX_UNKNOWN = 0,
	GNUTLS_KX_RSA = 1,
	GNUTLS_KX_DHE_DSS = 2,
	GNUTLS_KX_DHE_RSA = 3,
	GNUTLS_KX_ANON_DH = 4,
	GNUTLS_KX_SRP = 5,
	GNUTLS_KX_RSA_EXPORT = 6,
	GNUTLS_KX_SRP_RSA = 7,
	GNUTLS_KX_SRP_DSS = 8,
	GNUTLS_KX_PSK = 9,
	GNUTLS_KX_DHE_PSK = 10,
	GNUTLS_KX_ANON_ECDH = 11,
	GNUTLS_KX_ECDHE_RSA = 12,
	GNUTLS_KX_ECDHE_ECDSA = 13,
	GNUTLS_KX_ECDHE_PSK = 14,
	GNUTLS_KX_RSA_PSK = 15,
	GNUTLS_KX_VKO_GOST_12 = 16
} gnutls_kx_algorithm_t;

/**
 * gnutls_params_type_t:
 * @GNUTLS_PARAMS_RSA_EXPORT: Session RSA-EXPORT parameters (defunc).
 * @GNUTLS_PARAMS_DH: Session Diffie-Hellman parameters.
 * @GNUTLS_PARAMS_ECDH: Session Elliptic-Curve Diffie-Hellman parameters.
 *
 * Enumeration of different TLS session parameter types.
 */
typedef enum {
	GNUTLS_PARAMS_RSA_EXPORT = 1,
	GNUTLS_PARAMS_DH = 2,
	GNUTLS_PARAMS_ECDH = 3
} gnutls_params_type_t;

/**
 * gnutls_credentials_type_t:
 * @GNUTLS_CRD_CERTIFICATE: Certificate credential.
 * @GNUTLS_CRD_ANON: Anonymous credential.
 * @GNUTLS_CRD_SRP: SRP credential.
 * @GNUTLS_CRD_PSK: PSK credential.
 * @GNUTLS_CRD_IA: IA credential.
 *
 * Enumeration of different credential types.
 */
typedef enum {
	GNUTLS_CRD_CERTIFICATE = 1,
	GNUTLS_CRD_ANON,
	GNUTLS_CRD_SRP,
	GNUTLS_CRD_PSK,
	GNUTLS_CRD_IA
} gnutls_credentials_type_t;

#define GNUTLS_MAC_SHA GNUTLS_MAC_SHA1
#define GNUTLS_DIG_SHA GNUTLS_DIG_SHA1

/**
 * gnutls_mac_algorithm_t:
 * @GNUTLS_MAC_UNKNOWN: Unknown MAC algorithm.
 * @GNUTLS_MAC_NULL: NULL MAC algorithm (empty output).
 * @GNUTLS_MAC_MD5: HMAC-MD5 algorithm.
 * @GNUTLS_MAC_SHA1: HMAC-SHA-1 algorithm.
 * @GNUTLS_MAC_RMD160: HMAC-RMD160 algorithm.
 * @GNUTLS_MAC_MD2: HMAC-MD2 algorithm.
 * @GNUTLS_MAC_SHA256: HMAC-SHA-256 algorithm.
 * @GNUTLS_MAC_SHA384: HMAC-SHA-384 algorithm.
 * @GNUTLS_MAC_SHA512: HMAC-SHA-512 algorithm.
 * @GNUTLS_MAC_SHA224: HMAC-SHA-224 algorithm.
 * @GNUTLS_MAC_MD5_SHA1: Combined MD5+SHA1 MAC placeholder.
 * @GNUTLS_MAC_GOSTR_94: HMAC GOST R 34.11-94 algorithm.
 * @GNUTLS_MAC_STREEBOG_256: HMAC GOST R 34.11-2001 (Streebog) algorithm, 256 bit.
 * @GNUTLS_MAC_STREEBOG_512: HMAC GOST R 34.11-2001 (Streebog) algorithm, 512 bit.
 * @GNUTLS_MAC_AEAD: MAC implicit through AEAD cipher.
 * @GNUTLS_MAC_UMAC_96: The UMAC-96 MAC algorithm (requires nonce).
 * @GNUTLS_MAC_UMAC_128: The UMAC-128 MAC algorithm (requires nonce).
 * @GNUTLS_MAC_AES_CMAC_128: The AES-CMAC-128 MAC algorithm.
 * @GNUTLS_MAC_AES_CMAC_256: The AES-CMAC-256 MAC algorithm.
 * @GNUTLS_MAC_AES_GMAC_128: The AES-GMAC-128 MAC algorithm (requires nonce).
 * @GNUTLS_MAC_AES_GMAC_192: The AES-GMAC-192 MAC algorithm (requires nonce).
 * @GNUTLS_MAC_AES_GMAC_256: The AES-GMAC-256 MAC algorithm (requires nonce).
 * @GNUTLS_MAC_SHA3_224: Reserved; unimplemented.
 * @GNUTLS_MAC_SHA3_256: Reserved; unimplemented.
 * @GNUTLS_MAC_SHA3_384: Reserved; unimplemented.
 * @GNUTLS_MAC_SHA3_512: Reserved; unimplemented.
 * @GNUTLS_MAC_GOST28147_TC26Z_IMIT: The GOST 28147-89 working in IMIT mode with TC26 Z S-box.
 * @GNUTLS_MAC_SHAKE_128: Reserved; unimplemented.
 * @GNUTLS_MAC_SHAKE_256: Reserved; unimplemented.
 *
 * Enumeration of different Message Authentication Code (MAC)
 * algorithms.
 */
typedef enum {
	GNUTLS_MAC_UNKNOWN = 0,
	GNUTLS_MAC_NULL = 1,
	GNUTLS_MAC_MD5 = 2,
	GNUTLS_MAC_SHA1 = 3,
	GNUTLS_MAC_RMD160 = 4,
	GNUTLS_MAC_MD2 = 5,
	GNUTLS_MAC_SHA256 = 6,
	GNUTLS_MAC_SHA384 = 7,
	GNUTLS_MAC_SHA512 = 8,
	GNUTLS_MAC_SHA224 = 9,
	GNUTLS_MAC_SHA3_224 = 10, /* reserved: no implementation */
	GNUTLS_MAC_SHA3_256 = 11, /* reserved: no implementation */
	GNUTLS_MAC_SHA3_384 = 12, /* reserved: no implementation */
	GNUTLS_MAC_SHA3_512 = 13, /* reserved: no implementation */
	GNUTLS_MAC_MD5_SHA1 = 14, /* reserved: no implementation */
	GNUTLS_MAC_GOSTR_94 = 15,
	GNUTLS_MAC_STREEBOG_256 = 16,
	GNUTLS_MAC_STREEBOG_512 = 17,
	/* If you add anything here, make sure you align with
	   gnutls_digest_algorithm_t. */
	GNUTLS_MAC_AEAD = 200,	/* indicates that MAC is on the cipher */
	GNUTLS_MAC_UMAC_96 = 201,
	GNUTLS_MAC_UMAC_128 = 202,
	GNUTLS_MAC_AES_CMAC_128 = 203,
	GNUTLS_MAC_AES_CMAC_256 = 204,
	GNUTLS_MAC_AES_GMAC_128 = 205,
	GNUTLS_MAC_AES_GMAC_192 = 206,
	GNUTLS_MAC_AES_GMAC_256 = 207,
	GNUTLS_MAC_GOST28147_TC26Z_IMIT = 208,
	GNUTLS_MAC_SHAKE_128 = 209,
	GNUTLS_MAC_SHAKE_256 = 210
} gnutls_mac_algorithm_t;

/**
 * gnutls_digest_algorithm_t:
 * @GNUTLS_DIG_UNKNOWN: Unknown hash algorithm.
 * @GNUTLS_DIG_NULL: NULL hash algorithm (empty output).
 * @GNUTLS_DIG_MD5: MD5 algorithm.
 * @GNUTLS_DIG_SHA1: SHA-1 algorithm.
 * @GNUTLS_DIG_RMD160: RMD160 algorithm.
 * @GNUTLS_DIG_MD2: MD2 algorithm.
 * @GNUTLS_DIG_SHA256: SHA-256 algorithm.
 * @GNUTLS_DIG_SHA384: SHA-384 algorithm.
 * @GNUTLS_DIG_SHA512: SHA-512 algorithm.
 * @GNUTLS_DIG_SHA224: SHA-224 algorithm.
 * @GNUTLS_DIG_SHA3_224: SHA3-224 algorithm.
 * @GNUTLS_DIG_SHA3_256: SHA3-256 algorithm.
 * @GNUTLS_DIG_SHA3_384: SHA3-384 algorithm.
 * @GNUTLS_DIG_SHA3_512: SHA3-512 algorithm.
 * @GNUTLS_DIG_MD5_SHA1: Combined MD5+SHA1 algorithm.
 * @GNUTLS_DIG_GOSTR_94: GOST R 34.11-94 algorithm.
 * @GNUTLS_DIG_STREEBOG_256: GOST R 34.11-2001 (Streebog) algorithm, 256 bit.
 * @GNUTLS_DIG_STREEBOG_512: GOST R 34.11-2001 (Streebog) algorithm, 512 bit.
 * @GNUTLS_DIG_SHAKE_128: Reserved; unimplemented.
 * @GNUTLS_DIG_SHAKE_256: Reserved; unimplemented.
 *
 * Enumeration of different digest (hash) algorithms.
 */
typedef enum {
	GNUTLS_DIG_UNKNOWN = GNUTLS_MAC_UNKNOWN,
	GNUTLS_DIG_NULL = GNUTLS_MAC_NULL,
	GNUTLS_DIG_MD5 = GNUTLS_MAC_MD5,
	GNUTLS_DIG_SHA1 = GNUTLS_MAC_SHA1,
	GNUTLS_DIG_RMD160 = GNUTLS_MAC_RMD160,
	GNUTLS_DIG_MD2 = GNUTLS_MAC_MD2,
	GNUTLS_DIG_SHA256 = GNUTLS_MAC_SHA256,
	GNUTLS_DIG_SHA384 = GNUTLS_MAC_SHA384,
	GNUTLS_DIG_SHA512 = GNUTLS_MAC_SHA512,
	GNUTLS_DIG_SHA224 = GNUTLS_MAC_SHA224,
	GNUTLS_DIG_SHA3_224 = GNUTLS_MAC_SHA3_224,
	GNUTLS_DIG_SHA3_256 = GNUTLS_MAC_SHA3_256,
	GNUTLS_DIG_SHA3_384 = GNUTLS_MAC_SHA3_384,
	GNUTLS_DIG_SHA3_512 = GNUTLS_MAC_SHA3_512,
	GNUTLS_DIG_MD5_SHA1 = GNUTLS_MAC_MD5_SHA1,
	GNUTLS_DIG_GOSTR_94 = GNUTLS_MAC_GOSTR_94,
	GNUTLS_DIG_STREEBOG_256 = GNUTLS_MAC_STREEBOG_256,
	GNUTLS_DIG_STREEBOG_512 = GNUTLS_MAC_STREEBOG_512,
	GNUTLS_DIG_SHAKE_128 = GNUTLS_MAC_SHAKE_128,
	GNUTLS_DIG_SHAKE_256 = GNUTLS_MAC_SHAKE_256
	    /* If you add anything here, make sure you align with
	       gnutls_mac_algorithm_t. */
} gnutls_digest_algorithm_t;

  /* exported for other gnutls headers. This is the maximum number of
   * algorithms (ciphers, kx or macs).
   */
#define GNUTLS_MAX_ALGORITHM_NUM 64
#define GNUTLS_MAX_SESSION_ID_SIZE 32


/**
 * gnutls_compression_method_t:
 * @GNUTLS_COMP_UNKNOWN: Unknown compression method.
 * @GNUTLS_COMP_NULL: The NULL compression method (no compression).
 * @GNUTLS_COMP_DEFLATE: The DEFLATE compression method from zlib.
 * @GNUTLS_COMP_ZLIB: Same as %GNUTLS_COMP_DEFLATE.
 *
 * Enumeration of different TLS compression methods.
 */
typedef enum {
	GNUTLS_COMP_UNKNOWN = 0,
	GNUTLS_COMP_NULL = 1,
	GNUTLS_COMP_DEFLATE = 2,
	GNUTLS_COMP_ZLIB = GNUTLS_COMP_DEFLATE
} gnutls_compression_method_t;


/**
 * gnutls_init_flags_t:
 *
 * @GNUTLS_SERVER: Connection end is a server.
 * @GNUTLS_CLIENT: Connection end is a client.
 * @GNUTLS_DATAGRAM: Connection is datagram oriented (DTLS). Since 3.0.0.
 * @GNUTLS_NONBLOCK: Connection should not block. Since 3.0.0.
 * @GNUTLS_NO_SIGNAL: In systems where SIGPIPE is delivered on send, it will be disabled. That flag has effect in systems which support the MSG_NOSIGNAL sockets flag (since 3.4.2).
 * @GNUTLS_NO_EXTENSIONS: Do not enable any TLS extensions by default (since 3.1.2). As TLS 1.2 and later require extensions this option is considered obsolete and should not be used.
 * @GNUTLS_NO_REPLAY_PROTECTION: Disable any replay protection in DTLS. This must only be used if  replay protection is achieved using other means. Since 3.2.2.
 * @GNUTLS_ALLOW_ID_CHANGE: Allow the peer to replace its certificate, or change its ID during a rehandshake. This change is often used in attacks and thus prohibited by default. Since 3.5.0.
 * @GNUTLS_ENABLE_FALSE_START: Enable the TLS false start on client side if the negotiated ciphersuites allow it. This will enable sending data prior to the handshake being complete, and may introduce a risk of crypto failure when combined with certain key exchanged; for that GnuTLS may not enable that option in ciphersuites that are known to be not safe for false start. Since 3.5.0.
 * @GNUTLS_ENABLE_EARLY_START: Under TLS1.3 allow the server to return earlier than the full handshake
 *   finish; similarly to false start the handshake will be completed once data are received by the
 *   client, while the server is able to transmit sooner. This is not enabled by default as it could
 *   break certain existing server assumptions and use-cases. Since 3.6.4.
 * @GNUTLS_ENABLE_EARLY_DATA: Under TLS1.3 allow the server to receive early data sent as part of the initial ClientHello (0-RTT). This is not enabled by default as early data has weaker security properties than other data. Since 3.6.5.
 * @GNUTLS_FORCE_CLIENT_CERT: When in client side and only a single cert is specified, send that certificate irrespective of the issuers expected by the server. Since 3.5.0.
 * @GNUTLS_NO_TICKETS: Flag to indicate that the session should not use resumption with session tickets.
 * @GNUTLS_KEY_SHARE_TOP3: Generate key shares for the top-3 different groups which are enabled.
 *   That is, as each group is associated with a key type (EC, finite field, x25519), generate
 *   three keys using %GNUTLS_PK_DH, %GNUTLS_PK_EC, %GNUTLS_PK_ECDH_X25519 if all of them are enabled.
 * @GNUTLS_KEY_SHARE_TOP2: Generate key shares for the top-2 different groups which are enabled.
 *   For example (ECDH + x25519). This is the default.
 * @GNUTLS_KEY_SHARE_TOP: Generate key share for the first group which is enabled.
 *   For example x25519. This option is the most performant for client (less CPU spent
 *   generating keys), but if the server doesn't support the advertized option it may
 *   result to more roundtrips needed to discover the server's choice.
 * @GNUTLS_NO_AUTO_REKEY: Disable auto-rekeying under TLS1.3. If this option is not specified
 *   gnutls will force a rekey after 2^24 records have been sent.
 * @GNUTLS_POST_HANDSHAKE_AUTH: Enable post handshake authentication for server and client. When set and
 *   a server requests authentication after handshake %GNUTLS_E_REAUTH_REQUEST will be returned
 *   by gnutls_record_recv(). A client should then call gnutls_reauth() to re-authenticate.
 * @GNUTLS_SAFE_PADDING_CHECK: Flag to indicate that the TLS 1.3 padding check will be done in a
 *   safe way which doesn't leak the pad size based on GnuTLS processing time. This is of use to
 *   applications which hide the length of transferred data via the TLS1.3 padding mechanism and
 *   are already taking steps to hide the data processing time. This comes at a performance
 *   penalty.
 * @GNUTLS_AUTO_REAUTH: Enable transparent re-authentication in client side when the server
 *    requests to. That is, reauthentication is handled within gnutls_record_recv(), and
 *    the %GNUTLS_E_REHANDSHAKE or %GNUTLS_E_REAUTH_REQUEST are not returned. This must be
 *    enabled with %GNUTLS_POST_HANDSHAKE_AUTH for TLS1.3. Enabling this flag requires to restore
 *    interrupted calls to gnutls_record_recv() based on the output of gnutls_record_get_direction(),
 *    since gnutls_record_recv() could be interrupted when sending when this flag is enabled.
 *    Note this flag may not be used if you are using the same session for sending and receiving
 *    in different threads.
 * @GNUTLS_ENABLE_EARLY_DATA: Under TLS1.3 allow the server to receive early data sent as part of the initial ClientHello (0-RTT). 
 *    This is not enabled by default as early data has weaker security properties than other data. Since 3.6.5.
 * @GNUTLS_ENABLE_RAWPK: Allows raw public-keys to be negotiated during the handshake. Since 3.6.6.
 * @GNUTLS_NO_AUTO_SEND_TICKET: Under TLS1.3 disable auto-sending of
 *    session tickets during the handshake.
 *
 * Enumeration of different flags for gnutls_init() function. All the flags
 * can be combined except @GNUTLS_SERVER and @GNUTLS_CLIENT which are mutually
 * exclusive.
 *
 * The key share options relate to the TLS 1.3 key share extension
 * which is a speculative key generation expecting that the server
 * would support the generated key.
 */
typedef enum {
	GNUTLS_SERVER = 1,
	GNUTLS_CLIENT = (1<<1),
	GNUTLS_DATAGRAM = (1<<2),
	GNUTLS_NONBLOCK = (1<<3),
	GNUTLS_NO_EXTENSIONS = (1<<4),
	GNUTLS_NO_REPLAY_PROTECTION = (1<<5),
	GNUTLS_NO_SIGNAL = (1<<6),
	GNUTLS_ALLOW_ID_CHANGE = (1<<7),
	GNUTLS_ENABLE_FALSE_START = (1<<8),
	GNUTLS_FORCE_CLIENT_CERT = (1<<9),
	GNUTLS_NO_TICKETS = (1<<10),
	GNUTLS_KEY_SHARE_TOP = (1<<11),
	GNUTLS_KEY_SHARE_TOP2 = (1<<12),
	GNUTLS_KEY_SHARE_TOP3 = (1<<13),
	GNUTLS_POST_HANDSHAKE_AUTH = (1<<14),
	GNUTLS_NO_AUTO_REKEY = (1<<15),
	GNUTLS_SAFE_PADDING_CHECK = (1<<16),
	GNUTLS_ENABLE_EARLY_START = (1<<17),
	GNUTLS_ENABLE_RAWPK = (1<<18),
	GNUTLS_AUTO_REAUTH = (1<<19),
	GNUTLS_ENABLE_EARLY_DATA = (1<<20),
	GNUTLS_NO_AUTO_SEND_TICKET = (1<<21)
} gnutls_init_flags_t;

/* compatibility defines (previous versions of gnutls
 * used defines instead of enumerated values). */
#define GNUTLS_SERVER (1)
#define GNUTLS_CLIENT (1<<1)
#define GNUTLS_DATAGRAM (1<<2)
#define GNUTLS_NONBLOCK (1<<3)
#define GNUTLS_NO_EXTENSIONS (1<<4)
#define GNUTLS_NO_REPLAY_PROTECTION (1<<5)
#define GNUTLS_NO_SIGNAL (1<<6)
#define GNUTLS_ALLOW_ID_CHANGE (1<<7)
#define GNUTLS_ENABLE_FALSE_START (1<<8)
#define GNUTLS_FORCE_CLIENT_CERT (1<<9)
#define GNUTLS_NO_TICKETS (1<<10)
#define GNUTLS_ENABLE_CERT_TYPE_NEG 0
	// Here for compatibility reasons

/**
 * gnutls_alert_level_t:
 * @GNUTLS_AL_WARNING: Alert of warning severity.
 * @GNUTLS_AL_FATAL: Alert of fatal severity.
 *
 * Enumeration of different TLS alert severities.
 */
typedef enum {
	GNUTLS_AL_WARNING = 1,
	GNUTLS_AL_FATAL
} gnutls_alert_level_t;

/**
 * gnutls_alert_description_t:
 * @GNUTLS_A_CLOSE_NOTIFY: Close notify.
 * @GNUTLS_A_UNEXPECTED_MESSAGE: Unexpected message.
 * @GNUTLS_A_BAD_RECORD_MAC: Bad record MAC.
 * @GNUTLS_A_DECRYPTION_FAILED: Decryption failed.
 * @GNUTLS_A_RECORD_OVERFLOW: Record overflow.
 * @GNUTLS_A_DECOMPRESSION_FAILURE: Decompression failed.
 * @GNUTLS_A_HANDSHAKE_FAILURE: Handshake failed.
 * @GNUTLS_A_SSL3_NO_CERTIFICATE: No certificate.
 * @GNUTLS_A_BAD_CERTIFICATE: Certificate is bad.
 * @GNUTLS_A_UNSUPPORTED_CERTIFICATE: Certificate is not supported.
 * @GNUTLS_A_CERTIFICATE_REVOKED: Certificate was revoked.
 * @GNUTLS_A_CERTIFICATE_EXPIRED: Certificate is expired.
 * @GNUTLS_A_CERTIFICATE_UNKNOWN: Unknown certificate.
 * @GNUTLS_A_ILLEGAL_PARAMETER: Illegal parameter.
 * @GNUTLS_A_UNKNOWN_CA: CA is unknown.
 * @GNUTLS_A_ACCESS_DENIED: Access was denied.
 * @GNUTLS_A_DECODE_ERROR: Decode error.
 * @GNUTLS_A_DECRYPT_ERROR: Decrypt error.
 * @GNUTLS_A_EXPORT_RESTRICTION: Export restriction.
 * @GNUTLS_A_PROTOCOL_VERSION: Error in protocol version.
 * @GNUTLS_A_INSUFFICIENT_SECURITY: Insufficient security.
 * @GNUTLS_A_INTERNAL_ERROR: Internal error.
 * @GNUTLS_A_INAPPROPRIATE_FALLBACK: Inappropriate fallback,
 * @GNUTLS_A_USER_CANCELED: User canceled.
 * @GNUTLS_A_NO_RENEGOTIATION: No renegotiation is allowed.
 * @GNUTLS_A_MISSING_EXTENSION: An extension was expected but was not seen
 * @GNUTLS_A_UNSUPPORTED_EXTENSION: An unsupported extension was
 *   sent.
 * @GNUTLS_A_CERTIFICATE_UNOBTAINABLE: Could not retrieve the
 *   specified certificate.
 * @GNUTLS_A_UNRECOGNIZED_NAME: The server name sent was not
 *   recognized.
 * @GNUTLS_A_UNKNOWN_PSK_IDENTITY: The SRP/PSK username is missing
 *   or not known.
 * @GNUTLS_A_CERTIFICATE_REQUIRED: Certificate is required.
 * @GNUTLS_A_NO_APPLICATION_PROTOCOL: The ALPN protocol requested is
 *   not supported by the peer.
 *
 * Enumeration of different TLS alerts.
 */
typedef enum {
	GNUTLS_A_CLOSE_NOTIFY,
	GNUTLS_A_UNEXPECTED_MESSAGE = 10,
	GNUTLS_A_BAD_RECORD_MAC = 20,
	GNUTLS_A_DECRYPTION_FAILED,
	GNUTLS_A_RECORD_OVERFLOW,
	GNUTLS_A_DECOMPRESSION_FAILURE = 30,
	GNUTLS_A_HANDSHAKE_FAILURE = 40,
	GNUTLS_A_SSL3_NO_CERTIFICATE = 41,
	GNUTLS_A_BAD_CERTIFICATE = 42,
	GNUTLS_A_UNSUPPORTED_CERTIFICATE,
	GNUTLS_A_CERTIFICATE_REVOKED,
	GNUTLS_A_CERTIFICATE_EXPIRED,
	GNUTLS_A_CERTIFICATE_UNKNOWN,
	GNUTLS_A_ILLEGAL_PARAMETER,
	GNUTLS_A_UNKNOWN_CA,
	GNUTLS_A_ACCESS_DENIED,
	GNUTLS_A_DECODE_ERROR = 50,
	GNUTLS_A_DECRYPT_ERROR,
	GNUTLS_A_EXPORT_RESTRICTION = 60,
	GNUTLS_A_PROTOCOL_VERSION = 70,
	GNUTLS_A_INSUFFICIENT_SECURITY,
	GNUTLS_A_INTERNAL_ERROR = 80,
	GNUTLS_A_INAPPROPRIATE_FALLBACK = 86,
	GNUTLS_A_USER_CANCELED = 90,
	GNUTLS_A_NO_RENEGOTIATION = 100,
	GNUTLS_A_MISSING_EXTENSION = 109,
	GNUTLS_A_UNSUPPORTED_EXTENSION = 110,
	GNUTLS_A_CERTIFICATE_UNOBTAINABLE = 111,
	GNUTLS_A_UNRECOGNIZED_NAME = 112,
	GNUTLS_A_UNKNOWN_PSK_IDENTITY = 115,
	GNUTLS_A_CERTIFICATE_REQUIRED = 116,
	GNUTLS_A_NO_APPLICATION_PROTOCOL = 120,
	GNUTLS_A_MAX = GNUTLS_A_NO_APPLICATION_PROTOCOL
} gnutls_alert_description_t;

/**
 * gnutls_handshake_description_t:
 * @GNUTLS_HANDSHAKE_HELLO_REQUEST: Hello request.
 * @GNUTLS_HANDSHAKE_HELLO_VERIFY_REQUEST: DTLS Hello verify request.
 * @GNUTLS_HANDSHAKE_CLIENT_HELLO: Client hello.
 * @GNUTLS_HANDSHAKE_SERVER_HELLO: Server hello.
 * @GNUTLS_HANDSHAKE_END_OF_EARLY_DATA: End of early data.
 * @GNUTLS_HANDSHAKE_HELLO_RETRY_REQUEST: Hello retry request.
 * @GNUTLS_HANDSHAKE_NEW_SESSION_TICKET: New session ticket.
 * @GNUTLS_HANDSHAKE_CERTIFICATE_PKT: Certificate packet.
 * @GNUTLS_HANDSHAKE_SERVER_KEY_EXCHANGE: Server key exchange.
 * @GNUTLS_HANDSHAKE_CERTIFICATE_REQUEST: Certificate request.
 * @GNUTLS_HANDSHAKE_SERVER_HELLO_DONE: Server hello done.
 * @GNUTLS_HANDSHAKE_CERTIFICATE_VERIFY: Certificate verify.
 * @GNUTLS_HANDSHAKE_CLIENT_KEY_EXCHANGE: Client key exchange.
 * @GNUTLS_HANDSHAKE_FINISHED: Finished.
 * @GNUTLS_HANDSHAKE_CERTIFICATE_STATUS: Certificate status (OCSP).
 * @GNUTLS_HANDSHAKE_KEY_UPDATE: TLS1.3 key update message.
 * @GNUTLS_HANDSHAKE_SUPPLEMENTAL: Supplemental.
 * @GNUTLS_HANDSHAKE_CHANGE_CIPHER_SPEC: Change Cipher Spec.
 * @GNUTLS_HANDSHAKE_CLIENT_HELLO_V2: SSLv2 Client Hello.
 * @GNUTLS_HANDSHAKE_ENCRYPTED_EXTENSIONS: Encrypted extensions message.
 *
 * Enumeration of different TLS handshake packets.
 */
typedef enum {
	GNUTLS_HANDSHAKE_HELLO_REQUEST = 0,
	GNUTLS_HANDSHAKE_CLIENT_HELLO = 1,
	GNUTLS_HANDSHAKE_SERVER_HELLO = 2,
	GNUTLS_HANDSHAKE_HELLO_VERIFY_REQUEST = 3,
	GNUTLS_HANDSHAKE_NEW_SESSION_TICKET = 4,
	GNUTLS_HANDSHAKE_END_OF_EARLY_DATA = 5,
	GNUTLS_HANDSHAKE_ENCRYPTED_EXTENSIONS = 8,
	GNUTLS_HANDSHAKE_CERTIFICATE_PKT = 11,
	GNUTLS_HANDSHAKE_SERVER_KEY_EXCHANGE = 12,
	GNUTLS_HANDSHAKE_CERTIFICATE_REQUEST = 13,
	GNUTLS_HANDSHAKE_SERVER_HELLO_DONE = 14,
	GNUTLS_HANDSHAKE_CERTIFICATE_VERIFY = 15,
	GNUTLS_HANDSHAKE_CLIENT_KEY_EXCHANGE = 16,
	GNUTLS_HANDSHAKE_FINISHED = 20,
	GNUTLS_HANDSHAKE_CERTIFICATE_STATUS = 22,
	GNUTLS_HANDSHAKE_SUPPLEMENTAL = 23,
	GNUTLS_HANDSHAKE_KEY_UPDATE = 24,
	GNUTLS_HANDSHAKE_CHANGE_CIPHER_SPEC = 254,
	GNUTLS_HANDSHAKE_CLIENT_HELLO_V2 = 1024,
	GNUTLS_HANDSHAKE_HELLO_RETRY_REQUEST = 1025,
} gnutls_handshake_description_t;

#define GNUTLS_HANDSHAKE_ANY ((unsigned int)-1)

const char
    *gnutls_handshake_description_get_name(gnutls_handshake_description_t
					   type);

/**
 * gnutls_certificate_status_t:
 * @GNUTLS_CERT_INVALID: The certificate is not signed by one of the
 *   known authorities or the signature is invalid (deprecated by the flags 
 *   %GNUTLS_CERT_SIGNATURE_FAILURE and %GNUTLS_CERT_SIGNER_NOT_FOUND).
 * @GNUTLS_CERT_SIGNATURE_FAILURE: The signature verification failed.
 * @GNUTLS_CERT_REVOKED: Certificate is revoked by its authority.  In X.509 this will be
 *   set only if CRLs are checked.
 * @GNUTLS_CERT_SIGNER_NOT_FOUND: The certificate's issuer is not known. 
 *   This is the case if the issuer is not included in the trusted certificate list.
 * @GNUTLS_CERT_SIGNER_NOT_CA: The certificate's signer was not a CA. This
 *   may happen if this was a version 1 certificate, which is common with
 *   some CAs, or a version 3 certificate without the basic constrains extension.
 * @GNUTLS_CERT_SIGNER_CONSTRAINTS_FAILURE: The certificate's signer constraints were
 *   violated.
 * @GNUTLS_CERT_INSECURE_ALGORITHM:  The certificate was signed using an insecure
 *   algorithm such as MD2 or MD5. These algorithms have been broken and
 *   should not be trusted.
 * @GNUTLS_CERT_NOT_ACTIVATED: The certificate is not yet activated.
 * @GNUTLS_CERT_EXPIRED: The certificate has expired.
 * @GNUTLS_CERT_REVOCATION_DATA_SUPERSEDED: The revocation data are old and have been superseded.
 * @GNUTLS_CERT_REVOCATION_DATA_ISSUED_IN_FUTURE: The revocation data have a future issue date.
 * @GNUTLS_CERT_UNEXPECTED_OWNER: The owner is not the expected one.
 * @GNUTLS_CERT_MISMATCH: The certificate presented isn't the expected one (TOFU)
 * @GNUTLS_CERT_PURPOSE_MISMATCH: The certificate or an intermediate does not match the intended purpose (extended key usage).
 * @GNUTLS_CERT_MISSING_OCSP_STATUS: The certificate requires the server to send the certifiate status, but no status was received.
 * @GNUTLS_CERT_INVALID_OCSP_STATUS: The received OCSP status response is invalid.
 * @GNUTLS_CERT_UNKNOWN_CRIT_EXTENSIONS: The certificate has extensions marked as critical which are not supported.
 *
 * Enumeration of certificate status codes.  Note that the status
 * bits may have different meanings in OpenPGP keys and X.509
 * certificate verification.
 */
typedef enum {
	GNUTLS_CERT_INVALID = 1 << 1,
	GNUTLS_CERT_REVOKED = 1 << 5,
	GNUTLS_CERT_SIGNER_NOT_FOUND = 1 << 6,
	GNUTLS_CERT_SIGNER_NOT_CA = 1 << 7,
	GNUTLS_CERT_INSECURE_ALGORITHM = 1 << 8,
	GNUTLS_CERT_NOT_ACTIVATED = 1 << 9,
	GNUTLS_CERT_EXPIRED = 1 << 10,
	GNUTLS_CERT_SIGNATURE_FAILURE = 1 << 11,
	GNUTLS_CERT_REVOCATION_DATA_SUPERSEDED = 1 << 12,
	GNUTLS_CERT_UNEXPECTED_OWNER = 1 << 14,
	GNUTLS_CERT_REVOCATION_DATA_ISSUED_IN_FUTURE = 1 << 15,
	GNUTLS_CERT_SIGNER_CONSTRAINTS_FAILURE = 1 << 16,
	GNUTLS_CERT_MISMATCH = 1 << 17,
	GNUTLS_CERT_PURPOSE_MISMATCH = 1 << 18,
	GNUTLS_CERT_MISSING_OCSP_STATUS = 1 << 19,
	GNUTLS_CERT_INVALID_OCSP_STATUS = 1 << 20,
	GNUTLS_CERT_UNKNOWN_CRIT_EXTENSIONS = 1 << 21
} gnutls_certificate_status_t;

/**
 * gnutls_certificate_request_t:
 * @GNUTLS_CERT_IGNORE: Ignore certificate.
 * @GNUTLS_CERT_REQUEST: Request certificate.
 * @GNUTLS_CERT_REQUIRE: Require certificate.
 *
 * Enumeration of certificate request types.
 */
typedef enum {
	GNUTLS_CERT_IGNORE = 0,
	GNUTLS_CERT_REQUEST = 1,
	GNUTLS_CERT_REQUIRE = 2
} gnutls_certificate_request_t;

/**
 * gnutls_openpgp_crt_status_t:
 * @GNUTLS_OPENPGP_CERT: Send entire certificate.
 * @GNUTLS_OPENPGP_CERT_FINGERPRINT: Send only certificate fingerprint.
 *
 * Enumeration of ways to send OpenPGP certificate.
 */
typedef enum {
	GNUTLS_OPENPGP_CERT = 0,
	GNUTLS_OPENPGP_CERT_FINGERPRINT = 1
} gnutls_openpgp_crt_status_t;

/**
 * gnutls_close_request_t:
 * @GNUTLS_SHUT_RDWR: Disallow further receives/sends.
 * @GNUTLS_SHUT_WR: Disallow further sends.
 *
 * Enumeration of how TLS session should be terminated.  See gnutls_bye().
 */
typedef enum {
	GNUTLS_SHUT_RDWR = 0,
	GNUTLS_SHUT_WR = 1
} gnutls_close_request_t;

/**
 * gnutls_protocol_t:
 * @GNUTLS_SSL3: SSL version 3.0.
 * @GNUTLS_TLS1_0: TLS version 1.0.
 * @GNUTLS_TLS1: Same as %GNUTLS_TLS1_0.
 * @GNUTLS_TLS1_1: TLS version 1.1.
 * @GNUTLS_TLS1_2: TLS version 1.2.
 * @GNUTLS_TLS1_3: TLS version 1.3.
 * @GNUTLS_DTLS1_0: DTLS version 1.0.
 * @GNUTLS_DTLS1_2: DTLS version 1.2.
 * @GNUTLS_DTLS0_9: DTLS version 0.9 (Cisco AnyConnect / OpenSSL 0.9.8e).
 * @GNUTLS_TLS_VERSION_MAX: Maps to the highest supported TLS version.
 * @GNUTLS_DTLS_VERSION_MAX: Maps to the highest supported DTLS version.
 * @GNUTLS_VERSION_UNKNOWN: Unknown SSL/TLS version.
 *
 * Enumeration of different SSL/TLS protocol versions.
 */
typedef enum {
	GNUTLS_SSL3 = 1,
	GNUTLS_TLS1_0 = 2,
	GNUTLS_TLS1 = GNUTLS_TLS1_0,
	GNUTLS_TLS1_1 = 3,
	GNUTLS_TLS1_2 = 4,
	GNUTLS_TLS1_3 = 5,

	GNUTLS_DTLS0_9 = 200,
	GNUTLS_DTLS1_0 = 201,	/* 201 */
	GNUTLS_DTLS1_2 = 202,
	GNUTLS_DTLS_VERSION_MIN = GNUTLS_DTLS0_9,
	GNUTLS_DTLS_VERSION_MAX = GNUTLS_DTLS1_2,
	GNUTLS_TLS_VERSION_MAX = GNUTLS_TLS1_3,
	GNUTLS_VERSION_UNKNOWN = 0xff	/* change it to 0xffff */
} gnutls_protocol_t;

#define GNUTLS_CRT_RAW GNUTLS_CRT_RAWPK

/**
 * gnutls_certificate_type_t:
 * @GNUTLS_CRT_UNKNOWN: Unknown certificate type.
 * @GNUTLS_CRT_X509: X.509 Certificate.
 * @GNUTLS_CRT_OPENPGP: OpenPGP certificate.
 * @GNUTLS_CRT_RAWPK: Raw public-key (SubjectPublicKeyInfo)
 *
 * Enumeration of different certificate types.
 */
typedef enum {
	GNUTLS_CRT_UNKNOWN = 0,
	GNUTLS_CRT_X509 = 1,
	GNUTLS_CRT_OPENPGP = 2,
	GNUTLS_CRT_RAWPK = 3,
	GNUTLS_CRT_MAX = GNUTLS_CRT_RAWPK
} gnutls_certificate_type_t;

/**
 * gnutls_x509_crt_fmt_t:
 * @GNUTLS_X509_FMT_DER: X.509 certificate in DER format (binary).
 * @GNUTLS_X509_FMT_PEM: X.509 certificate in PEM format (text).
 *
 * Enumeration of different certificate encoding formats.
 */
typedef enum {
	GNUTLS_X509_FMT_DER = 0,
	GNUTLS_X509_FMT_PEM = 1
} gnutls_x509_crt_fmt_t;

/**
 * gnutls_certificate_print_formats_t:
 * @GNUTLS_CRT_PRINT_FULL: Full information about certificate.
 * @GNUTLS_CRT_PRINT_FULL_NUMBERS: Full information about certificate and include easy to parse public key parameters.
 * @GNUTLS_CRT_PRINT_COMPACT: Information about certificate name in one line, plus identification of the public key.
 * @GNUTLS_CRT_PRINT_ONELINE: Information about certificate in one line.
 * @GNUTLS_CRT_PRINT_UNSIGNED_FULL: All info for an unsigned certificate.
 *
 * Enumeration of different certificate printing variants.
 */
typedef enum gnutls_certificate_print_formats {
	GNUTLS_CRT_PRINT_FULL = 0,
	GNUTLS_CRT_PRINT_ONELINE = 1,
	GNUTLS_CRT_PRINT_UNSIGNED_FULL = 2,
	GNUTLS_CRT_PRINT_COMPACT = 3,
	GNUTLS_CRT_PRINT_FULL_NUMBERS = 4
} gnutls_certificate_print_formats_t;

#define GNUTLS_PK_ECC GNUTLS_PK_ECDSA
#define GNUTLS_PK_EC GNUTLS_PK_ECDSA

#define GNUTLS_PK_ECDHX GNUTLS_PK_ECDH_X25519
/**
 * gnutls_pk_algorithm_t:
 * @GNUTLS_PK_UNKNOWN: Unknown public-key algorithm.
 * @GNUTLS_PK_RSA: RSA public-key algorithm.
 * @GNUTLS_PK_RSA_PSS: RSA public-key algorithm, with PSS padding.
 * @GNUTLS_PK_DSA: DSA public-key algorithm.
 * @GNUTLS_PK_DH: Diffie-Hellman algorithm. Used to generate parameters.
 * @GNUTLS_PK_ECDSA: Elliptic curve algorithm. These parameters are compatible with the ECDSA and ECDH algorithm.
 * @GNUTLS_PK_ECDH_X25519: Elliptic curve algorithm, restricted to ECDH as per rfc7748.
 * @GNUTLS_PK_EDDSA_ED25519: Edwards curve Digital signature algorithm. Used with SHA512 on signatures.
 * @GNUTLS_PK_GOST_01: GOST R 34.10-2001 algorithm per rfc5832.
 * @GNUTLS_PK_GOST_12_256: GOST R 34.10-2012 algorithm, 256-bit key per rfc7091.
 * @GNUTLS_PK_GOST_12_512: GOST R 34.10-2012 algorithm, 512-bit key per rfc7091.
 * @GNUTLS_PK_ECDH_X448: Elliptic curve algorithm, restricted to ECDH as per rfc7748.
 * @GNUTLS_PK_EDDSA_ED448: Edwards curve Digital signature algorithm. Used with SHAKE256 on signatures.
 *
 * Enumeration of different public-key algorithms.
 */
typedef enum {
	GNUTLS_PK_UNKNOWN = 0,
	GNUTLS_PK_RSA = 1,
	GNUTLS_PK_DSA = 2,
	GNUTLS_PK_DH = 3,
	GNUTLS_PK_ECDSA = 4,
	GNUTLS_PK_ECDH_X25519 = 5,
	GNUTLS_PK_RSA_PSS = 6,
	GNUTLS_PK_EDDSA_ED25519 = 7,
	GNUTLS_PK_GOST_01 = 8,
	GNUTLS_PK_GOST_12_256 = 9,
	GNUTLS_PK_GOST_12_512 = 10,
	GNUTLS_PK_ECDH_X448 = 11,
	GNUTLS_PK_EDDSA_ED448 = 12,
	GNUTLS_PK_MAX = GNUTLS_PK_EDDSA_ED448
} gnutls_pk_algorithm_t;


const char *gnutls_pk_algorithm_get_name(gnutls_pk_algorithm_t algorithm);

/**
 * gnutls_sign_algorithm_t:
 * @GNUTLS_SIGN_UNKNOWN: Unknown signature algorithm.
 * @GNUTLS_SIGN_RSA_RAW: Digital signature algorithm RSA with DigestInfo formatted data
 * @GNUTLS_SIGN_RSA_SHA1: Digital signature algorithm RSA with SHA-1
 * @GNUTLS_SIGN_RSA_SHA: Same as %GNUTLS_SIGN_RSA_SHA1.
 * @GNUTLS_SIGN_DSA_SHA1: Digital signature algorithm DSA with SHA-1
 * @GNUTLS_SIGN_DSA_SHA224: Digital signature algorithm DSA with SHA-224
 * @GNUTLS_SIGN_DSA_SHA256: Digital signature algorithm DSA with SHA-256
 * @GNUTLS_SIGN_DSA_SHA384: Digital signature algorithm DSA with SHA-384
 * @GNUTLS_SIGN_DSA_SHA512: Digital signature algorithm DSA with SHA-512
 * @GNUTLS_SIGN_DSA_SHA: Same as %GNUTLS_SIGN_DSA_SHA1.
 * @GNUTLS_SIGN_RSA_MD5: Digital signature algorithm RSA with MD5.
 * @GNUTLS_SIGN_RSA_MD2: Digital signature algorithm RSA with MD2.
 * @GNUTLS_SIGN_RSA_RMD160: Digital signature algorithm RSA with RMD-160.
 * @GNUTLS_SIGN_RSA_SHA256: Digital signature algorithm RSA with SHA-256.
 * @GNUTLS_SIGN_RSA_SHA384: Digital signature algorithm RSA with SHA-384.
 * @GNUTLS_SIGN_RSA_SHA512: Digital signature algorithm RSA with SHA-512.
 * @GNUTLS_SIGN_RSA_SHA224: Digital signature algorithm RSA with SHA-224.
 * @GNUTLS_SIGN_ECDSA_SHA1: ECDSA with SHA1.
 * @GNUTLS_SIGN_ECDSA_SHA224: Digital signature algorithm ECDSA with SHA-224.
 * @GNUTLS_SIGN_ECDSA_SHA256: Digital signature algorithm ECDSA with SHA-256.
 * @GNUTLS_SIGN_ECDSA_SHA384: Digital signature algorithm ECDSA with SHA-384.
 * @GNUTLS_SIGN_ECDSA_SHA512: Digital signature algorithm ECDSA with SHA-512.
 * @GNUTLS_SIGN_ECDSA_SECP256R1_SHA256: Digital signature algorithm ECDSA-SECP256R1 with SHA-256 (used in TLS 1.3 but not PKIX).
 * @GNUTLS_SIGN_ECDSA_SECP384R1_SHA384: Digital signature algorithm ECDSA-SECP384R1 with SHA-384 (used in TLS 1.3 but not PKIX).
 * @GNUTLS_SIGN_ECDSA_SECP521R1_SHA512: Digital signature algorithm ECDSA-SECP521R1 with SHA-512 (used in TLS 1.3 but not PKIX).
 * @GNUTLS_SIGN_ECDSA_SHA3_224: Digital signature algorithm ECDSA with SHA3-224.
 * @GNUTLS_SIGN_ECDSA_SHA3_256: Digital signature algorithm ECDSA with SHA3-256.
 * @GNUTLS_SIGN_ECDSA_SHA3_384: Digital signature algorithm ECDSA with SHA3-384.
 * @GNUTLS_SIGN_ECDSA_SHA3_512: Digital signature algorithm ECDSA with SHA3-512.
 * @GNUTLS_SIGN_DSA_SHA3_224: Digital signature algorithm DSA with SHA3-224.
 * @GNUTLS_SIGN_DSA_SHA3_256: Digital signature algorithm DSA with SHA3-256.
 * @GNUTLS_SIGN_DSA_SHA3_384: Digital signature algorithm DSA with SHA3-384.
 * @GNUTLS_SIGN_DSA_SHA3_512: Digital signature algorithm DSA with SHA3-512.
 * @GNUTLS_SIGN_RSA_SHA3_224: Digital signature algorithm RSA with SHA3-224.
 * @GNUTLS_SIGN_RSA_SHA3_256: Digital signature algorithm RSA with SHA3-256.
 * @GNUTLS_SIGN_RSA_SHA3_384: Digital signature algorithm RSA with SHA3-384.
 * @GNUTLS_SIGN_RSA_SHA3_512: Digital signature algorithm RSA with SHA3-512.
 * @GNUTLS_SIGN_RSA_PSS_RSAE_SHA256: Digital signature algorithm RSA with SHA-256,
 *      with PSS padding (RSA PKCS#1 1.5 certificate). This signature is identical
 *      to #GNUTLS_SIGN_RSA_PSS_SHA256, but they are distinct as the TLS1.3 protocol
 *      treats them differently.
 * @GNUTLS_SIGN_RSA_PSS_RSAE_SHA384: Digital signature algorithm RSA with SHA-384,
 *      with PSS padding (RSA PKCS#1 1.5 certificate). This signature is identical
 *      to #GNUTLS_SIGN_RSA_PSS_SHA384, but they are distinct as the TLS1.3 protocol
 *      treats them differently.
 * @GNUTLS_SIGN_RSA_PSS_RSAE_SHA512: Digital signature algorithm RSA with SHA-512,
 *      with PSS padding (RSA PKCS#1 1.5 certificate). This signature is identical
 *      to #GNUTLS_SIGN_RSA_PSS_SHA512, but they are distinct as the TLS1.3 protocol
 *      treats them differently.
 * @GNUTLS_SIGN_RSA_PSS_SHA256: Digital signature algorithm RSA with SHA-256, with PSS padding (RSA-PSS certificate).
 * @GNUTLS_SIGN_RSA_PSS_SHA384: Digital signature algorithm RSA with SHA-384, with PSS padding (RSA-PSS certificate).
 * @GNUTLS_SIGN_RSA_PSS_SHA512: Digital signature algorithm RSA with SHA-512, with PSS padding (RSA-PSS certificate).
 * @GNUTLS_SIGN_EDDSA_ED25519: Digital signature algorithm EdDSA with Ed25519 curve.
 * @GNUTLS_SIGN_GOST_94: Digital signature algorithm GOST R 34.10-2001 with GOST R 34.11-94
 * @GNUTLS_SIGN_GOST_256: Digital signature algorithm GOST R 34.10-2012 with GOST R 34.11-2012 256 bit
 * @GNUTLS_SIGN_GOST_512: Digital signature algorithm GOST R 34.10-2012 with GOST R 34.11-2012 512 bit
 * @GNUTLS_SIGN_EDDSA_ED448: Digital signature algorithm EdDSA with Ed448 curve.
 *
 * Enumeration of different digital signature algorithms.
 */
typedef enum {
	GNUTLS_SIGN_UNKNOWN = 0,
	GNUTLS_SIGN_RSA_SHA1 = 1,
	GNUTLS_SIGN_RSA_SHA = GNUTLS_SIGN_RSA_SHA1,
	GNUTLS_SIGN_DSA_SHA1 = 2,
	GNUTLS_SIGN_DSA_SHA = GNUTLS_SIGN_DSA_SHA1,
	GNUTLS_SIGN_RSA_MD5 = 3,
	GNUTLS_SIGN_RSA_MD2 = 4,
	GNUTLS_SIGN_RSA_RMD160 = 5,
	GNUTLS_SIGN_RSA_SHA256 = 6,
	GNUTLS_SIGN_RSA_SHA384 = 7,
	GNUTLS_SIGN_RSA_SHA512 = 8,
	GNUTLS_SIGN_RSA_SHA224 = 9,
	GNUTLS_SIGN_DSA_SHA224 = 10,
	GNUTLS_SIGN_DSA_SHA256 = 11,
	GNUTLS_SIGN_ECDSA_SHA1 = 12,
	GNUTLS_SIGN_ECDSA_SHA224 = 13,
	GNUTLS_SIGN_ECDSA_SHA256 = 14,
	GNUTLS_SIGN_ECDSA_SHA384 = 15,
	GNUTLS_SIGN_ECDSA_SHA512 = 16,
	GNUTLS_SIGN_DSA_SHA384 = 17,
	GNUTLS_SIGN_DSA_SHA512 = 18,
	GNUTLS_SIGN_ECDSA_SHA3_224 = 20,
	GNUTLS_SIGN_ECDSA_SHA3_256 = 21,
	GNUTLS_SIGN_ECDSA_SHA3_384 = 22,
	GNUTLS_SIGN_ECDSA_SHA3_512 = 23,

	GNUTLS_SIGN_DSA_SHA3_224 = 24,
	GNUTLS_SIGN_DSA_SHA3_256 = 25,
	GNUTLS_SIGN_DSA_SHA3_384 = 26,
	GNUTLS_SIGN_DSA_SHA3_512 = 27,
	GNUTLS_SIGN_RSA_SHA3_224 = 28,
	GNUTLS_SIGN_RSA_SHA3_256 = 29,
	GNUTLS_SIGN_RSA_SHA3_384 = 30,
	GNUTLS_SIGN_RSA_SHA3_512 = 31,

	GNUTLS_SIGN_RSA_PSS_SHA256 = 32,
	GNUTLS_SIGN_RSA_PSS_SHA384 = 33,
	GNUTLS_SIGN_RSA_PSS_SHA512 = 34,
	GNUTLS_SIGN_EDDSA_ED25519 = 35,
	GNUTLS_SIGN_RSA_RAW = 36,

	GNUTLS_SIGN_ECDSA_SECP256R1_SHA256 = 37,
	GNUTLS_SIGN_ECDSA_SECP384R1_SHA384 = 38,
	GNUTLS_SIGN_ECDSA_SECP521R1_SHA512 = 39,

	GNUTLS_SIGN_RSA_PSS_RSAE_SHA256 = 40,
	GNUTLS_SIGN_RSA_PSS_RSAE_SHA384 = 41,
	GNUTLS_SIGN_RSA_PSS_RSAE_SHA512 = 42,

	GNUTLS_SIGN_GOST_94 = 43,
	GNUTLS_SIGN_GOST_256 = 44,
	GNUTLS_SIGN_GOST_512 = 45,
	GNUTLS_SIGN_EDDSA_ED448 = 46,
	GNUTLS_SIGN_MAX = GNUTLS_SIGN_EDDSA_ED448
} gnutls_sign_algorithm_t;

/**
 * gnutls_ecc_curve_t:
 * @GNUTLS_ECC_CURVE_INVALID: Cannot be known
 * @GNUTLS_ECC_CURVE_SECP192R1: the SECP192R1 curve
 * @GNUTLS_ECC_CURVE_SECP224R1: the SECP224R1 curve
 * @GNUTLS_ECC_CURVE_SECP256R1: the SECP256R1 curve
 * @GNUTLS_ECC_CURVE_SECP384R1: the SECP384R1 curve
 * @GNUTLS_ECC_CURVE_SECP521R1: the SECP521R1 curve
 * @GNUTLS_ECC_CURVE_X25519: the X25519 curve (ECDH only)
 * @GNUTLS_ECC_CURVE_ED25519: the Ed25519 curve
 * @GNUTLS_ECC_CURVE_GOST256CPA: GOST R 34.10 CryptoPro 256 A curve
 * @GNUTLS_ECC_CURVE_GOST256CPB: GOST R 34.10 CryptoPro 256 B curve
 * @GNUTLS_ECC_CURVE_GOST256CPC: GOST R 34.10 CryptoPro 256 C curve
 * @GNUTLS_ECC_CURVE_GOST256CPXA: GOST R 34.10 CryptoPro 256 XchA curve
 * @GNUTLS_ECC_CURVE_GOST256CPXB: GOST R 34.10 CryptoPro 256 XchB curve
 * @GNUTLS_ECC_CURVE_GOST512A: GOST R 34.10 TC26 512 A curve
 * @GNUTLS_ECC_CURVE_GOST512B: GOST R 34.10 TC26 512 B curve
 * @GNUTLS_ECC_CURVE_GOST512C: GOST R 34.10 TC26 512 C curve
 * @GNUTLS_ECC_CURVE_GOST256A: GOST R 34.10 TC26 256 A curve
 * @GNUTLS_ECC_CURVE_GOST256B: GOST R 34.10 TC26 256 B curve
 * @GNUTLS_ECC_CURVE_GOST256C: GOST R 34.10 TC26 256 C curve
 * @GNUTLS_ECC_CURVE_GOST256D: GOST R 34.10 TC26 256 D curve
 * @GNUTLS_ECC_CURVE_X448: the X448 curve (ECDH only)
 * @GNUTLS_ECC_CURVE_ED448: the Ed448 curve
 *
 * Enumeration of ECC curves.
 */
typedef enum {
	GNUTLS_ECC_CURVE_INVALID = 0,
	GNUTLS_ECC_CURVE_SECP224R1,
	GNUTLS_ECC_CURVE_SECP256R1,
	GNUTLS_ECC_CURVE_SECP384R1,
	GNUTLS_ECC_CURVE_SECP521R1,
	GNUTLS_ECC_CURVE_SECP192R1,
	GNUTLS_ECC_CURVE_X25519,
	GNUTLS_ECC_CURVE_ED25519,
	GNUTLS_ECC_CURVE_GOST256CPA,
	GNUTLS_ECC_CURVE_GOST256CPB,
	GNUTLS_ECC_CURVE_GOST256CPC,
	GNUTLS_ECC_CURVE_GOST256CPXA,
	GNUTLS_ECC_CURVE_GOST256CPXB,
	GNUTLS_ECC_CURVE_GOST512A,
	GNUTLS_ECC_CURVE_GOST512B,
	GNUTLS_ECC_CURVE_GOST512C,
	GNUTLS_ECC_CURVE_GOST256A,
	GNUTLS_ECC_CURVE_GOST256B,
	GNUTLS_ECC_CURVE_GOST256C,
	GNUTLS_ECC_CURVE_GOST256D,
	GNUTLS_ECC_CURVE_X448,
	GNUTLS_ECC_CURVE_ED448,
	GNUTLS_ECC_CURVE_MAX = GNUTLS_ECC_CURVE_ED448
} gnutls_ecc_curve_t;

/**
 * gnutls_group_t:
 * @GNUTLS_GROUP_INVALID: Indicates unknown/invalid group
 * @GNUTLS_GROUP_SECP192R1: the SECP192R1 curve group (legacy, only for TLS 1.2 compatibility)
 * @GNUTLS_GROUP_SECP224R1: the SECP224R1 curve group (legacy, only for TLS 1.2 compatibility)
 * @GNUTLS_GROUP_SECP256R1: the SECP256R1 curve group
 * @GNUTLS_GROUP_SECP384R1: the SECP384R1 curve group
 * @GNUTLS_GROUP_SECP521R1: the SECP521R1 curve group
 * @GNUTLS_GROUP_X25519: the X25519 curve group
 * @GNUTLS_GROUP_GC256A: the GOST R 34.10 TC26 256 A curve group
 * @GNUTLS_GROUP_GC256B: the GOST R 34.10 TC26 256 B curve group
 * @GNUTLS_GROUP_GC256C: the GOST R 34.10 TC26 256 C curve group
 * @GNUTLS_GROUP_GC256D: the GOST R 34.10 TC26 256 D curve group
 * @GNUTLS_GROUP_GC512A: the GOST R 34.10 TC26 512 A curve group
 * @GNUTLS_GROUP_GC512B: the GOST R 34.10 TC26 512 B curve group
 * @GNUTLS_GROUP_GC512C: the GOST R 34.10 TC26 512 C curve group
 * @GNUTLS_GROUP_FFDHE2048: the FFDHE2048 group
 * @GNUTLS_GROUP_FFDHE3072: the FFDHE3072 group
 * @GNUTLS_GROUP_FFDHE4096: the FFDHE4096 group
 * @GNUTLS_GROUP_FFDHE6144: the FFDHE6144 group
 * @GNUTLS_GROUP_FFDHE8192: the FFDHE8192 group
 * @GNUTLS_GROUP_X448: the X448 curve group
 *
 * Enumeration of supported groups. It is intended to be backwards
 * compatible with the enumerations in %gnutls_ecc_curve_t for the groups
 * which are valid elliptic curves.
 */
typedef enum {
	GNUTLS_GROUP_INVALID = 0,
	GNUTLS_GROUP_SECP192R1 = GNUTLS_ECC_CURVE_SECP192R1,
	GNUTLS_GROUP_SECP224R1 = GNUTLS_ECC_CURVE_SECP224R1,
	GNUTLS_GROUP_SECP256R1 = GNUTLS_ECC_CURVE_SECP256R1,
	GNUTLS_GROUP_SECP384R1 = GNUTLS_ECC_CURVE_SECP384R1,
	GNUTLS_GROUP_SECP521R1 = GNUTLS_ECC_CURVE_SECP521R1,
	GNUTLS_GROUP_X25519 = GNUTLS_ECC_CURVE_X25519,
	GNUTLS_GROUP_X448 = GNUTLS_ECC_CURVE_X448,

	GNUTLS_GROUP_GC256A = GNUTLS_ECC_CURVE_GOST256A,
	GNUTLS_GROUP_GC256B = GNUTLS_ECC_CURVE_GOST256B,
	GNUTLS_GROUP_GC256C = GNUTLS_ECC_CURVE_GOST256C,
	GNUTLS_GROUP_GC256D = GNUTLS_ECC_CURVE_GOST256D,
	GNUTLS_GROUP_GC512A = GNUTLS_ECC_CURVE_GOST512A,
	GNUTLS_GROUP_GC512B = GNUTLS_ECC_CURVE_GOST512B,
	GNUTLS_GROUP_GC512C = GNUTLS_ECC_CURVE_GOST512C,

	GNUTLS_GROUP_FFDHE2048 = 256,
	GNUTLS_GROUP_FFDHE3072,
	GNUTLS_GROUP_FFDHE4096,
	GNUTLS_GROUP_FFDHE8192,
	GNUTLS_GROUP_FFDHE6144,
	GNUTLS_GROUP_MAX = GNUTLS_GROUP_FFDHE6144,
} gnutls_group_t;

/* macros to allow specifying a specific curve in gnutls_privkey_generate()
 * and gnutls_x509_privkey_generate() */
#define GNUTLS_CURVE_TO_BITS(curve) (unsigned int)(((unsigned int)1<<31)|((unsigned int)(curve)))
#define GNUTLS_BITS_TO_CURVE(bits) (((unsigned int)(bits)) & 0x7FFFFFFF)
#define GNUTLS_BITS_ARE_CURVE(bits) (((unsigned int)(bits)) & 0x80000000)

/**
 * gnutls_sec_param_t:
 * @GNUTLS_SEC_PARAM_UNKNOWN: Cannot be known
 * @GNUTLS_SEC_PARAM_INSECURE: Less than 42 bits of security
 * @GNUTLS_SEC_PARAM_EXPORT: 42 bits of security
 * @GNUTLS_SEC_PARAM_VERY_WEAK: 64 bits of security
 * @GNUTLS_SEC_PARAM_WEAK: 72 bits of security
 * @GNUTLS_SEC_PARAM_LOW: 80 bits of security
 * @GNUTLS_SEC_PARAM_LEGACY: 96 bits of security
 * @GNUTLS_SEC_PARAM_MEDIUM: 112 bits of security (used to be %GNUTLS_SEC_PARAM_NORMAL)
 * @GNUTLS_SEC_PARAM_HIGH: 128 bits of security
 * @GNUTLS_SEC_PARAM_ULTRA: 192 bits of security
 * @GNUTLS_SEC_PARAM_FUTURE: 256 bits of security
 *
 * Enumeration of security parameters for passive attacks.
 */
typedef enum {
	GNUTLS_SEC_PARAM_UNKNOWN = 0,
	GNUTLS_SEC_PARAM_INSECURE = 5,
	GNUTLS_SEC_PARAM_EXPORT = 10,
	GNUTLS_SEC_PARAM_VERY_WEAK = 15,
	GNUTLS_SEC_PARAM_WEAK = 20,
	GNUTLS_SEC_PARAM_LOW = 25,
	GNUTLS_SEC_PARAM_LEGACY = 30,
	GNUTLS_SEC_PARAM_MEDIUM = 35,
	GNUTLS_SEC_PARAM_HIGH = 40,
	GNUTLS_SEC_PARAM_ULTRA = 45,
	GNUTLS_SEC_PARAM_FUTURE = 50,
	GNUTLS_SEC_PARAM_MAX = GNUTLS_SEC_PARAM_FUTURE
} gnutls_sec_param_t;

/* old name */
#define GNUTLS_SEC_PARAM_NORMAL GNUTLS_SEC_PARAM_MEDIUM

/**
 * gnutls_channel_binding_t:
 * @GNUTLS_CB_TLS_UNIQUE: "tls-unique" (RFC 5929) channel binding
 *
 * Enumeration of support channel binding types.
 */
typedef enum {
	GNUTLS_CB_TLS_UNIQUE
} gnutls_channel_binding_t;

/**
 * gnutls_gost_paramset_t:
 * @GNUTLS_GOST_PARAMSET_UNKNOWN: Unknown/default parameter set
 * @GNUTLS_GOST_PARAMSET_TC26_Z: Specified by TC26, see rfc7836
 * @GNUTLS_GOST_PARAMSET_CP_A: CryptoPro-A, see rfc4357
 * @GNUTLS_GOST_PARAMSET_CP_B: CryptoPro-B, see rfc4357
 * @GNUTLS_GOST_PARAMSET_CP_C: CryptoPro-C, see rfc4357
 * @GNUTLS_GOST_PARAMSET_CP_D: CryptoPro-D, see rfc4357
 *
 * Enumeration of different GOST 28147 parameter sets.
 */
typedef enum {
	GNUTLS_GOST_PARAMSET_UNKNOWN = 0,
	GNUTLS_GOST_PARAMSET_TC26_Z,
	GNUTLS_GOST_PARAMSET_CP_A,
	GNUTLS_GOST_PARAMSET_CP_B,
	GNUTLS_GOST_PARAMSET_CP_C,
	GNUTLS_GOST_PARAMSET_CP_D
} gnutls_gost_paramset_t;

/**
 * gnutls_ctype_target_t:
 * @GNUTLS_CTYPE_CLIENT: for requesting client certificate type values.
 * @GNUTLS_CTYPE_SERVER: for requesting server certificate type values.
 * @GNUTLS_CTYPE_OURS: for requesting our certificate type values.
 * @GNUTLS_CTYPE_PEERS: for requesting the peers' certificate type values.
 *
 * Enumeration of certificate type targets with respect to asymmetric
 * certificate types as specified in RFC7250 and P2P connection set up
 * as specified in draft-vanrein-tls-symmetry-02.
 */
typedef enum {
	GNUTLS_CTYPE_CLIENT,
	GNUTLS_CTYPE_SERVER,
	GNUTLS_CTYPE_OURS,
	GNUTLS_CTYPE_PEERS
} gnutls_ctype_target_t;

/* If you want to change this, then also change the define in
 * gnutls_int.h, and recompile.
 */
typedef void *gnutls_transport_ptr_t;

struct gnutls_session_int;
typedef struct gnutls_session_int *gnutls_session_t;

struct gnutls_dh_params_int;
typedef struct gnutls_dh_params_int *gnutls_dh_params_t;

  /* XXX ugly. */
struct gnutls_x509_privkey_int;
typedef struct gnutls_x509_privkey_int *gnutls_rsa_params_t;

struct gnutls_priority_st;
typedef struct gnutls_priority_st *gnutls_priority_t;

typedef struct {
	unsigned char *data;
	unsigned int size;
} gnutls_datum_t;


typedef struct gnutls_params_st {
	gnutls_params_type_t type;
	union params {
		gnutls_dh_params_t dh;
		gnutls_rsa_params_t rsa_export;
	} params;
	int deinit;
} gnutls_params_st;

typedef int gnutls_params_function(gnutls_session_t, gnutls_params_type_t,
				   gnutls_params_st *);

/* internal functions */

int gnutls_init(gnutls_session_t * session, unsigned int flags);
void gnutls_deinit(gnutls_session_t session);
#define _gnutls_deinit(x) gnutls_deinit(x)

int gnutls_bye(gnutls_session_t session, gnutls_close_request_t how);

int gnutls_handshake(gnutls_session_t session);

int gnutls_reauth(gnutls_session_t session, unsigned int flags);

#define GNUTLS_DEFAULT_HANDSHAKE_TIMEOUT ((unsigned int)-1)
#define GNUTLS_INDEFINITE_TIMEOUT ((unsigned int)-2)
void gnutls_handshake_set_timeout(gnutls_session_t session,
				  unsigned int ms);
int gnutls_rehandshake(gnutls_session_t session);

#define GNUTLS_KU_PEER 1
int gnutls_session_key_update(gnutls_session_t session, unsigned flags);

gnutls_alert_description_t gnutls_alert_get(gnutls_session_t session);
int gnutls_alert_send(gnutls_session_t session,
		      gnutls_alert_level_t level,
		      gnutls_alert_description_t desc);
int gnutls_alert_send_appropriate(gnutls_session_t session, int err);
const char *gnutls_alert_get_name(gnutls_alert_description_t alert);
const char *gnutls_alert_get_strname(gnutls_alert_description_t alert);

gnutls_sec_param_t gnutls_pk_bits_to_sec_param(gnutls_pk_algorithm_t algo,
					       unsigned int bits);
const char *gnutls_sec_param_get_name(gnutls_sec_param_t param);
unsigned int gnutls_sec_param_to_pk_bits(gnutls_pk_algorithm_t algo,
					 gnutls_sec_param_t param);
unsigned int
	gnutls_sec_param_to_symmetric_bits(gnutls_sec_param_t param) __GNUTLS_CONST__;

/* Elliptic curves */
const char *
	gnutls_ecc_curve_get_name(gnutls_ecc_curve_t curve) __GNUTLS_CONST__;
const char *
	gnutls_ecc_curve_get_oid(gnutls_ecc_curve_t curve) __GNUTLS_CONST__;

const char *
	gnutls_group_get_name(gnutls_group_t group) __GNUTLS_CONST__;

int
	gnutls_ecc_curve_get_size(gnutls_ecc_curve_t curve) __GNUTLS_CONST__;
gnutls_ecc_curve_t gnutls_ecc_curve_get(gnutls_session_t session);

gnutls_group_t gnutls_group_get(gnutls_session_t session);

/* get information on the current session */
gnutls_cipher_algorithm_t gnutls_cipher_get(gnutls_session_t session);
gnutls_kx_algorithm_t gnutls_kx_get(gnutls_session_t session);
gnutls_mac_algorithm_t gnutls_mac_get(gnutls_session_t session);
gnutls_digest_algorithm_t gnutls_prf_hash_get(const gnutls_session_t session);
gnutls_certificate_type_t
gnutls_certificate_type_get(gnutls_session_t session);
gnutls_certificate_type_t
gnutls_certificate_type_get2(gnutls_session_t session,
								gnutls_ctype_target_t target);

int gnutls_sign_algorithm_get(gnutls_session_t session);
int gnutls_sign_algorithm_get_client(gnutls_session_t session);

int gnutls_sign_algorithm_get_requested(gnutls_session_t session,
					size_t indx,
					gnutls_sign_algorithm_t * algo);

/* the name of the specified algorithms */
const char *
	gnutls_cipher_get_name(gnutls_cipher_algorithm_t algorithm) __GNUTLS_CONST__;
const char *
	gnutls_mac_get_name(gnutls_mac_algorithm_t algorithm) __GNUTLS_CONST__;

const char *
	gnutls_digest_get_name(gnutls_digest_algorithm_t algorithm) __GNUTLS_CONST__;
const char *
	gnutls_digest_get_oid(gnutls_digest_algorithm_t algorithm) __GNUTLS_CONST__;

const char *
	gnutls_kx_get_name(gnutls_kx_algorithm_t algorithm) __GNUTLS_CONST__;
const char *
	gnutls_certificate_type_get_name(gnutls_certificate_type_t
					     type) __GNUTLS_CONST__;
const char *
	gnutls_pk_get_name(gnutls_pk_algorithm_t algorithm) __GNUTLS_CONST__;
const char *
	gnutls_pk_get_oid(gnutls_pk_algorithm_t algorithm) __GNUTLS_CONST__;

const char *
	gnutls_sign_get_name(gnutls_sign_algorithm_t algorithm) __GNUTLS_CONST__;

const char *gnutls_sign_get_oid(gnutls_sign_algorithm_t sign) __GNUTLS_CONST__;

const char *
	gnutls_gost_paramset_get_name(gnutls_gost_paramset_t param) __GNUTLS_CONST__;
const char *
	gnutls_gost_paramset_get_oid(gnutls_gost_paramset_t param) __GNUTLS_CONST__;

size_t
	gnutls_cipher_get_key_size(gnutls_cipher_algorithm_t algorithm) __GNUTLS_CONST__;
size_t
	gnutls_mac_get_key_size(gnutls_mac_algorithm_t algorithm) __GNUTLS_CONST__;

unsigned gnutls_sign_is_secure(gnutls_sign_algorithm_t algorithm) __GNUTLS_CONST__;

/* It is possible that a signature algorithm is ok to use for short-lived
 * data (e.g., to sign a TLS session), but not for data that are long-lived
 * like certificates. This flag is about checking the security of the algorithm
 * for long-lived data. */
#define GNUTLS_SIGN_FLAG_SECURE_FOR_CERTS 1
unsigned gnutls_sign_is_secure2(gnutls_sign_algorithm_t algorithm, unsigned int flags) __GNUTLS_CONST__;

gnutls_digest_algorithm_t
	gnutls_sign_get_hash_algorithm(gnutls_sign_algorithm_t sign) __GNUTLS_CONST__;
gnutls_pk_algorithm_t
	gnutls_sign_get_pk_algorithm(gnutls_sign_algorithm_t sign) __GNUTLS_CONST__;
gnutls_sign_algorithm_t
	gnutls_pk_to_sign(gnutls_pk_algorithm_t pk,
		  gnutls_digest_algorithm_t hash) __GNUTLS_CONST__;

unsigned
gnutls_sign_supports_pk_algorithm(gnutls_sign_algorithm_t sign, gnutls_pk_algorithm_t pk) __GNUTLS_CONST__;

#define gnutls_sign_algorithm_get_name gnutls_sign_get_name

gnutls_mac_algorithm_t gnutls_mac_get_id(const char *name) __GNUTLS_CONST__;
gnutls_digest_algorithm_t gnutls_digest_get_id(const char *name) __GNUTLS_CONST__;

gnutls_cipher_algorithm_t
	gnutls_cipher_get_id(const char *name) __GNUTLS_CONST__;

gnutls_kx_algorithm_t
	gnutls_kx_get_id(const char *name) __GNUTLS_CONST__;
gnutls_protocol_t
	gnutls_protocol_get_id(const char *name) __GNUTLS_CONST__;
gnutls_certificate_type_t
	gnutls_certificate_type_get_id(const char *name) __GNUTLS_CONST__;
gnutls_pk_algorithm_t
	gnutls_pk_get_id(const char *name) __GNUTLS_CONST__;
gnutls_sign_algorithm_t
	gnutls_sign_get_id(const char *name) __GNUTLS_CONST__;
gnutls_ecc_curve_t gnutls_ecc_curve_get_id(const char *name)  __GNUTLS_CONST__;
gnutls_pk_algorithm_t gnutls_ecc_curve_get_pk(gnutls_ecc_curve_t curve) __GNUTLS_CONST__;
gnutls_group_t gnutls_group_get_id(const char *name);

gnutls_digest_algorithm_t
	gnutls_oid_to_digest(const char *oid)  __GNUTLS_CONST__;
gnutls_mac_algorithm_t
	gnutls_oid_to_mac(const char *oid)  __GNUTLS_CONST__;
gnutls_pk_algorithm_t
	gnutls_oid_to_pk(const char *oid) __GNUTLS_CONST__;
gnutls_sign_algorithm_t
	gnutls_oid_to_sign(const char *oid) __GNUTLS_CONST__;
gnutls_ecc_curve_t
	gnutls_oid_to_ecc_curve(const char *oid) __GNUTLS_CONST__;
gnutls_gost_paramset_t
	gnutls_oid_to_gost_paramset(const char *oid) __GNUTLS_CONST__;

  /* list supported algorithms */
const gnutls_ecc_curve_t *
	gnutls_ecc_curve_list(void)  __GNUTLS_PURE__;
const gnutls_group_t *
	gnutls_group_list(void)  __GNUTLS_PURE__;
const gnutls_cipher_algorithm_t *
	gnutls_cipher_list(void) __GNUTLS_PURE__;
const gnutls_mac_algorithm_t *
	gnutls_mac_list(void) __GNUTLS_PURE__;
const gnutls_digest_algorithm_t *
	gnutls_digest_list(void) __GNUTLS_PURE__;
const gnutls_protocol_t *
	gnutls_protocol_list(void) __GNUTLS_PURE__;
const gnutls_certificate_type_t *
	gnutls_certificate_type_list(void) __GNUTLS_PURE__;
const gnutls_kx_algorithm_t *
	gnutls_kx_list(void) __GNUTLS_PURE__;
const gnutls_pk_algorithm_t *
	gnutls_pk_list(void) __GNUTLS_PURE__;
const gnutls_sign_algorithm_t *
	gnutls_sign_list(void) __GNUTLS_PURE__;
const char *
	gnutls_cipher_suite_info(size_t idx,
			         unsigned char *cs_id,
				 gnutls_kx_algorithm_t * kx,
				 gnutls_cipher_algorithm_t * cipher,
				 gnutls_mac_algorithm_t * mac,
				 gnutls_protocol_t * min_version);

  /* error functions */
int gnutls_error_is_fatal(int error) __GNUTLS_CONST__;
int gnutls_error_to_alert(int err, int *level);

void gnutls_perror(int error);
const char * gnutls_strerror(int error) __GNUTLS_CONST__;
const char * gnutls_strerror_name(int error) __GNUTLS_CONST__;

/* Semi-internal functions.
 */
void gnutls_handshake_set_private_extensions(gnutls_session_t session,
					     int allow);
int gnutls_handshake_set_random(gnutls_session_t session,
				const gnutls_datum_t * random);

gnutls_handshake_description_t
gnutls_handshake_get_last_out(gnutls_session_t session);
gnutls_handshake_description_t
gnutls_handshake_get_last_in(gnutls_session_t session);

/* Record layer functions.
 */
#define GNUTLS_HEARTBEAT_WAIT 1
int gnutls_heartbeat_ping(gnutls_session_t session, size_t data_size,
			  unsigned int max_tries, unsigned int flags);
int gnutls_heartbeat_pong(gnutls_session_t session, unsigned int flags);

void gnutls_record_set_timeout(gnutls_session_t session, unsigned int ms);
void gnutls_record_disable_padding(gnutls_session_t session);

void gnutls_record_cork(gnutls_session_t session);
#define GNUTLS_RECORD_WAIT 1
int gnutls_record_uncork(gnutls_session_t session, unsigned int flags);
size_t gnutls_record_discard_queued(gnutls_session_t session);

int
gnutls_record_get_state(gnutls_session_t session,
			unsigned read,
			gnutls_datum_t *mac_key,
			gnutls_datum_t *IV,
			gnutls_datum_t *cipher_key,
			unsigned char seq_number[8]);

int
gnutls_record_set_state(gnutls_session_t session,
			unsigned read,
			const unsigned char seq_number[8]);

typedef struct {
	size_t low;
	size_t high;
} gnutls_range_st;

int gnutls_range_split(gnutls_session_t session,
		       const gnutls_range_st * orig,
		       gnutls_range_st * small_range,
		       gnutls_range_st * rem_range);

ssize_t gnutls_record_send(gnutls_session_t session, const void *data,
			   size_t data_size);
ssize_t gnutls_record_send2(gnutls_session_t session, const void *data,
			    size_t data_size, size_t pad, unsigned flags);
ssize_t gnutls_record_send_range(gnutls_session_t session,
				 const void *data, size_t data_size,
				 const gnutls_range_st * range);
ssize_t gnutls_record_recv(gnutls_session_t session, void *data,
			   size_t data_size);

typedef struct mbuffer_st *gnutls_packet_t;

ssize_t
gnutls_record_recv_packet(gnutls_session_t session,
			  gnutls_packet_t *packet);

void gnutls_packet_get(gnutls_packet_t packet, gnutls_datum_t *data, unsigned char *sequence);
void gnutls_packet_deinit(gnutls_packet_t packet);

#define gnutls_read gnutls_record_recv
#define gnutls_write gnutls_record_send
ssize_t gnutls_record_recv_seq(gnutls_session_t session, void *data,
			       size_t data_size, unsigned char *seq);

size_t gnutls_record_overhead_size(gnutls_session_t session);

size_t
	gnutls_est_record_overhead_size(gnutls_protocol_t version,
				        gnutls_cipher_algorithm_t cipher,
				        gnutls_mac_algorithm_t mac,
				        gnutls_compression_method_t comp,
				        unsigned int flags) __GNUTLS_CONST__;

void gnutls_session_enable_compatibility_mode(gnutls_session_t session);
#define gnutls_record_set_max_empty_records(session, x)

unsigned gnutls_record_can_use_length_hiding(gnutls_session_t session);

int gnutls_record_get_direction(gnutls_session_t session);

size_t gnutls_record_get_max_size(gnutls_session_t session);
ssize_t gnutls_record_set_max_size(gnutls_session_t session, size_t size);
ssize_t gnutls_record_set_max_recv_size(gnutls_session_t session, size_t size);

size_t gnutls_record_check_pending(gnutls_session_t session);
size_t gnutls_record_check_corked(gnutls_session_t session);

size_t gnutls_record_get_max_early_data_size(gnutls_session_t session);
int gnutls_record_set_max_early_data_size(gnutls_session_t session, size_t size);
ssize_t gnutls_record_send_early_data(gnutls_session_t session,
				      const void *data,
				      size_t length);
ssize_t gnutls_record_recv_early_data(gnutls_session_t session,
				      void *data,
				      size_t data_size);

void gnutls_session_force_valid(gnutls_session_t session);

int gnutls_prf(gnutls_session_t session,
	       size_t label_size, const char *label,
	       int server_random_first,
	       size_t extra_size, const char *extra,
	       size_t outsize, char *out);
int gnutls_prf_rfc5705(gnutls_session_t session,
	       size_t label_size, const char *label,
	       size_t context_size, const char *context,
	       size_t outsize, char *out);
int gnutls_prf_early(gnutls_session_t session,
		     size_t label_size, const char *label,
		     size_t context_size, const char *context,
		     size_t outsize, char *out);

int gnutls_prf_raw(gnutls_session_t session,
		   size_t label_size, const char *label,
		   size_t seed_size, const char *seed,
		   size_t outsize, char *out);

/**
 * gnutls_server_name_type_t:
 * @GNUTLS_NAME_DNS: Domain Name System name type.
 *
 * Enumeration of different server name types.
 */
typedef enum {
	GNUTLS_NAME_DNS = 1
} gnutls_server_name_type_t;

int gnutls_server_name_set(gnutls_session_t session,
			   gnutls_server_name_type_t type,
			   const void *name, size_t name_length);

int gnutls_server_name_get(gnutls_session_t session,
			   void *data, size_t * data_length,
			   unsigned int *type, unsigned int indx);

unsigned int gnutls_heartbeat_get_timeout(gnutls_session_t session);
void gnutls_heartbeat_set_timeouts(gnutls_session_t session,
				   unsigned int retrans_timeout,
				   unsigned int total_timeout);

#define GNUTLS_HB_PEER_ALLOWED_TO_SEND (1)
#define GNUTLS_HB_PEER_NOT_ALLOWED_TO_SEND (1<<1)

  /* Heartbeat */
void gnutls_heartbeat_enable(gnutls_session_t session, unsigned int type);

#define GNUTLS_HB_LOCAL_ALLOWED_TO_SEND (1<<2)
unsigned gnutls_heartbeat_allowed(gnutls_session_t session, unsigned int type);

  /* Safe renegotiation */
unsigned gnutls_safe_renegotiation_status(gnutls_session_t session);
unsigned gnutls_session_ext_master_secret_status(gnutls_session_t session);
unsigned gnutls_session_etm_status(gnutls_session_t session);

/**
 * gnutls_session_flags_t:
 * @GNUTLS_SFLAGS_SAFE_RENEGOTIATION: Safe renegotiation (RFC5746) was used
 * @GNUTLS_SFLAGS_EXT_MASTER_SECRET: The extended master secret (RFC7627) extension was used
 * @GNUTLS_SFLAGS_ETM: The encrypt then MAC (RFC7366) extension was used
 * @GNUTLS_SFLAGS_RFC7919: The RFC7919 Diffie-Hellman parameters were negotiated
 * @GNUTLS_SFLAGS_HB_LOCAL_SEND: The heartbeat negotiation allows the local side to send heartbeat messages
 * @GNUTLS_SFLAGS_HB_PEER_SEND: The heartbeat negotiation allows the peer to send heartbeat messages
 * @GNUTLS_SFLAGS_FALSE_START: False start was used in this client session.
 * @GNUTLS_SFLAGS_SESSION_TICKET: A session ticket has been received by the server.
 * @GNUTLS_SFLAGS_POST_HANDSHAKE_AUTH: Indicates client capability for post-handshake auth; set only on server side.
 * @GNUTLS_SFLAGS_EARLY_START: The TLS1.3 server session returned early.
 * @GNUTLS_SFLAGS_EARLY_DATA: The TLS1.3 early data has been received by the server.
 * @GNUTLS_SFLAGS_CLI_REQUESTED_OCSP: Set when the client has requested OCSP staple during handshake.
 * @GNUTLS_SFLAGS_SERV_REQUESTED_OCSP: Set when the server has requested OCSP staple during handshake.
 *
 * Enumeration of different session parameters.
 */
typedef enum {
	GNUTLS_SFLAGS_SAFE_RENEGOTIATION = 1,
	GNUTLS_SFLAGS_EXT_MASTER_SECRET = 1<<1,
	GNUTLS_SFLAGS_ETM = 1<<2,
	GNUTLS_SFLAGS_HB_LOCAL_SEND = 1<<3,
	GNUTLS_SFLAGS_HB_PEER_SEND = 1<<4,
	GNUTLS_SFLAGS_FALSE_START = 1<<5,
	GNUTLS_SFLAGS_RFC7919 = 1<<6,
	GNUTLS_SFLAGS_SESSION_TICKET = 1<<7,
	GNUTLS_SFLAGS_POST_HANDSHAKE_AUTH = 1<<8,
	GNUTLS_SFLAGS_EARLY_START = 1<<9,
	GNUTLS_SFLAGS_EARLY_DATA = 1<<10,
	GNUTLS_SFLAGS_CLI_REQUESTED_OCSP = 1<<11,
	GNUTLS_SFLAGS_SERV_REQUESTED_OCSP = 1<<12
} gnutls_session_flags_t;

unsigned gnutls_session_get_flags(gnutls_session_t session);

/**
 * gnutls_supplemental_data_format_type_t:
 * @GNUTLS_SUPPLEMENTAL_UNKNOWN: Unknown data format
 *
 * Enumeration of different supplemental data types (RFC 4680).
 */
typedef enum {
	GNUTLS_SUPPLEMENTAL_UNKNOWN = 0,
} gnutls_supplemental_data_format_type_t;

const char
*gnutls_supplemental_get_name(gnutls_supplemental_data_format_type_t type);

  /* SessionTicket, RFC 5077. */
int gnutls_session_ticket_key_generate(gnutls_datum_t * key);
int gnutls_session_ticket_enable_client(gnutls_session_t session);
int gnutls_session_ticket_enable_server(gnutls_session_t session,
					const gnutls_datum_t * key);

int gnutls_session_ticket_send(gnutls_session_t session, unsigned nr, unsigned flags);

  /* SRTP, RFC 5764 */

/**
 * gnutls_srtp_profile_t:
 * @GNUTLS_SRTP_AES128_CM_HMAC_SHA1_80: 128 bit AES with a 80 bit HMAC-SHA1
 * @GNUTLS_SRTP_AES128_CM_HMAC_SHA1_32: 128 bit AES with a 32 bit HMAC-SHA1
 * @GNUTLS_SRTP_NULL_HMAC_SHA1_80: NULL cipher with a 80 bit HMAC-SHA1
 * @GNUTLS_SRTP_NULL_HMAC_SHA1_32: NULL cipher with a 32 bit HMAC-SHA1
 *
 * Enumeration of different SRTP protection profiles.
 */
typedef enum {
	GNUTLS_SRTP_AES128_CM_HMAC_SHA1_80 = 0x0001,
	GNUTLS_SRTP_AES128_CM_HMAC_SHA1_32 = 0x0002,
	GNUTLS_SRTP_NULL_HMAC_SHA1_80 = 0x0005,
	GNUTLS_SRTP_NULL_HMAC_SHA1_32 = 0x0006
} gnutls_srtp_profile_t;

int gnutls_srtp_set_profile(gnutls_session_t session,
			    gnutls_srtp_profile_t profile);
int gnutls_srtp_set_profile_direct(gnutls_session_t session,
				   const char *profiles,
				   const char **err_pos);
int gnutls_srtp_get_selected_profile(gnutls_session_t session,
				     gnutls_srtp_profile_t * profile);

const char *gnutls_srtp_get_profile_name(gnutls_srtp_profile_t profile);
int gnutls_srtp_get_profile_id(const char *name,
			       gnutls_srtp_profile_t * profile);
int gnutls_srtp_get_keys(gnutls_session_t session,
			 void *key_material,
			 unsigned int key_material_size,
			 gnutls_datum_t * client_key,
			 gnutls_datum_t * client_salt,
			 gnutls_datum_t * server_key,
			 gnutls_datum_t * server_salt);

int gnutls_srtp_set_mki(gnutls_session_t session,
			const gnutls_datum_t * mki);
int gnutls_srtp_get_mki(gnutls_session_t session, gnutls_datum_t * mki);

/* ALPN TLS extension */

/**
 * gnutls_alpn_flags_t:
 * @GNUTLS_ALPN_MANDATORY: Require ALPN negotiation. The connection will be
 *   aborted if no matching ALPN protocol is found.
 * @GNUTLS_ALPN_SERVER_PRECEDENCE: The choices set by the server
 *   will take precedence over the client's.
 *
 * Enumeration of different ALPN flags. These are used by gnutls_alpn_set_protocols().
 */
typedef enum {
	GNUTLS_ALPN_MANDATORY = 1,
	GNUTLS_ALPN_SERVER_PRECEDENCE = (1<<1)
} gnutls_alpn_flags_t;

#define GNUTLS_ALPN_MAND GNUTLS_ALPN_MANDATORY
int gnutls_alpn_get_selected_protocol(gnutls_session_t session,
				      gnutls_datum_t * protocol);
int gnutls_alpn_set_protocols(gnutls_session_t session,
			      const gnutls_datum_t * protocols,
			      unsigned protocols_size, unsigned flags);

int gnutls_key_generate(gnutls_datum_t * key, unsigned int key_size);


#define GNUTLS_PRIORITY_INIT_DEF_APPEND 1
int gnutls_priority_init(gnutls_priority_t * priority_cache,
			 const char *priorities, const char **err_pos);
int gnutls_priority_init2(gnutls_priority_t * priority_cache,
			  const char *priorities, const char **err_pos,
			  unsigned flags);
void gnutls_priority_deinit(gnutls_priority_t priority_cache);
int gnutls_priority_get_cipher_suite_index(gnutls_priority_t pcache,
					   unsigned int idx,
					   unsigned int *sidx);

#define GNUTLS_PRIORITY_LIST_INIT_KEYWORDS 1
#define GNUTLS_PRIORITY_LIST_SPECIAL 2
const char *
gnutls_priority_string_list(unsigned iter, unsigned int flags);

int gnutls_priority_set(gnutls_session_t session,
			gnutls_priority_t priority);

int gnutls_priority_set_direct(gnutls_session_t session,
			       const char *priorities,
			       const char **err_pos);

int gnutls_priority_certificate_type_list(gnutls_priority_t pcache,
					  const unsigned int **list);
int gnutls_priority_certificate_type_list2(gnutls_priority_t pcache,
					  const unsigned int **list,
					  gnutls_ctype_target_t target);
int gnutls_priority_sign_list(gnutls_priority_t pcache,
			      const unsigned int **list);
int gnutls_priority_protocol_list(gnutls_priority_t pcache,
				  const unsigned int **list);
int gnutls_priority_ecc_curve_list(gnutls_priority_t pcache,
				   const unsigned int **list);
int
gnutls_priority_group_list(gnutls_priority_t pcache,
			   const unsigned int **list);

int gnutls_priority_kx_list(gnutls_priority_t pcache,
			    const unsigned int **list);
int gnutls_priority_cipher_list(gnutls_priority_t pcache,
				const unsigned int **list);
int gnutls_priority_mac_list(gnutls_priority_t pcache,
			     const unsigned int **list);

const char *gnutls_get_system_config_file(void);

int gnutls_set_default_priority(gnutls_session_t session);
int gnutls_set_default_priority_append(gnutls_session_t session,
				       const char *add_prio,
				       const char **err_pos,
				       unsigned flags);

/* Returns the name of a cipher suite */
const char *
	gnutls_cipher_suite_get_name(gnutls_kx_algorithm_t kx_algorithm,
				     gnutls_cipher_algorithm_t cipher_algorithm,
				     gnutls_mac_algorithm_t mac_algorithm) __GNUTLS_CONST__;

/* get the currently used protocol version */
gnutls_protocol_t gnutls_protocol_get_version(gnutls_session_t session);

const char *
	gnutls_protocol_get_name(gnutls_protocol_t version) __GNUTLS_CONST__;


/* get/set session
 */
int gnutls_session_set_data(gnutls_session_t session,
			    const void *session_data,
			    size_t session_data_size);
int gnutls_session_get_data(gnutls_session_t session, void *session_data,
			    size_t * session_data_size);
int gnutls_session_get_data2(gnutls_session_t session,
			     gnutls_datum_t * data);
void gnutls_session_get_random(gnutls_session_t session,
			       gnutls_datum_t * client,
			       gnutls_datum_t * server);

void gnutls_session_get_master_secret(gnutls_session_t session,
			              gnutls_datum_t * secret);

char *gnutls_session_get_desc(gnutls_session_t session);

typedef int gnutls_certificate_verify_function(gnutls_session_t);
void gnutls_session_set_verify_function(gnutls_session_t session, gnutls_certificate_verify_function * func);

/**
 * gnutls_vdata_types_t:
 * @GNUTLS_DT_UNKNOWN: Unknown data type.
 * @GNUTLS_DT_DNS_HOSTNAME: The data contain a null-terminated DNS hostname; the hostname will be 
 *   matched using the RFC6125 rules. If the data contain a textual IP (v4 or v6) address it will
 *   be marched against the IPAddress Alternative name, unless the verification flag %GNUTLS_VERIFY_DO_NOT_ALLOW_IP_MATCHES
 *   is specified.
 * @GNUTLS_DT_IP_ADDRESS: The data contain a raw IP address (4 or 16 bytes). If will be matched
 *   against the IPAddress Alternative name; option available since 3.6.0.
 * @GNUTLS_DT_RFC822NAME: The data contain a null-terminated email address; the email will be
 *   matched against the RFC822Name Alternative name of the certificate, or the EMAIL DN component if the
 *   former isn't available. Prior to matching the email address will be converted to ACE
 *   (ASCII-compatible-encoding).
 * @GNUTLS_DT_KEY_PURPOSE_OID: The data contain a null-terminated key purpose OID. It will be matched
 *   against the certificate's Extended Key Usage extension.
 *
 * Enumeration of different typed-data options. They are used as input to certificate
 * verification functions to provide information about the name and purpose of the
 * certificate. Only a single option of a type can be provided to the relevant functions
 * (i.e., options %GNUTLS_DT_DNS_HOSTNAME, %GNUTLS_DT_IP_ADDRESS and
 * %GNUTLS_DT_RFC822NAME cannot be combined).
 */
typedef enum {
	GNUTLS_DT_UNKNOWN = 0,
	GNUTLS_DT_DNS_HOSTNAME = 1,
	GNUTLS_DT_KEY_PURPOSE_OID = 2,
	GNUTLS_DT_RFC822NAME = 3,
	GNUTLS_DT_IP_ADDRESS = 4
} gnutls_vdata_types_t;

typedef struct {
	gnutls_vdata_types_t type;
	unsigned char *data;
	unsigned int size;
} gnutls_typed_vdata_st;

void gnutls_session_set_verify_cert(gnutls_session_t session,
			       const char *hostname, unsigned flags);

void
gnutls_session_set_verify_cert2(gnutls_session_t session,
				gnutls_typed_vdata_st * data,
				unsigned elements, unsigned flags);

unsigned int gnutls_session_get_verify_cert_status(gnutls_session_t);

int gnutls_session_set_premaster(gnutls_session_t session,
				 unsigned int entity,
				 gnutls_protocol_t version,
				 gnutls_kx_algorithm_t kx,
				 gnutls_cipher_algorithm_t cipher,
				 gnutls_mac_algorithm_t mac,
				 gnutls_compression_method_t comp,
				 const gnutls_datum_t * master,
				 const gnutls_datum_t * session_id);

/* returns the session ID */
#define GNUTLS_MAX_SESSION_ID 32
int gnutls_session_get_id(gnutls_session_t session, void *session_id,
			  size_t * session_id_size);
int gnutls_session_get_id2(gnutls_session_t session,
			   gnutls_datum_t * session_id);

int gnutls_session_set_id(gnutls_session_t session,
			  const gnutls_datum_t * sid);

int gnutls_session_channel_binding(gnutls_session_t session,
				   gnutls_channel_binding_t cbtype,
				   gnutls_datum_t * cb);

/* checks if this session is a resumed one
 */
int gnutls_session_is_resumed(gnutls_session_t session);
int gnutls_session_resumption_requested(gnutls_session_t session);

typedef int (*gnutls_db_store_func) (void *, gnutls_datum_t key,
				     gnutls_datum_t data);
typedef int (*gnutls_db_remove_func) (void *, gnutls_datum_t key);
typedef gnutls_datum_t(*gnutls_db_retr_func) (void *, gnutls_datum_t key);

void gnutls_db_set_cache_expiration(gnutls_session_t session, int seconds);
unsigned gnutls_db_get_default_cache_expiration(void);

void gnutls_db_remove_session(gnutls_session_t session);
void gnutls_db_set_retrieve_function(gnutls_session_t session,
				     gnutls_db_retr_func retr_func);
void gnutls_db_set_remove_function(gnutls_session_t session,
				   gnutls_db_remove_func rem_func);
void gnutls_db_set_store_function(gnutls_session_t session,
				  gnutls_db_store_func store_func);
void gnutls_db_set_ptr(gnutls_session_t session, void *ptr);
void *gnutls_db_get_ptr(gnutls_session_t session);
int gnutls_db_check_entry(gnutls_session_t session,
			  gnutls_datum_t session_entry);
time_t gnutls_db_check_entry_time(gnutls_datum_t * entry);
time_t gnutls_db_check_entry_expire_time(gnutls_datum_t * entry);

  /**
   * gnutls_handshake_hook_func:
   * @session: the current session
   * @htype: the type of the handshake message (%gnutls_handshake_description_t)
   * @when: non zero if this is a post-process/generation call and zero otherwise
   * @incoming: non zero if this is an incoming message and zero if this is an outgoing message
   * @msg: the (const) data of the handshake message without the handshake headers.
   *
   * Function prototype for handshake hooks. It is set using
   * gnutls_handshake_set_hook_function().
   *
   * Returns: Non zero on error.
   */
#define GNUTLS_HOOK_POST (1)
#define GNUTLS_HOOK_PRE (0)
#define GNUTLS_HOOK_BOTH (-1)

typedef int (*gnutls_handshake_hook_func) (gnutls_session_t,
					   unsigned int htype,
					   unsigned when,
					   unsigned int incoming,
					   const gnutls_datum_t *msg);
void gnutls_handshake_set_hook_function(gnutls_session_t session,
					unsigned int htype, int when,
					gnutls_handshake_hook_func func);

#define gnutls_handshake_post_client_hello_func gnutls_handshake_simple_hook_func
typedef int (*gnutls_handshake_simple_hook_func) (gnutls_session_t);
void
gnutls_handshake_set_post_client_hello_function(gnutls_session_t session,
						gnutls_handshake_simple_hook_func func);

void gnutls_handshake_set_max_packet_length(gnutls_session_t session,
					    size_t max);

/* returns libgnutls version (call it with a NULL argument)
 */
const char * gnutls_check_version(const char *req_version) __GNUTLS_CONST__;

/* A macro which will allow optimizing out calls to gnutls_check_version()
 * when the version being compiled with is sufficient.
 * Used as:
 *   if (gnutls_check_version_numerc(3,3,16)) {
 */
#define gnutls_check_version_numeric(a,b,c) \
	((GNUTLS_VERSION_MAJOR >= (a)) &&  \
	 ((GNUTLS_VERSION_NUMBER >= ( ((a) << 16) + ((b) << 8) + (c) )) || \
	 gnutls_check_version(#a "." #b "." #c)))

/* Functions for setting/clearing credentials
 */
void gnutls_credentials_clear(gnutls_session_t session);

/* cred is a structure defined by the kx algorithm
 */
int gnutls_credentials_set(gnutls_session_t session,
			   gnutls_credentials_type_t type, void *cred);
int gnutls_credentials_get(gnutls_session_t session,
			   gnutls_credentials_type_t type, void **cred);
#define gnutls_cred_set	gnutls_credentials_set

/* x.509 types */

struct gnutls_pubkey_st;
typedef struct gnutls_pubkey_st *gnutls_pubkey_t;

struct gnutls_privkey_st;
typedef struct gnutls_privkey_st *gnutls_privkey_t;

struct gnutls_x509_privkey_int;
typedef struct gnutls_x509_privkey_int *gnutls_x509_privkey_t;

struct gnutls_x509_crl_int;
typedef struct gnutls_x509_crl_int *gnutls_x509_crl_t;

struct gnutls_x509_crt_int;
typedef struct gnutls_x509_crt_int *gnutls_x509_crt_t;

struct gnutls_x509_crq_int;
typedef struct gnutls_x509_crq_int *gnutls_x509_crq_t;

struct gnutls_openpgp_keyring_int;
typedef struct gnutls_openpgp_keyring_int *gnutls_openpgp_keyring_t;


/* Credential structures - used in gnutls_credentials_set(); */

struct gnutls_certificate_credentials_st;
typedef struct gnutls_certificate_credentials_st
*gnutls_certificate_credentials_t;
typedef gnutls_certificate_credentials_t
    gnutls_certificate_server_credentials;
typedef gnutls_certificate_credentials_t
    gnutls_certificate_client_credentials;

typedef struct gnutls_anon_server_credentials_st
*gnutls_anon_server_credentials_t;
typedef struct gnutls_anon_client_credentials_st
*gnutls_anon_client_credentials_t;

void gnutls_anon_free_server_credentials(gnutls_anon_server_credentials_t
					 sc);
int
gnutls_anon_allocate_server_credentials(gnutls_anon_server_credentials_t
					* sc);

void gnutls_anon_set_server_dh_params(gnutls_anon_server_credentials_t res,
				      gnutls_dh_params_t dh_params);

int
gnutls_anon_set_server_known_dh_params(gnutls_anon_server_credentials_t res,
					gnutls_sec_param_t sec_param);

void
gnutls_anon_set_server_params_function(gnutls_anon_server_credentials_t
				       res, gnutls_params_function * func);

void
gnutls_anon_free_client_credentials(gnutls_anon_client_credentials_t sc);
int
gnutls_anon_allocate_client_credentials(gnutls_anon_client_credentials_t
					* sc);

/* CERTFILE is an x509 certificate in PEM form.
 * KEYFILE is a pkcs-1 private key in PEM form (for RSA keys).
 */
void
gnutls_certificate_free_credentials(gnutls_certificate_credentials_t sc);
int
gnutls_certificate_allocate_credentials(gnutls_certificate_credentials_t
					* res);

int
gnutls_certificate_get_issuer(gnutls_certificate_credentials_t sc,
			      gnutls_x509_crt_t cert,
			      gnutls_x509_crt_t * issuer,
			      unsigned int flags);

int gnutls_certificate_get_crt_raw(gnutls_certificate_credentials_t sc,
				   unsigned idx1, unsigned idx2,
				   gnutls_datum_t * cert);

void gnutls_certificate_free_keys(gnutls_certificate_credentials_t sc);
void gnutls_certificate_free_cas(gnutls_certificate_credentials_t sc);
void gnutls_certificate_free_ca_names(gnutls_certificate_credentials_t sc);
void gnutls_certificate_free_crls(gnutls_certificate_credentials_t sc);

void gnutls_certificate_set_dh_params(gnutls_certificate_credentials_t res,
				      gnutls_dh_params_t dh_params);

int gnutls_certificate_set_known_dh_params(gnutls_certificate_credentials_t res,
					   gnutls_sec_param_t sec_param);
void gnutls_certificate_set_verify_flags(gnutls_certificate_credentials_t
					 res, unsigned int flags);
unsigned int
gnutls_certificate_get_verify_flags(gnutls_certificate_credentials_t res);

/**
 * gnutls_certificate_flags:
 * @GNUTLS_CERTIFICATE_SKIP_KEY_CERT_MATCH: Skip the key and certificate matching check.
 * @GNUTLS_CERTIFICATE_API_V2: If set the gnutls_certificate_set_*key* functions will return an index of the added key pair instead of zero.
 * @GNUTLS_CERTIFICATE_SKIP_OCSP_RESPONSE_CHECK: If set, the gnutls_certificate_set_ocsp_status_request_file
 *    function, will not check whether the response set matches any of the certificates.
 * @GNUTLS_CERTIFICATE_VERIFY_CRLS: This will enable CRL verification when added in the certificate structure.
 *    When used, it requires CAs to be added before CRLs.
 *
 * Enumeration of different certificate credentials flags.
 */
typedef enum gnutls_certificate_flags {
	GNUTLS_CERTIFICATE_SKIP_KEY_CERT_MATCH = 1,
	GNUTLS_CERTIFICATE_API_V2 = (1<<1),
	GNUTLS_CERTIFICATE_SKIP_OCSP_RESPONSE_CHECK = (1<<2),
	GNUTLS_CERTIFICATE_VERIFY_CRLS = (1<<3)
} gnutls_certificate_flags;

void gnutls_certificate_set_flags(gnutls_certificate_credentials_t,
				  unsigned flags);

void gnutls_certificate_set_verify_limits(gnutls_certificate_credentials_t
					  res, unsigned int max_bits,
					  unsigned int max_depth);

int
gnutls_certificate_set_x509_system_trust(gnutls_certificate_credentials_t
					 cred);

int
gnutls_certificate_set_x509_trust_file(gnutls_certificate_credentials_t
				       cred, const char *cafile,
				       gnutls_x509_crt_fmt_t type);
int
gnutls_certificate_set_x509_trust_dir(gnutls_certificate_credentials_t cred,
				      const char *ca_dir,
				      gnutls_x509_crt_fmt_t type);

int gnutls_certificate_set_x509_trust_mem(gnutls_certificate_credentials_t
					  res, const gnutls_datum_t * ca,
					  gnutls_x509_crt_fmt_t type);

int
gnutls_certificate_set_x509_crl_file(gnutls_certificate_credentials_t
				     res, const char *crlfile,
				     gnutls_x509_crt_fmt_t type);
int gnutls_certificate_set_x509_crl_mem(gnutls_certificate_credentials_t
					res, const gnutls_datum_t * CRL,
					gnutls_x509_crt_fmt_t type);

int
gnutls_certificate_set_x509_key_file(gnutls_certificate_credentials_t
				     res, const char *certfile,
				     const char *keyfile,
				     gnutls_x509_crt_fmt_t type);

int
gnutls_certificate_set_x509_key_file2(gnutls_certificate_credentials_t
				      res, const char *certfile,
				      const char *keyfile,
				      gnutls_x509_crt_fmt_t type,
				      const char *pass,
				      unsigned int flags);

int gnutls_certificate_set_x509_key_mem(gnutls_certificate_credentials_t
					res, const gnutls_datum_t * cert,
					const gnutls_datum_t * key,
					gnutls_x509_crt_fmt_t type);

int gnutls_certificate_set_x509_key_mem2(gnutls_certificate_credentials_t
					 res, const gnutls_datum_t * cert,
					 const gnutls_datum_t * key,
					 gnutls_x509_crt_fmt_t type,
					 const char *pass,
					 unsigned int flags);

void gnutls_certificate_send_x509_rdn_sequence(gnutls_session_t session,
					       int status);

int
gnutls_certificate_set_x509_simple_pkcs12_file
(gnutls_certificate_credentials_t res, const char *pkcs12file,
 gnutls_x509_crt_fmt_t type, const char *password);
int
gnutls_certificate_set_x509_simple_pkcs12_mem
(gnutls_certificate_credentials_t res, const gnutls_datum_t * p12blob,
 gnutls_x509_crt_fmt_t type, const char *password);

/* New functions to allow setting already parsed X.509 stuff.
 */

int gnutls_certificate_set_x509_key(gnutls_certificate_credentials_t res,
				    gnutls_x509_crt_t * cert_list,
				    int cert_list_size,
				    gnutls_x509_privkey_t key);
int gnutls_certificate_set_x509_trust(gnutls_certificate_credentials_t res,
				      gnutls_x509_crt_t * ca_list,
				      int ca_list_size);
int gnutls_certificate_set_x509_crl(gnutls_certificate_credentials_t res,
				    gnutls_x509_crl_t * crl_list,
				    int crl_list_size);

int gnutls_certificate_get_x509_key(gnutls_certificate_credentials_t res,
                                    unsigned index,
                                    gnutls_x509_privkey_t *key);
int gnutls_certificate_get_x509_crt(gnutls_certificate_credentials_t res,
                                    unsigned index,
                                    gnutls_x509_crt_t **crt_list,
                                    unsigned *crt_list_size);

  /* OCSP status request extension, RFC 6066 */
typedef int (*gnutls_status_request_ocsp_func)
 (gnutls_session_t session, void *ptr, gnutls_datum_t *ocsp_response);

void
gnutls_certificate_set_ocsp_status_request_function
(gnutls_certificate_credentials_t res,
gnutls_status_request_ocsp_func ocsp_func, void *ptr);

int
gnutls_certificate_set_ocsp_status_request_function2
(gnutls_certificate_credentials_t res, unsigned idx,
gnutls_status_request_ocsp_func ocsp_func, void *ptr);

int
gnutls_certificate_set_ocsp_status_request_file
(gnutls_certificate_credentials_t res, const char *response_file,
 unsigned idx);

int
gnutls_certificate_set_ocsp_status_request_file2
(gnutls_certificate_credentials_t res, const char *response_file,
 unsigned idx, gnutls_x509_crt_fmt_t fmt);

int
gnutls_certificate_set_ocsp_status_request_mem
(gnutls_certificate_credentials_t res, const gnutls_datum_t *resp,
 unsigned idx, gnutls_x509_crt_fmt_t fmt);

typedef struct gnutls_ocsp_data_st {
	unsigned int version; /* must be zero */
	gnutls_datum_t response;
	time_t exptime;
	unsigned char padding[32];
} gnutls_ocsp_data_st;

time_t
gnutls_certificate_get_ocsp_expiration(gnutls_certificate_credentials_t sc,
				       unsigned idx,
				       int oidx,
				       unsigned flags);

int gnutls_ocsp_status_request_enable_client(gnutls_session_t session,
					     gnutls_datum_t * responder_id,
					     size_t responder_id_size,
					     gnutls_datum_t *
					     request_extensions);

int gnutls_ocsp_status_request_get(gnutls_session_t session,
				   gnutls_datum_t * response);

#define GNUTLS_OCSP_SR_IS_AVAIL 1
unsigned gnutls_ocsp_status_request_is_checked(gnutls_session_t session,
					       unsigned int flags);

int
gnutls_ocsp_status_request_get2(gnutls_session_t session,
			        unsigned idx,
			        gnutls_datum_t * response);

/* RAW public key functions (RFC7250) */
int gnutls_certificate_set_rawpk_key_mem(gnutls_certificate_credentials_t cred,
				    const gnutls_datum_t* spki,
				    const gnutls_datum_t* pkey,
				    gnutls_x509_crt_fmt_t format,
				    const char* pass,
				    unsigned int key_usage,
				    const char **names,
				    unsigned int names_length,
				    unsigned int flags);

int gnutls_certificate_set_rawpk_key_file(gnutls_certificate_credentials_t cred,
				      const char* rawpkfile,
				      const char* privkeyfile,
				      gnutls_x509_crt_fmt_t format,
				      const char *pass,
				      unsigned int key_usage,
				      const char **names,
				      unsigned int names_length,
				      unsigned int privkey_flags,
				      unsigned int pkcs11_flags);


/* global state functions
 */
int gnutls_global_init(void);
void gnutls_global_deinit(void);

  /**
   * gnutls_time_func:
   * @t: where to store time.
   *
   * Function prototype for time()-like function.  Set with
   * gnutls_global_set_time_function().
   *
   * Returns: Number of seconds since the epoch, or (time_t)-1 on errors.
   */
typedef time_t(*gnutls_time_func) (time_t * t);

typedef int (*mutex_init_func) (void **mutex);
typedef int (*mutex_lock_func) (void **mutex);
typedef int (*mutex_unlock_func) (void **mutex);
typedef int (*mutex_deinit_func) (void **mutex);

void gnutls_global_set_mutex(mutex_init_func init,
			     mutex_deinit_func deinit,
			     mutex_lock_func lock,
			     mutex_unlock_func unlock);

typedef void *(*gnutls_alloc_function) (size_t);
typedef void *(*gnutls_calloc_function) (size_t, size_t);
typedef int (*gnutls_is_secure_function) (const void *);
typedef void (*gnutls_free_function) (void *);
typedef void *(*gnutls_realloc_function) (void *, size_t);

void gnutls_global_set_time_function(gnutls_time_func time_func);

/* For use in callbacks */
extern _SYM_EXPORT gnutls_alloc_function gnutls_malloc;
extern _SYM_EXPORT gnutls_realloc_function gnutls_realloc;
extern _SYM_EXPORT gnutls_calloc_function gnutls_calloc;
extern _SYM_EXPORT gnutls_free_function gnutls_free;

#ifdef GNUTLS_INTERNAL_BUILD
#define gnutls_free(a) gnutls_free((void *) (a)), a=NULL
#endif

extern _SYM_EXPORT char *(*gnutls_strdup) (const char *);

/* a variant of memset that doesn't get optimized out */
void gnutls_memset(void *data, int c, size_t size);

/* constant time memcmp */
int gnutls_memcmp(const void *s1, const void *s2, size_t n);

typedef void (*gnutls_log_func) (int, const char *);
typedef void (*gnutls_audit_log_func) (gnutls_session_t, const char *);
void gnutls_global_set_log_function(gnutls_log_func log_func);
void gnutls_global_set_audit_log_function(gnutls_audit_log_func log_func);
void gnutls_global_set_log_level(int level);

  /**
   * gnutls_keylog_func:
   * @session: the current session
   * @label: the keylog label
   * @secret: the (const) data of the derived secret.
   *
   * Function prototype for keylog hooks. It is set using
   * gnutls_session_set_keylog_function().
   *
   * Returns: Non zero on error.
   * Since: 3.6.13
   */
typedef int (*gnutls_keylog_func) (gnutls_session_t session,
				   const char *label,
				   const gnutls_datum_t *secret);
gnutls_keylog_func gnutls_session_get_keylog_function(const gnutls_session_t session);
void gnutls_session_set_keylog_function(gnutls_session_t session,
					gnutls_keylog_func func);

/* Diffie-Hellman parameter handling.
 */
int gnutls_dh_params_init(gnutls_dh_params_t * dh_params);
void gnutls_dh_params_deinit(gnutls_dh_params_t dh_params);
int gnutls_dh_params_import_raw(gnutls_dh_params_t dh_params,
				const gnutls_datum_t * prime,
				const gnutls_datum_t * generator);
int gnutls_dh_params_import_dsa(gnutls_dh_params_t dh_params, gnutls_x509_privkey_t key);
int gnutls_dh_params_import_raw2(gnutls_dh_params_t dh_params,
				 const gnutls_datum_t * prime,
				 const gnutls_datum_t * generator,
				 unsigned key_bits);
int gnutls_dh_params_import_raw3(gnutls_dh_params_t dh_params,
				 const gnutls_datum_t * prime,
				 const gnutls_datum_t * q,
				 const gnutls_datum_t * generator);
int gnutls_dh_params_import_pkcs3(gnutls_dh_params_t params,
				  const gnutls_datum_t * pkcs3_params,
				  gnutls_x509_crt_fmt_t format);
int gnutls_dh_params_generate2(gnutls_dh_params_t params,
			       unsigned int bits);
int gnutls_dh_params_export_pkcs3(gnutls_dh_params_t params,
				  gnutls_x509_crt_fmt_t format,
				  unsigned char *params_data,
				  size_t * params_data_size);
int gnutls_dh_params_export2_pkcs3(gnutls_dh_params_t params,
				   gnutls_x509_crt_fmt_t format,
				   gnutls_datum_t * out);
int gnutls_dh_params_export_raw(gnutls_dh_params_t params,
				gnutls_datum_t * prime,
				gnutls_datum_t * generator,
				unsigned int *bits);
int gnutls_dh_params_cpy(gnutls_dh_params_t dst, gnutls_dh_params_t src);



/* Session stuff
 */
#include <sys/uio.h>
typedef struct iovec giovec_t;

typedef ssize_t(*gnutls_pull_func) (gnutls_transport_ptr_t, void *,
				    size_t);
typedef ssize_t(*gnutls_push_func) (gnutls_transport_ptr_t, const void *,
				    size_t);

int gnutls_system_recv_timeout(gnutls_transport_ptr_t ptr, unsigned int ms);
typedef int (*gnutls_pull_timeout_func) (gnutls_transport_ptr_t,
					 unsigned int ms);

typedef ssize_t(*gnutls_vec_push_func) (gnutls_transport_ptr_t,
					const giovec_t * iov, int iovcnt);

typedef int (*gnutls_errno_func) (gnutls_transport_ptr_t);

#if 0
 /* This will be defined as macro. */
  void gnutls_transport_set_int (gnutls_session_t session, int r);
#endif

void gnutls_transport_set_int2(gnutls_session_t session, int r, int s);
#define gnutls_transport_set_int(s, i) gnutls_transport_set_int2(s, i, i)

void gnutls_transport_get_int2(gnutls_session_t session, int *r, int *s);
int gnutls_transport_get_int(gnutls_session_t session);

void gnutls_transport_set_ptr(gnutls_session_t session,
			      gnutls_transport_ptr_t ptr);
void gnutls_transport_set_ptr2(gnutls_session_t session,
			       gnutls_transport_ptr_t recv_ptr,
			       gnutls_transport_ptr_t send_ptr);

gnutls_transport_ptr_t gnutls_transport_get_ptr(gnutls_session_t session);
void gnutls_transport_get_ptr2(gnutls_session_t session,
			       gnutls_transport_ptr_t * recv_ptr,
			       gnutls_transport_ptr_t * send_ptr);

void gnutls_transport_set_vec_push_function(gnutls_session_t session,
					    gnutls_vec_push_func vec_func);
void gnutls_transport_set_push_function(gnutls_session_t session,
					gnutls_push_func push_func);
void gnutls_transport_set_pull_function(gnutls_session_t session,
					gnutls_pull_func pull_func);

void gnutls_transport_set_pull_timeout_function(gnutls_session_t session,
						gnutls_pull_timeout_func
						func);

void gnutls_transport_set_errno_function(gnutls_session_t session,
					 gnutls_errno_func errno_func);

void gnutls_transport_set_errno(gnutls_session_t session, int err);

/* session specific
 */
void gnutls_session_set_ptr(gnutls_session_t session, void *ptr);
void *gnutls_session_get_ptr(gnutls_session_t session);

void gnutls_openpgp_send_cert(gnutls_session_t session,
			      gnutls_openpgp_crt_status_t status);

/* This function returns the hash of the given data.
 */
int gnutls_fingerprint(gnutls_digest_algorithm_t algo,
		       const gnutls_datum_t * data, void *result,
		       size_t * result_size);

  /**
   * gnutls_random_art_t:
   * @GNUTLS_RANDOM_ART_OPENSSH: OpenSSH-style random art.
   *
   * Enumeration of different random art types.
   */
typedef enum gnutls_random_art {
	GNUTLS_RANDOM_ART_OPENSSH = 1
} gnutls_random_art_t;

int gnutls_random_art(gnutls_random_art_t type,
		      const char *key_type, unsigned int key_size,
		      void *fpr, size_t fpr_size, gnutls_datum_t * art);

/* IDNA */
#define GNUTLS_IDNA_FORCE_2008 (1<<1)
int gnutls_idna_map(const char * input, unsigned ilen, gnutls_datum_t *out, unsigned flags);
int gnutls_idna_reverse_map(const char *input, unsigned ilen, gnutls_datum_t *out, unsigned flags);

/* SRP
 */

typedef struct gnutls_srp_server_credentials_st
*gnutls_srp_server_credentials_t;
typedef struct gnutls_srp_client_credentials_st
*gnutls_srp_client_credentials_t;

void
gnutls_srp_free_client_credentials(gnutls_srp_client_credentials_t sc);
int
gnutls_srp_allocate_client_credentials(gnutls_srp_client_credentials_t *
				       sc);
int gnutls_srp_set_client_credentials(gnutls_srp_client_credentials_t res,
				      const char *username,
				      const char *password);

void
gnutls_srp_free_server_credentials(gnutls_srp_server_credentials_t sc);
int
gnutls_srp_allocate_server_credentials(gnutls_srp_server_credentials_t *
				       sc);
int gnutls_srp_set_server_credentials_file(gnutls_srp_server_credentials_t
					   res, const char *password_file,
					   const char *password_conf_file);

const char *gnutls_srp_server_get_username(gnutls_session_t session);

void gnutls_srp_set_prime_bits(gnutls_session_t session,
                               unsigned int bits);

int gnutls_srp_verifier(const char *username,
			const char *password,
			const gnutls_datum_t * salt,
			const gnutls_datum_t * generator,
			const gnutls_datum_t * prime,
			gnutls_datum_t * res);

/* The static parameters defined in draft-ietf-tls-srp-05
 * Those should be used as input to gnutls_srp_verifier().
 */
extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_8192_group_prime;
extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_8192_group_generator;

extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_4096_group_prime;
extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_4096_group_generator;

extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_3072_group_prime;
extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_3072_group_generator;

extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_2048_group_prime;
extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_2048_group_generator;

extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_1536_group_prime;
extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_1536_group_generator;

extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_1024_group_prime;
extern _SYM_EXPORT const gnutls_datum_t gnutls_srp_1024_group_generator;

/* The static parameters defined in rfc7919
 */

extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_8192_group_prime;
extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_8192_group_q;
extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_8192_group_generator;
extern _SYM_EXPORT const unsigned int gnutls_ffdhe_8192_key_bits;

extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_6144_group_prime;
extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_6144_group_q;
extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_6144_group_generator;
extern _SYM_EXPORT const unsigned int gnutls_ffdhe_6144_key_bits;

extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_4096_group_prime;
extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_4096_group_q;
extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_4096_group_generator;
extern _SYM_EXPORT const unsigned int gnutls_ffdhe_4096_key_bits;

extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_3072_group_prime;
extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_3072_group_q;
extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_3072_group_generator;
extern _SYM_EXPORT const unsigned int gnutls_ffdhe_3072_key_bits;

extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_2048_group_prime;
extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_2048_group_q;
extern _SYM_EXPORT const gnutls_datum_t gnutls_ffdhe_2048_group_generator;
extern _SYM_EXPORT const unsigned int gnutls_ffdhe_2048_key_bits;

typedef int gnutls_srp_server_credentials_function(gnutls_session_t,
						   const char *username,
						   gnutls_datum_t * salt,
						   gnutls_datum_t *
						   verifier,
						   gnutls_datum_t *
						   generator,
						   gnutls_datum_t * prime);
void
gnutls_srp_set_server_credentials_function(gnutls_srp_server_credentials_t
					   cred,
					   gnutls_srp_server_credentials_function
					   * func);

typedef int gnutls_srp_client_credentials_function(gnutls_session_t,
						   char **, char **);
void
gnutls_srp_set_client_credentials_function(gnutls_srp_client_credentials_t
					   cred,
					   gnutls_srp_client_credentials_function
					   * func);

int gnutls_srp_base64_encode(const gnutls_datum_t * data, char *result,
			     size_t * result_size);
int gnutls_srp_base64_encode2(const gnutls_datum_t * data,
				   gnutls_datum_t * result);

int gnutls_srp_base64_decode(const gnutls_datum_t * b64_data, char *result,
			     size_t * result_size);
int gnutls_srp_base64_decode2(const gnutls_datum_t * b64_data,
				   gnutls_datum_t * result);

#define gnutls_srp_base64_encode_alloc gnutls_srp_base64_encode2
#define gnutls_srp_base64_decode_alloc gnutls_srp_base64_decode2

void
gnutls_srp_set_server_fake_salt_seed(gnutls_srp_server_credentials_t
				     sc,
				     const gnutls_datum_t * seed,
				     unsigned int salt_length);

/* PSK stuff */
typedef struct gnutls_psk_server_credentials_st
*gnutls_psk_server_credentials_t;
typedef struct gnutls_psk_client_credentials_st
*gnutls_psk_client_credentials_t;

/**
 * gnutls_psk_key_flags:
 * @GNUTLS_PSK_KEY_RAW: PSK-key in raw format.
 * @GNUTLS_PSK_KEY_HEX: PSK-key in hex format.
 *
 * Enumeration of different PSK key flags.
 */
typedef enum gnutls_psk_key_flags {
	GNUTLS_PSK_KEY_RAW = 0,
	GNUTLS_PSK_KEY_HEX
} gnutls_psk_key_flags;

void
gnutls_psk_free_client_credentials(gnutls_psk_client_credentials_t sc);
int
gnutls_psk_allocate_client_credentials(gnutls_psk_client_credentials_t *
				       sc);
int gnutls_psk_set_client_credentials(gnutls_psk_client_credentials_t res,
				      const char *username,
				      const gnutls_datum_t * key,
				      gnutls_psk_key_flags flags);
int gnutls_psk_set_client_credentials2(gnutls_psk_client_credentials_t res,
				       const gnutls_datum_t *username,
				       const gnutls_datum_t *key,
				       gnutls_psk_key_flags flags);

void
gnutls_psk_free_server_credentials(gnutls_psk_server_credentials_t sc);
int
gnutls_psk_allocate_server_credentials(gnutls_psk_server_credentials_t *
				       sc);
int gnutls_psk_set_server_credentials_file(gnutls_psk_server_credentials_t
					   res, const char *password_file);

int
gnutls_psk_set_server_credentials_hint(gnutls_psk_server_credentials_t
				       res, const char *hint);

const char *gnutls_psk_server_get_username(gnutls_session_t session);
int gnutls_psk_server_get_username2(gnutls_session_t session,
				    gnutls_datum_t *out);
const char *gnutls_psk_client_get_hint(gnutls_session_t session);

typedef int gnutls_psk_server_credentials_function(gnutls_session_t,
						   const char *username,
						   gnutls_datum_t * key);
typedef int gnutls_psk_server_credentials_function2(gnutls_session_t,
						    const gnutls_datum_t *username,
						    gnutls_datum_t *key);
void
gnutls_psk_set_server_credentials_function(gnutls_psk_server_credentials_t
					   cred,
					   gnutls_psk_server_credentials_function
					   * func);
void
gnutls_psk_set_server_credentials_function2(gnutls_psk_server_credentials_t cred,
					    gnutls_psk_server_credentials_function2 *func);

typedef int gnutls_psk_client_credentials_function(gnutls_session_t,
						   char **username,
						   gnutls_datum_t * key);
typedef int gnutls_psk_client_credentials_function2(gnutls_session_t,
						    gnutls_datum_t *username,
						    gnutls_datum_t *key);
void
gnutls_psk_set_client_credentials_function(gnutls_psk_client_credentials_t
					   cred,
					   gnutls_psk_client_credentials_function
					   * func);
void
gnutls_psk_set_client_credentials_function2(gnutls_psk_client_credentials_t cred,
					    gnutls_psk_client_credentials_function2 *func);

int gnutls_hex_encode(const gnutls_datum_t * data, char *result,
		      size_t * result_size);
int gnutls_hex_decode(const gnutls_datum_t * hex_data, void *result,
		      size_t * result_size);

int gnutls_hex_encode2(const gnutls_datum_t * data, gnutls_datum_t *result);
int gnutls_hex_decode2(const gnutls_datum_t * data, gnutls_datum_t *result);

void
gnutls_psk_set_server_dh_params(gnutls_psk_server_credentials_t res,
				gnutls_dh_params_t dh_params);

int
gnutls_psk_set_server_known_dh_params(gnutls_psk_server_credentials_t res,
				      gnutls_sec_param_t sec_param);

void
gnutls_psk_set_server_params_function(gnutls_psk_server_credentials_t
				      res, gnutls_params_function * func);

/**
 * gnutls_x509_subject_alt_name_t:
 * @GNUTLS_SAN_DNSNAME: DNS-name SAN.
 * @GNUTLS_SAN_RFC822NAME: E-mail address SAN.
 * @GNUTLS_SAN_URI: URI SAN.
 * @GNUTLS_SAN_IPADDRESS: IP address SAN.
 * @GNUTLS_SAN_OTHERNAME: OtherName SAN.
 * @GNUTLS_SAN_DN: DN SAN.
 * @GNUTLS_SAN_REGISTERED_ID: RegisteredID.
 * @GNUTLS_SAN_OTHERNAME_XMPP: Virtual SAN, used by certain functions for convenience.
 * @GNUTLS_SAN_OTHERNAME_KRB5PRINCIPAL: Virtual SAN, used by certain functions for convenience.
 *
 * Enumeration of different subject alternative names types.
 */
typedef enum gnutls_x509_subject_alt_name_t {
	GNUTLS_SAN_DNSNAME = 1,
	GNUTLS_SAN_RFC822NAME = 2,
	GNUTLS_SAN_URI = 3,
	GNUTLS_SAN_IPADDRESS = 4,
	GNUTLS_SAN_OTHERNAME = 5,
	GNUTLS_SAN_DN = 6,
	GNUTLS_SAN_REGISTERED_ID = 7,
	GNUTLS_SAN_MAX = GNUTLS_SAN_REGISTERED_ID,
	/* The following are "virtual" subject alternative name types, in
	   that they are represented by an otherName value and an OID.
	   Used by gnutls_x509_crt_get_subject_alt_othername_oid.  */
	GNUTLS_SAN_OTHERNAME_XMPP = 1000,
	GNUTLS_SAN_OTHERNAME_KRB5PRINCIPAL
} gnutls_x509_subject_alt_name_t;

struct gnutls_openpgp_crt_int;
typedef struct gnutls_openpgp_crt_int *gnutls_openpgp_crt_t;

struct gnutls_openpgp_privkey_int;
typedef struct gnutls_openpgp_privkey_int *gnutls_openpgp_privkey_t;

struct gnutls_pkcs11_privkey_st;
typedef struct gnutls_pkcs11_privkey_st *gnutls_pkcs11_privkey_t;

/**
 * gnutls_privkey_type_t:
 * @GNUTLS_PRIVKEY_X509: X.509 private key, #gnutls_x509_privkey_t.
 * @GNUTLS_PRIVKEY_OPENPGP: OpenPGP private key, #gnutls_openpgp_privkey_t.
 * @GNUTLS_PRIVKEY_PKCS11: PKCS11 private key, #gnutls_pkcs11_privkey_t.
 * @GNUTLS_PRIVKEY_EXT: External private key, operating using callbacks.
 *
 * Enumeration of different private key types.
 */
typedef enum {
	GNUTLS_PRIVKEY_X509,
	GNUTLS_PRIVKEY_OPENPGP,
	GNUTLS_PRIVKEY_PKCS11,
	GNUTLS_PRIVKEY_EXT
} gnutls_privkey_type_t;

typedef struct gnutls_retr2_st {
	gnutls_certificate_type_t cert_type;
	gnutls_privkey_type_t key_type;

	union {
		gnutls_x509_crt_t *x509;
		gnutls_openpgp_crt_t pgp;
	} cert;
	unsigned int ncerts;	/* one for pgp keys */

	union {
		gnutls_x509_privkey_t x509;
		gnutls_openpgp_privkey_t pgp;
		gnutls_pkcs11_privkey_t pkcs11;
	} key;

	unsigned int deinit_all;	/* if non zero all keys will be deinited */
} gnutls_retr2_st;


  /* Functions that allow auth_info_t structures handling
   */

gnutls_credentials_type_t gnutls_auth_get_type(gnutls_session_t session);
gnutls_credentials_type_t
gnutls_auth_server_get_type(gnutls_session_t session);
gnutls_credentials_type_t
gnutls_auth_client_get_type(gnutls_session_t session);

  /* DH */

void gnutls_dh_set_prime_bits(gnutls_session_t session, unsigned int bits);
int gnutls_dh_get_secret_bits(gnutls_session_t session);
int gnutls_dh_get_peers_public_bits(gnutls_session_t session);
int gnutls_dh_get_prime_bits(gnutls_session_t session);

int gnutls_dh_get_group(gnutls_session_t session, gnutls_datum_t * raw_gen,
			gnutls_datum_t * raw_prime);
int gnutls_dh_get_pubkey(gnutls_session_t session,
			 gnutls_datum_t * raw_key);

  /* X509PKI */


  /* These are set on the credentials structure.
   */

  /* use gnutls_certificate_set_retrieve_function2() in abstract.h
   * instead. It's much more efficient.
   */

typedef int gnutls_certificate_retrieve_function(gnutls_session_t,
						 const
						 gnutls_datum_t *
						 req_ca_rdn,
						 int nreqs,
						 const
						 gnutls_pk_algorithm_t
						 * pk_algos,
						 int
						 pk_algos_length,
						 gnutls_retr2_st *);


void
gnutls_certificate_set_retrieve_function(gnutls_certificate_credentials_t
					 cred,
					 gnutls_certificate_retrieve_function
					 * func);

void
gnutls_certificate_set_verify_function(gnutls_certificate_credentials_t
				       cred,
				       gnutls_certificate_verify_function
				       * func);

void
gnutls_certificate_server_set_request(gnutls_session_t session,
				      gnutls_certificate_request_t req);

  /* get data from the session
   */
const gnutls_datum_t *gnutls_certificate_get_peers(gnutls_session_t
						   session, unsigned int
						   *list_size);
const gnutls_datum_t *gnutls_certificate_get_ours(gnutls_session_t
						  session);

int gnutls_certificate_get_peers_subkey_id(gnutls_session_t session,
					   gnutls_datum_t * id);

time_t gnutls_certificate_activation_time_peers(gnutls_session_t session);
time_t gnutls_certificate_expiration_time_peers(gnutls_session_t session);

unsigned gnutls_certificate_client_get_request_status(gnutls_session_t session);
int gnutls_certificate_verify_peers2(gnutls_session_t session,
				     unsigned int *status);
int gnutls_certificate_verify_peers3(gnutls_session_t session,
				     const char *hostname,
				     unsigned int *status);

int
gnutls_certificate_verify_peers(gnutls_session_t session,
				gnutls_typed_vdata_st * data,
				unsigned int elements,
				unsigned int *status);

int gnutls_certificate_verification_status_print(unsigned int status,
						 gnutls_certificate_type_t
						 type,
						 gnutls_datum_t * out,
						 unsigned int flags);

int gnutls_pem_base64_encode(const char *msg, const gnutls_datum_t * data,
			     char *result, size_t * result_size);
int gnutls_pem_base64_decode(const char *header,
			     const gnutls_datum_t * b64_data,
			     unsigned char *result, size_t * result_size);

int gnutls_pem_base64_encode2(const char *msg,
				   const gnutls_datum_t * data,
				   gnutls_datum_t * result);
int gnutls_pem_base64_decode2(const char *header,
				   const gnutls_datum_t * b64_data,
				   gnutls_datum_t * result);

int gnutls_base64_encode2(const gnutls_datum_t * data,
			  gnutls_datum_t * result);
int gnutls_base64_decode2(const gnutls_datum_t * b64_data,
			  gnutls_datum_t * result);

#define gnutls_pem_base64_encode_alloc gnutls_pem_base64_encode2
#define gnutls_pem_base64_decode_alloc gnutls_pem_base64_decode2

  /* key_usage will be an OR of the following values:
   */

  /* when the key is to be used for signing: */
#define GNUTLS_KEY_DIGITAL_SIGNATURE	128
#define GNUTLS_KEY_NON_REPUDIATION	64
  /* when the key is to be used for encryption: */
#define GNUTLS_KEY_KEY_ENCIPHERMENT	32
#define GNUTLS_KEY_DATA_ENCIPHERMENT	16
#define GNUTLS_KEY_KEY_AGREEMENT	8
#define GNUTLS_KEY_KEY_CERT_SIGN	4
#define GNUTLS_KEY_CRL_SIGN		2
#define GNUTLS_KEY_ENCIPHER_ONLY	1
#define GNUTLS_KEY_DECIPHER_ONLY	32768

void
gnutls_certificate_set_params_function(gnutls_certificate_credentials_t
				       res, gnutls_params_function * func);
void gnutls_anon_set_params_function(gnutls_anon_server_credentials_t res,
				     gnutls_params_function * func);
void gnutls_psk_set_params_function(gnutls_psk_server_credentials_t res,
				    gnutls_params_function * func);

int gnutls_hex2bin(const char *hex_data, size_t hex_size,
		   void *bin_data, size_t * bin_size);

  /* Trust on first use (or ssh like) functions */

  /* stores the provided information to a database
   */
typedef int (*gnutls_tdb_store_func) (const char *db_name,
				      const char *host,
				      const char *service,
				      time_t expiration,
				      const gnutls_datum_t * pubkey);

typedef int (*gnutls_tdb_store_commitment_func) (const char *db_name,
						 const char *host,
						 const char *service,
						 time_t expiration,
						 gnutls_digest_algorithm_t
						 hash_algo,
						 const gnutls_datum_t *
						 hash);

  /* searches for the provided host/service pair that match the
   * provided public key in the database. */
typedef int (*gnutls_tdb_verify_func) (const char *db_name,
				       const char *host,
				       const char *service,
				       const gnutls_datum_t * pubkey);


struct gnutls_tdb_int;
typedef struct gnutls_tdb_int *gnutls_tdb_t;

int gnutls_tdb_init(gnutls_tdb_t * tdb);
void gnutls_tdb_set_store_func(gnutls_tdb_t tdb,
			       gnutls_tdb_store_func store);
void gnutls_tdb_set_store_commitment_func(gnutls_tdb_t tdb,
					  gnutls_tdb_store_commitment_func
					  cstore);
void gnutls_tdb_set_verify_func(gnutls_tdb_t tdb,
				gnutls_tdb_verify_func verify);
void gnutls_tdb_deinit(gnutls_tdb_t tdb);

int gnutls_verify_stored_pubkey(const char *db_name,
				gnutls_tdb_t tdb,
				const char *host,
				const char *service,
				gnutls_certificate_type_t cert_type,
				const gnutls_datum_t * cert,
				unsigned int flags);

#define GNUTLS_SCOMMIT_FLAG_ALLOW_BROKEN 1
int gnutls_store_commitment(const char *db_name,
			    gnutls_tdb_t tdb,
			    const char *host,
			    const char *service,
			    gnutls_digest_algorithm_t hash_algo,
			    const gnutls_datum_t * hash,
			    time_t expiration, unsigned int flags);

int gnutls_store_pubkey(const char *db_name,
			gnutls_tdb_t tdb,
			const char *host,
			const char *service,
			gnutls_certificate_type_t cert_type,
			const gnutls_datum_t * cert,
			time_t expiration, unsigned int flags);

  /* Other helper functions */
int gnutls_load_file(const char *filename, gnutls_datum_t * data);

unsigned gnutls_url_is_supported(const char *url);

  /* PIN callback */

/**
 * gnutls_pin_flag_t:
 * @GNUTLS_PIN_USER: The PIN for the user.
 * @GNUTLS_PIN_SO: The PIN for the security officer (admin).
 * @GNUTLS_PIN_CONTEXT_SPECIFIC: The PIN is for a specific action and key like signing.
 * @GNUTLS_PIN_FINAL_TRY: This is the final try before blocking.
 * @GNUTLS_PIN_COUNT_LOW: Few tries remain before token blocks.
 * @GNUTLS_PIN_WRONG: Last given PIN was not correct.
 *
 * Enumeration of different flags that are input to the PIN function.
 */
typedef enum {
	GNUTLS_PIN_USER = (1 << 0),
	GNUTLS_PIN_SO = (1 << 1),
	GNUTLS_PIN_FINAL_TRY = (1 << 2),
	GNUTLS_PIN_COUNT_LOW = (1 << 3),
	GNUTLS_PIN_CONTEXT_SPECIFIC = (1 << 4),
	GNUTLS_PIN_WRONG = (1 << 5)
} gnutls_pin_flag_t;

#define GNUTLS_PKCS11_PIN_USER GNUTLS_PIN_USER
#define GNUTLS_PKCS11_PIN_SO GNUTLS_PIN_SO
#define GNUTLS_PKCS11_PIN_FINAL_TRY GNUTLS_PIN_FINAL_TRY
#define GNUTLS_PKCS11_PIN_COUNT_LOW  GNUTLS_PIN_COUNT_LOW
#define GNUTLS_PKCS11_PIN_CONTEXT_SPECIFIC GNUTLS_PIN_CONTEXT_SPECIFIC
#define GNUTLS_PKCS11_PIN_WRONG GNUTLS_PIN_WRONG

/**
 * gnutls_pin_callback_t:
 * @userdata: user-controlled data from gnutls_pkcs11_set_pin_function().
 * @attempt: pin-attempt counter, initially 0.
 * @token_url: URL of token.
 * @token_label: label of token.
 * @flags: a #gnutls_pin_flag_t flag.
 * @pin: buffer to hold PIN, of size @pin_max.
 * @pin_max: size of @pin buffer.
 *
 * Callback function type for PKCS#11 or TPM PIN entry.  It is set by
 * functions like gnutls_pkcs11_set_pin_function().
 *
 * The callback should provides the PIN code to unlock the token with
 * label @token_label, specified by the URL @token_url.
 *
 * The PIN code, as a NUL-terminated ASCII string, should be copied
 * into the @pin buffer (of maximum size @pin_max), and return 0 to
 * indicate success.  Alternatively, the callback may return a
 * negative gnutls error code to indicate failure and cancel PIN entry
 * (in which case, the contents of the @pin parameter are ignored).
 *
 * When a PIN is required, the callback will be invoked repeatedly
 * (and indefinitely) until either the returned PIN code is correct,
 * the callback returns failure, or the token refuses login (e.g. when
 * the token is locked due to too many incorrect PINs!).  For the
 * first such invocation, the @attempt counter will have value zero;
 * it will increase by one for each subsequent attempt.
 *
 * Returns: %GNUTLS_E_SUCCESS (0) on success or a negative error code on error.
 *
 * Since: 2.12.0
 **/
typedef int (*gnutls_pin_callback_t) (void *userdata, int attempt,
				      const char *token_url,
				      const char *token_label,
				      unsigned int flags,
				      char *pin, size_t pin_max);

void gnutls_certificate_set_pin_function(gnutls_certificate_credentials_t,
					 gnutls_pin_callback_t fn,
					 void *userdata);

/* Public string related functions */
typedef struct gnutls_buffer_st *gnutls_buffer_t;

int gnutls_buffer_append_data(gnutls_buffer_t, const void *data, size_t data_size);

#define GNUTLS_UTF8_IGNORE_ERRS 1
int gnutls_utf8_password_normalize(const unsigned char *password, unsigned password_len,
				   gnutls_datum_t *out, unsigned flags);

/* Public extensions related functions */

typedef void *gnutls_ext_priv_data_t;

void gnutls_ext_set_data(gnutls_session_t session, unsigned type,
			 gnutls_ext_priv_data_t);
int gnutls_ext_get_data(gnutls_session_t session, unsigned type,
			gnutls_ext_priv_data_t *);

unsigned gnutls_ext_get_current_msg(gnutls_session_t session);

typedef int (*gnutls_ext_recv_func) (gnutls_session_t session,
				     const unsigned char *data,
				     size_t len);

typedef int (*gnutls_ext_send_func) (gnutls_session_t session,
				     gnutls_buffer_t extdata);

typedef void (*gnutls_ext_deinit_data_func) (gnutls_ext_priv_data_t data);

typedef int (*gnutls_ext_pack_func) (gnutls_ext_priv_data_t data,
				     gnutls_buffer_t packed_data);

typedef int (*gnutls_ext_unpack_func) (gnutls_buffer_t packed_data,
				       gnutls_ext_priv_data_t *data);

#define GNUTLS_EXT_RAW_FLAG_TLS_CLIENT_HELLO 1
#define GNUTLS_EXT_RAW_FLAG_DTLS_CLIENT_HELLO (1<<1)
typedef int (*gnutls_ext_raw_process_func)(void *ctx, unsigned tls_id, const unsigned char *data, unsigned data_size);
int gnutls_ext_raw_parse(void *ctx, gnutls_ext_raw_process_func cb,
			 const gnutls_datum_t *data, unsigned int flags);

/**
 * gnutls_ext_parse_type_t:
 * @GNUTLS_EXT_NONE: Never to be parsed
 * @GNUTLS_EXT_ANY: Any extension type (should not be used as it is used only internally).
 * @GNUTLS_EXT_VERSION_NEG: Extensions to be parsed first for TLS version negotiation.
 * @GNUTLS_EXT_MANDATORY: Parsed after @GNUTLS_EXT_VERSION_NEG and even when resuming.
 * @GNUTLS_EXT_APPLICATION: Parsed after @GNUTLS_EXT_MANDATORY
 * @GNUTLS_EXT_TLS: TLS-internal extensions, parsed after @GNUTLS_EXT_APPLICATION.
 *
 * Enumeration of different TLS extension parsing phases.  The @gnutls_ext_parse_type_t
 * indicates the time/phase an extension is parsed during Client or Server hello parsing.
 *
 */
typedef enum {
  GNUTLS_EXT_ANY = 0,
  GNUTLS_EXT_APPLICATION = 1,
  GNUTLS_EXT_TLS = 2,
  GNUTLS_EXT_MANDATORY = 3,
  GNUTLS_EXT_NONE = 4,
  GNUTLS_EXT_VERSION_NEG = 5
} gnutls_ext_parse_type_t;

/**
 * gnutls_ext_flags_t:
 * @GNUTLS_EXT_FLAG_OVERRIDE_INTERNAL: If specified the extension registered will override the internal; this does not work with extensions existing prior to 3.6.0.
 * @GNUTLS_EXT_FLAG_CLIENT_HELLO: This extension can be present in a client hello
 * @GNUTLS_EXT_FLAG_TLS12_SERVER_HELLO: This extension can be present in a TLS1.2 or earlier server hello
 * @GNUTLS_EXT_FLAG_TLS13_SERVER_HELLO: This extension can be present in a TLS1.3 server hello
 * @GNUTLS_EXT_FLAG_EE: This extension can be present in encrypted extensions message
 * @GNUTLS_EXT_FLAG_HRR: This extension can be present in hello retry request message
 * @GNUTLS_EXT_FLAG_IGNORE_CLIENT_REQUEST: When flag is present, this extension will be send even if the client didn't advertise it. An extension of this type is the Cookie TLS1.3 extension.
 * @GNUTLS_EXT_FLAG_DTLS: This extension can be present under DTLS; otherwise ignored.
 * @GNUTLS_EXT_FLAG_TLS: This extension can be present under TLS; otherwise ignored.
 *
 * Enumeration of different TLS extension registration flags.
 */
typedef enum {
  GNUTLS_EXT_FLAG_OVERRIDE_INTERNAL = 1,
  GNUTLS_EXT_FLAG_CLIENT_HELLO = (1<<1),
  GNUTLS_EXT_FLAG_TLS12_SERVER_HELLO = (1<<2),
  GNUTLS_EXT_FLAG_TLS13_SERVER_HELLO = (1<<3),
  GNUTLS_EXT_FLAG_EE = (1<<4), /* ENCRYPTED */
  GNUTLS_EXT_FLAG_HRR = (1<<5),
  GNUTLS_EXT_FLAG_IGNORE_CLIENT_REQUEST = (1<<6),
  GNUTLS_EXT_FLAG_TLS = (1<<7),
  GNUTLS_EXT_FLAG_DTLS = (1<<8)
} gnutls_ext_flags_t;

/* Register a custom tls extension
 */
int gnutls_ext_register(const char *name, int type, gnutls_ext_parse_type_t parse_point,
				gnutls_ext_recv_func recv_func, gnutls_ext_send_func send_func, 
				gnutls_ext_deinit_data_func deinit_func, gnutls_ext_pack_func pack_func,
				gnutls_ext_unpack_func unpack_func);

int gnutls_session_ext_register(gnutls_session_t, const char *name, int type, gnutls_ext_parse_type_t parse_point,
				gnutls_ext_recv_func recv_func, gnutls_ext_send_func send_func, 
				gnutls_ext_deinit_data_func deinit_func, gnutls_ext_pack_func pack_func,
				gnutls_ext_unpack_func unpack_func, unsigned flags);

const char *gnutls_ext_get_name(unsigned int ext);
const char *gnutls_ext_get_name2(gnutls_session_t session, unsigned int tls_id,
				 gnutls_ext_parse_type_t parse_point);

/* Public supplemental data related functions */

typedef int (*gnutls_supp_recv_func) (gnutls_session_t session,
			       const unsigned char * data, size_t data_size);
typedef int (*gnutls_supp_send_func) (gnutls_session_t session,
			       gnutls_buffer_t buf);

int gnutls_supplemental_register(const char *name,
				gnutls_supplemental_data_format_type_t type,
				gnutls_supp_recv_func supp_recv_func,
				gnutls_supp_send_func supp_send_func);

int gnutls_session_supplemental_register(gnutls_session_t session, const char *name,
				gnutls_supplemental_data_format_type_t type,
				gnutls_supp_recv_func supp_recv_func,
				gnutls_supp_send_func supp_send_func,
				unsigned int flags);

void gnutls_supplemental_recv(gnutls_session_t session, unsigned do_recv_supplemental);

void gnutls_supplemental_send(gnutls_session_t session, unsigned do_send_supplemental);

/* Anti-replay related functions */

typedef struct gnutls_anti_replay_st *gnutls_anti_replay_t;

int gnutls_anti_replay_init(gnutls_anti_replay_t *anti_replay);
void gnutls_anti_replay_deinit(gnutls_anti_replay_t anti_replay);
void gnutls_anti_replay_set_window(gnutls_anti_replay_t anti_replay,
				   unsigned int window);
void gnutls_anti_replay_enable(gnutls_session_t session,
			       gnutls_anti_replay_t anti_replay);

typedef int (*gnutls_db_add_func) (void *, time_t exp_time, const gnutls_datum_t *key,
				   const gnutls_datum_t *data);

void gnutls_anti_replay_set_add_function(gnutls_anti_replay_t,
					 gnutls_db_add_func add_func);

void gnutls_anti_replay_set_ptr(gnutls_anti_replay_t, void *ptr);


/* FIPS140-2 related functions */
unsigned gnutls_fips140_mode_enabled(void);

/**
 * gnutls_fips_mode_t:
 * @GNUTLS_FIPS140_DISABLED: The FIPS140-2 mode is disabled.
 * @GNUTLS_FIPS140_STRICT: The default mode; all forbidden operations will cause an
 *                         operation failure via error code.
 * @GNUTLS_FIPS140_LAX: The library still uses the FIPS140-2 relevant algorithms but all
 *                      forbidden by FIPS140-2 operations are allowed; this is useful when the
 *                      application is aware of the followed security policy, and needs
 *                      to utilize disallowed operations for other reasons (e.g., compatibility).
 * @GNUTLS_FIPS140_LOG: Similarly to %GNUTLS_FIPS140_LAX, it allows forbidden operations; any use of them results
 *                      to a message to the audit callback functions.
 * @GNUTLS_FIPS140_SELFTESTS: A transient state during library initialization. That state
 *			cannot be set or seen by applications.
 *
 * Enumeration of different operational modes under FIPS140-2.
 */
typedef enum gnutls_fips_mode_t {
  GNUTLS_FIPS140_DISABLED = 0,
  GNUTLS_FIPS140_STRICT = 1,
  GNUTLS_FIPS140_SELFTESTS = 2,
  GNUTLS_FIPS140_LAX = 3,
  GNUTLS_FIPS140_LOG = 4
} gnutls_fips_mode_t;

#define GNUTLS_FIPS140_SET_MODE_THREAD 1

void gnutls_fips140_set_mode(gnutls_fips_mode_t mode, unsigned flags);

#define GNUTLS_FIPS140_SET_LAX_MODE() do { \
	if (gnutls_fips140_mode_enabled()) \
		gnutls_fips140_set_mode(GNUTLS_FIPS140_LAX, GNUTLS_FIPS140_SET_MODE_THREAD); \
	} while(0)

#define GNUTLS_FIPS140_SET_STRICT_MODE() do { \
	if (gnutls_fips140_mode_enabled()) \
		gnutls_fips140_set_mode(GNUTLS_FIPS140_STRICT, GNUTLS_FIPS140_SET_MODE_THREAD); \
	} while(0)

  /* Gnutls error codes. The mapping to a TLS alert is also shown in
   * comments.
   */

#define GNUTLS_E_SUCCESS 0
#define	GNUTLS_E_UNKNOWN_COMPRESSION_ALGORITHM -3
#define	GNUTLS_E_UNKNOWN_CIPHER_TYPE -6
#define	GNUTLS_E_LARGE_PACKET -7
#define GNUTLS_E_UNSUPPORTED_VERSION_PACKET -8	/* GNUTLS_A_PROTOCOL_VERSION */
#define GNUTLS_E_TLS_PACKET_DECODING_ERROR GNUTLS_E_UNEXPECTED_PACKET_LENGTH
#define GNUTLS_E_UNEXPECTED_PACKET_LENGTH -9	/* GNUTLS_A_DECODE_ERROR */
#define GNUTLS_E_INVALID_SESSION -10
#define GNUTLS_E_FATAL_ALERT_RECEIVED -12
#define GNUTLS_E_UNEXPECTED_PACKET -15	/* GNUTLS_A_UNEXPECTED_MESSAGE */
#define GNUTLS_E_WARNING_ALERT_RECEIVED -16
#define GNUTLS_E_ERROR_IN_FINISHED_PACKET -18
#define GNUTLS_E_UNEXPECTED_HANDSHAKE_PACKET -19
#define	GNUTLS_E_UNKNOWN_CIPHER_SUITE -21	/* GNUTLS_A_HANDSHAKE_FAILURE */
#define	GNUTLS_E_UNWANTED_ALGORITHM -22
#define	GNUTLS_E_MPI_SCAN_FAILED -23
#define GNUTLS_E_DECRYPTION_FAILED -24	/* GNUTLS_A_DECRYPTION_FAILED, GNUTLS_A_BAD_RECORD_MAC */
#define GNUTLS_E_MEMORY_ERROR -25
#define GNUTLS_E_DECOMPRESSION_FAILED -26	/* GNUTLS_A_DECOMPRESSION_FAILURE */
#define GNUTLS_E_COMPRESSION_FAILED -27
#define GNUTLS_E_AGAIN -28
#define GNUTLS_E_EXPIRED -29
#define GNUTLS_E_DB_ERROR -30
#define GNUTLS_E_SRP_PWD_ERROR GNUTLS_E_KEYFILE_ERROR
#define GNUTLS_E_KEYFILE_ERROR -31
#define GNUTLS_E_INSUFFICIENT_CREDENTIALS -32
#define GNUTLS_E_INSUFICIENT_CREDENTIALS GNUTLS_E_INSUFFICIENT_CREDENTIALS	/* for backwards compatibility only */
#define GNUTLS_E_INSUFFICIENT_CRED GNUTLS_E_INSUFFICIENT_CREDENTIALS
#define GNUTLS_E_INSUFICIENT_CRED GNUTLS_E_INSUFFICIENT_CREDENTIALS	/* for backwards compatibility only */

#define GNUTLS_E_HASH_FAILED -33
#define GNUTLS_E_BASE64_DECODING_ERROR -34

#define	GNUTLS_E_MPI_PRINT_FAILED -35
#define GNUTLS_E_REHANDSHAKE -37	/* GNUTLS_A_NO_RENEGOTIATION */
#define GNUTLS_E_GOT_APPLICATION_DATA -38
#define GNUTLS_E_RECORD_LIMIT_REACHED -39
#define GNUTLS_E_ENCRYPTION_FAILED -40

#define GNUTLS_E_PK_ENCRYPTION_FAILED -44
#define GNUTLS_E_PK_DECRYPTION_FAILED -45
#define GNUTLS_E_PK_SIGN_FAILED -46
#define GNUTLS_E_X509_UNSUPPORTED_CRITICAL_EXTENSION -47
#define GNUTLS_E_KEY_USAGE_VIOLATION -48
#define GNUTLS_E_NO_CERTIFICATE_FOUND -49	/* GNUTLS_A_BAD_CERTIFICATE */
#define GNUTLS_E_INVALID_REQUEST -50
#define GNUTLS_E_SHORT_MEMORY_BUFFER -51
#define GNUTLS_E_INTERRUPTED -52
#define GNUTLS_E_PUSH_ERROR -53
#define GNUTLS_E_PULL_ERROR -54
#define GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER -55	/* GNUTLS_A_ILLEGAL_PARAMETER */
#define GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE -56
#define GNUTLS_E_PKCS1_WRONG_PAD -57
#define GNUTLS_E_RECEIVED_ILLEGAL_EXTENSION -58
#define GNUTLS_E_INTERNAL_ERROR -59
#define GNUTLS_E_DH_PRIME_UNACCEPTABLE -63
#define GNUTLS_E_FILE_ERROR -64
#define GNUTLS_E_TOO_MANY_EMPTY_PACKETS -78
#define GNUTLS_E_UNKNOWN_PK_ALGORITHM -80
#define GNUTLS_E_TOO_MANY_HANDSHAKE_PACKETS -81
#define GNUTLS_E_RECEIVED_DISALLOWED_NAME -82 /* GNUTLS_A_ILLEGAL_PARAMETER */
#define GNUTLS_E_CERTIFICATE_REQUIRED -112 /* GNUTLS_A_CERTIFICATE_REQUIRED */

  /* returned if you need to generate temporary RSA
   * parameters. These are needed for export cipher suites.
   */
#define GNUTLS_E_NO_TEMPORARY_RSA_PARAMS -84

#define GNUTLS_E_NO_COMPRESSION_ALGORITHMS -86
#define GNUTLS_E_NO_CIPHER_SUITES -87

#define GNUTLS_E_OPENPGP_GETKEY_FAILED -88
#define GNUTLS_E_PK_SIG_VERIFY_FAILED -89

#define GNUTLS_E_ILLEGAL_SRP_USERNAME -90
#define GNUTLS_E_SRP_PWD_PARSING_ERROR GNUTLS_E_KEYFILE_PARSING_ERROR
#define GNUTLS_E_KEYFILE_PARSING_ERROR -91
#define GNUTLS_E_NO_TEMPORARY_DH_PARAMS -93

  /* For certificate and key stuff
   */
#define GNUTLS_E_ASN1_ELEMENT_NOT_FOUND -67
#define GNUTLS_E_ASN1_IDENTIFIER_NOT_FOUND -68
#define GNUTLS_E_ASN1_DER_ERROR -69
#define GNUTLS_E_ASN1_VALUE_NOT_FOUND -70
#define GNUTLS_E_ASN1_GENERIC_ERROR -71
#define GNUTLS_E_ASN1_VALUE_NOT_VALID -72
#define GNUTLS_E_ASN1_TAG_ERROR -73
#define GNUTLS_E_ASN1_TAG_IMPLICIT -74
#define GNUTLS_E_ASN1_TYPE_ANY_ERROR -75
#define GNUTLS_E_ASN1_SYNTAX_ERROR -76
#define GNUTLS_E_ASN1_DER_OVERFLOW -77
#define GNUTLS_E_OPENPGP_UID_REVOKED -79
#define GNUTLS_E_CERTIFICATE_ERROR -43
#define GNUTLS_E_X509_CERTIFICATE_ERROR GNUTLS_E_CERTIFICATE_ERROR
#define GNUTLS_E_CERTIFICATE_KEY_MISMATCH -60
#define GNUTLS_E_UNSUPPORTED_CERTIFICATE_TYPE -61	/* GNUTLS_A_UNSUPPORTED_CERTIFICATE */
#define GNUTLS_E_X509_UNKNOWN_SAN -62
#define GNUTLS_E_OPENPGP_FINGERPRINT_UNSUPPORTED -94
#define GNUTLS_E_X509_UNSUPPORTED_ATTRIBUTE -95
#define GNUTLS_E_UNKNOWN_HASH_ALGORITHM -96
#define GNUTLS_E_UNKNOWN_PKCS_CONTENT_TYPE -97
#define GNUTLS_E_UNKNOWN_PKCS_BAG_TYPE -98
#define GNUTLS_E_INVALID_PASSWORD -99
#define GNUTLS_E_MAC_VERIFY_FAILED -100	/* for PKCS #12 MAC */
#define GNUTLS_E_CONSTRAINT_ERROR -101

#define GNUTLS_E_WARNING_IA_IPHF_RECEIVED -102
#define GNUTLS_E_WARNING_IA_FPHF_RECEIVED -103

#define GNUTLS_E_IA_VERIFY_FAILED -104
#define GNUTLS_E_UNKNOWN_ALGORITHM -105
#define GNUTLS_E_UNSUPPORTED_SIGNATURE_ALGORITHM -106
#define GNUTLS_E_SAFE_RENEGOTIATION_FAILED -107
#define GNUTLS_E_UNSAFE_RENEGOTIATION_DENIED -108
#define GNUTLS_E_UNKNOWN_SRP_USERNAME -109
#define GNUTLS_E_PREMATURE_TERMINATION -110

#define GNUTLS_E_MALFORMED_CIDR -111

#define GNUTLS_E_BASE64_ENCODING_ERROR -201
#define GNUTLS_E_INCOMPATIBLE_GCRYPT_LIBRARY -202	/* obsolete */
#define GNUTLS_E_INCOMPATIBLE_CRYPTO_LIBRARY -202
#define GNUTLS_E_INCOMPATIBLE_LIBTASN1_LIBRARY -203

#define GNUTLS_E_OPENPGP_KEYRING_ERROR -204
#define GNUTLS_E_X509_UNSUPPORTED_OID -205

#define GNUTLS_E_RANDOM_FAILED -206
#define GNUTLS_E_BASE64_UNEXPECTED_HEADER_ERROR -207

#define GNUTLS_E_OPENPGP_SUBKEY_ERROR -208

#define GNUTLS_E_CRYPTO_ALREADY_REGISTERED GNUTLS_E_ALREADY_REGISTERED
#define GNUTLS_E_ALREADY_REGISTERED -209

#define GNUTLS_E_HANDSHAKE_TOO_LARGE -210

#define GNUTLS_E_CRYPTODEV_IOCTL_ERROR -211
#define GNUTLS_E_CRYPTODEV_DEVICE_ERROR -212

#define GNUTLS_E_CHANNEL_BINDING_NOT_AVAILABLE -213
#define GNUTLS_E_BAD_COOKIE -214
#define GNUTLS_E_OPENPGP_PREFERRED_KEY_ERROR -215
#define GNUTLS_E_INCOMPAT_DSA_KEY_WITH_TLS_PROTOCOL -216
#define GNUTLS_E_INSUFFICIENT_SECURITY -217

#define GNUTLS_E_HEARTBEAT_PONG_RECEIVED -292
#define GNUTLS_E_HEARTBEAT_PING_RECEIVED -293

#define GNUTLS_E_UNRECOGNIZED_NAME -294

/* PKCS11 related */
#define GNUTLS_E_PKCS11_ERROR -300
#define GNUTLS_E_PKCS11_LOAD_ERROR -301
#define GNUTLS_E_PARSING_ERROR -302
#define GNUTLS_E_PKCS11_PIN_ERROR -303

#define GNUTLS_E_PKCS11_SLOT_ERROR -305
#define GNUTLS_E_LOCKING_ERROR -306
#define GNUTLS_E_PKCS11_ATTRIBUTE_ERROR -307
#define GNUTLS_E_PKCS11_DEVICE_ERROR -308
#define GNUTLS_E_PKCS11_DATA_ERROR -309
#define GNUTLS_E_PKCS11_UNSUPPORTED_FEATURE_ERROR -310
#define GNUTLS_E_PKCS11_KEY_ERROR -311
#define GNUTLS_E_PKCS11_PIN_EXPIRED -312
#define GNUTLS_E_PKCS11_PIN_LOCKED -313
#define GNUTLS_E_PKCS11_SESSION_ERROR -314
#define GNUTLS_E_PKCS11_SIGNATURE_ERROR -315
#define GNUTLS_E_PKCS11_TOKEN_ERROR -316
#define GNUTLS_E_PKCS11_USER_ERROR -317

#define GNUTLS_E_CRYPTO_INIT_FAILED -318
#define GNUTLS_E_TIMEDOUT -319
#define GNUTLS_E_USER_ERROR -320
#define GNUTLS_E_ECC_NO_SUPPORTED_CURVES -321
#define GNUTLS_E_ECC_UNSUPPORTED_CURVE -322
#define GNUTLS_E_PKCS11_REQUESTED_OBJECT_NOT_AVAILBLE -323
#define GNUTLS_E_CERTIFICATE_LIST_UNSORTED -324
#define GNUTLS_E_ILLEGAL_PARAMETER -325 /* GNUTLS_A_ILLEGAL_PARAMETER */
#define GNUTLS_E_NO_PRIORITIES_WERE_SET -326
#define GNUTLS_E_X509_UNSUPPORTED_EXTENSION -327
#define GNUTLS_E_SESSION_EOF -328

#define GNUTLS_E_TPM_ERROR -329
#define GNUTLS_E_TPM_KEY_PASSWORD_ERROR -330
#define GNUTLS_E_TPM_SRK_PASSWORD_ERROR -331
#define GNUTLS_E_TPM_SESSION_ERROR -332
#define GNUTLS_E_TPM_KEY_NOT_FOUND -333
#define GNUTLS_E_TPM_UNINITIALIZED -334
#define GNUTLS_E_TPM_NO_LIB -335

#define GNUTLS_E_NO_CERTIFICATE_STATUS -340
#define GNUTLS_E_OCSP_RESPONSE_ERROR -341
#define GNUTLS_E_RANDOM_DEVICE_ERROR -342
#define GNUTLS_E_AUTH_ERROR -343
#define GNUTLS_E_NO_APPLICATION_PROTOCOL -344
#define GNUTLS_E_SOCKETS_INIT_ERROR -345
#define GNUTLS_E_KEY_IMPORT_FAILED -346
#define GNUTLS_E_INAPPROPRIATE_FALLBACK -347 /*GNUTLS_A_INAPPROPRIATE_FALLBACK*/
#define GNUTLS_E_CERTIFICATE_VERIFICATION_ERROR -348
#define GNUTLS_E_PRIVKEY_VERIFICATION_ERROR -349
#define GNUTLS_E_UNEXPECTED_EXTENSIONS_LENGTH -350 /*GNUTLS_A_DECODE_ERROR*/
#define GNUTLS_E_ASN1_EMBEDDED_NULL_IN_STRING -351

#define GNUTLS_E_SELF_TEST_ERROR -400
#define GNUTLS_E_NO_SELF_TEST -401
#define GNUTLS_E_LIB_IN_ERROR_STATE -402
#define GNUTLS_E_PK_GENERATION_ERROR -403
#define GNUTLS_E_IDNA_ERROR -404

#define GNUTLS_E_NEED_FALLBACK -405
#define GNUTLS_E_SESSION_USER_ID_CHANGED -406
#define GNUTLS_E_HANDSHAKE_DURING_FALSE_START -407
#define GNUTLS_E_UNAVAILABLE_DURING_HANDSHAKE -408
#define GNUTLS_E_PK_INVALID_PUBKEY -409
#define GNUTLS_E_PK_INVALID_PRIVKEY -410
#define GNUTLS_E_NOT_YET_ACTIVATED -411
#define GNUTLS_E_INVALID_UTF8_STRING -412
#define GNUTLS_E_NO_EMBEDDED_DATA -413
#define GNUTLS_E_INVALID_UTF8_EMAIL -414
#define GNUTLS_E_INVALID_PASSWORD_STRING -415
#define GNUTLS_E_CERTIFICATE_TIME_ERROR -416
#define GNUTLS_E_RECORD_OVERFLOW -417	/* GNUTLS_A_RECORD_OVERFLOW */
#define GNUTLS_E_ASN1_TIME_ERROR -418
#define GNUTLS_E_INCOMPATIBLE_SIG_WITH_KEY -419
#define GNUTLS_E_PK_INVALID_PUBKEY_PARAMS -420
#define GNUTLS_E_PK_NO_VALIDATION_PARAMS -421
#define GNUTLS_E_OCSP_MISMATCH_WITH_CERTS -422

#define GNUTLS_E_NO_COMMON_KEY_SHARE -423
#define GNUTLS_E_REAUTH_REQUEST -424
#define GNUTLS_E_TOO_MANY_MATCHES -425
#define GNUTLS_E_CRL_VERIFICATION_ERROR -426
#define GNUTLS_E_MISSING_EXTENSION -427
#define GNUTLS_E_DB_ENTRY_EXISTS -428
#define GNUTLS_E_EARLY_DATA_REJECTED -429
#define GNUTLS_E_X509_DUPLICATE_EXTENSION -430

#define GNUTLS_E_UNIMPLEMENTED_FEATURE -1250

/* Internal errors of the library; will never be returned
 * to a calling application */
#define GNUTLS_E_INT_RET_0 -1251
#define GNUTLS_E_INT_CHECK_AGAIN -1252

#define GNUTLS_E_APPLICATION_ERROR_MAX -65000
#define GNUTLS_E_APPLICATION_ERROR_MIN -65500

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */

#include <gnutls/compat.h>

#endif				/* GNUTLS_H */
PK�vFZ~`�Ր�pkcs12.hnu�[���/*
 * Copyright (C) 2003-2012 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

#ifndef GNUTLS_PKCS12_H
#define GNUTLS_PKCS12_H

#include <gnutls/x509.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

	/* PKCS12 structures handling
	 */
struct gnutls_pkcs12_int;
typedef struct gnutls_pkcs12_int *gnutls_pkcs12_t;

struct gnutls_pkcs12_bag_int;
typedef struct gnutls_pkcs12_bag_int *gnutls_pkcs12_bag_t;

int gnutls_pkcs12_init(gnutls_pkcs12_t * pkcs12);
void gnutls_pkcs12_deinit(gnutls_pkcs12_t pkcs12);
int gnutls_pkcs12_import(gnutls_pkcs12_t pkcs12,
			 const gnutls_datum_t * data,
			 gnutls_x509_crt_fmt_t format, unsigned int flags);
int gnutls_pkcs12_export(gnutls_pkcs12_t pkcs12,
			 gnutls_x509_crt_fmt_t format,
			 void *output_data, size_t * output_data_size);
int gnutls_pkcs12_export2(gnutls_pkcs12_t pkcs12,
			  gnutls_x509_crt_fmt_t format,
			  gnutls_datum_t * out);

int gnutls_pkcs12_get_bag(gnutls_pkcs12_t pkcs12,
			  int indx, gnutls_pkcs12_bag_t bag);
int gnutls_pkcs12_set_bag(gnutls_pkcs12_t pkcs12, gnutls_pkcs12_bag_t bag);

int gnutls_pkcs12_generate_mac(gnutls_pkcs12_t pkcs12, const char *pass);
int gnutls_pkcs12_generate_mac2(gnutls_pkcs12_t pkcs12, gnutls_mac_algorithm_t mac, const char *pass);
int gnutls_pkcs12_verify_mac(gnutls_pkcs12_t pkcs12, const char *pass);

int gnutls_pkcs12_bag_decrypt(gnutls_pkcs12_bag_t bag, const char *pass);
int gnutls_pkcs12_bag_encrypt(gnutls_pkcs12_bag_t bag,
			      const char *pass, unsigned int flags);

int
gnutls_pkcs12_bag_enc_info(gnutls_pkcs12_bag_t bag, unsigned int *schema, unsigned int *cipher,
	void *salt, unsigned int *salt_size, unsigned int *iter_count, char **oid);
int
gnutls_pkcs12_mac_info(gnutls_pkcs12_t pkcs12, unsigned int *mac,
	void *salt, unsigned int *salt_size, unsigned int *iter_count, char **oid);

#define GNUTLS_PKCS12_SP_INCLUDE_SELF_SIGNED 1
int gnutls_pkcs12_simple_parse(gnutls_pkcs12_t p12,
			       const char *password,
			       gnutls_x509_privkey_t * key,
			       gnutls_x509_crt_t ** chain,
			       unsigned int *chain_len,
			       gnutls_x509_crt_t ** extra_certs,
			       unsigned int *extra_certs_len,
			       gnutls_x509_crl_t * crl,
			       unsigned int flags);

/**
 * gnutls_pkcs12_bag_type_t:
 * @GNUTLS_BAG_EMPTY: Empty PKCS-12 bag.
 * @GNUTLS_BAG_PKCS8_ENCRYPTED_KEY: PKCS-12 bag with PKCS-8 encrypted key.
 * @GNUTLS_BAG_PKCS8_KEY: PKCS-12 bag with PKCS-8 key.
 * @GNUTLS_BAG_CERTIFICATE: PKCS-12 bag with certificate.
 * @GNUTLS_BAG_CRL: PKCS-12 bag with CRL.
 * @GNUTLS_BAG_SECRET: PKCS-12 bag with secret PKCS-9 keys.
 * @GNUTLS_BAG_ENCRYPTED: Encrypted PKCS-12 bag.
 * @GNUTLS_BAG_UNKNOWN: Unknown PKCS-12 bag.
 *
 * Enumeration of different PKCS 12 bag types.
 */
typedef enum gnutls_pkcs12_bag_type_t {
	GNUTLS_BAG_EMPTY = 0,
	GNUTLS_BAG_PKCS8_ENCRYPTED_KEY = 1,
	GNUTLS_BAG_PKCS8_KEY = 2,
	GNUTLS_BAG_CERTIFICATE = 3,
	GNUTLS_BAG_CRL = 4,
	GNUTLS_BAG_SECRET = 5,	/* Secret data. Underspecified in pkcs-12,
				 * gnutls extension. We use the PKCS-9
				 * random nonce ID 1.2.840.113549.1.9.25.3
				 * to store randomly generated keys.
				 */
	GNUTLS_BAG_ENCRYPTED = 10,
	GNUTLS_BAG_UNKNOWN = 20
} gnutls_pkcs12_bag_type_t;

int
gnutls_pkcs12_bag_get_type(gnutls_pkcs12_bag_t bag, unsigned indx);
int gnutls_pkcs12_bag_get_data(gnutls_pkcs12_bag_t bag, unsigned indx,
			       gnutls_datum_t * data);
int gnutls_pkcs12_bag_set_data(gnutls_pkcs12_bag_t bag,
			       gnutls_pkcs12_bag_type_t type,
			       const gnutls_datum_t * data);
int gnutls_pkcs12_bag_set_crl(gnutls_pkcs12_bag_t bag,
			      gnutls_x509_crl_t crl);
int gnutls_pkcs12_bag_set_crt(gnutls_pkcs12_bag_t bag,
			      gnutls_x509_crt_t crt);

int
gnutls_pkcs12_bag_set_privkey(gnutls_pkcs12_bag_t bag,
			      gnutls_x509_privkey_t privkey,
			      const char *password, unsigned flags);

int gnutls_pkcs12_bag_init(gnutls_pkcs12_bag_t * bag);
void gnutls_pkcs12_bag_deinit(gnutls_pkcs12_bag_t bag);
int gnutls_pkcs12_bag_get_count(gnutls_pkcs12_bag_t bag);

int gnutls_pkcs12_bag_get_key_id(gnutls_pkcs12_bag_t bag, unsigned indx,
				 gnutls_datum_t * id);
int gnutls_pkcs12_bag_set_key_id(gnutls_pkcs12_bag_t bag, unsigned indx,
				 const gnutls_datum_t * id);

int gnutls_pkcs12_bag_get_friendly_name(gnutls_pkcs12_bag_t bag,
					unsigned indx, char **name);
int gnutls_pkcs12_bag_set_friendly_name(gnutls_pkcs12_bag_t bag,
					unsigned indx, const char *name);

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif				/* GNUTLS_PKCS12_H */
PK�vFZ��!ؒ�pkcs7.hnu�[���/*
 * Copyright (C) 2003-2012 Free Software Foundation, Inc.
 * Copyright (C) 2015 Red Hat, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

/* This file contains the types and prototypes for the X.509
 * certificate and CRL handling functions.
 */

#ifndef GNUTLS_PKCS7_H
#define GNUTLS_PKCS7_H

#include <gnutls/gnutls.h>
#include <gnutls/x509.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

/* PKCS7 structures handling
 */
struct gnutls_pkcs7_int;
typedef struct gnutls_pkcs7_int *gnutls_pkcs7_t;

int gnutls_pkcs7_init(gnutls_pkcs7_t * pkcs7);
void gnutls_pkcs7_deinit(gnutls_pkcs7_t pkcs7);
int gnutls_pkcs7_import(gnutls_pkcs7_t pkcs7,
			const gnutls_datum_t * data,
			gnutls_x509_crt_fmt_t format);
int gnutls_pkcs7_export(gnutls_pkcs7_t pkcs7,
			gnutls_x509_crt_fmt_t format,
			void *output_data, size_t * output_data_size);
int gnutls_pkcs7_export2(gnutls_pkcs7_t pkcs7,
			 gnutls_x509_crt_fmt_t format,
			 gnutls_datum_t * out);

int gnutls_pkcs7_get_signature_count(gnutls_pkcs7_t pkcs7);

#define GNUTLS_PKCS7_EDATA_GET_RAW (1<<24)
int gnutls_pkcs7_get_embedded_data(gnutls_pkcs7_t pkcs7, unsigned flags, gnutls_datum_t *data);

const char *
gnutls_pkcs7_get_embedded_data_oid(gnutls_pkcs7_t pkcs7);

int gnutls_pkcs7_get_crt_count(gnutls_pkcs7_t pkcs7);
int gnutls_pkcs7_get_crt_raw(gnutls_pkcs7_t pkcs7, unsigned indx,
			     void *certificate, size_t * certificate_size);

int gnutls_pkcs7_set_crt_raw(gnutls_pkcs7_t pkcs7,
			     const gnutls_datum_t * crt);
int gnutls_pkcs7_set_crt(gnutls_pkcs7_t pkcs7, gnutls_x509_crt_t crt);
int gnutls_pkcs7_delete_crt(gnutls_pkcs7_t pkcs7, int indx);

int gnutls_pkcs7_get_crl_raw(gnutls_pkcs7_t pkcs7,
			     unsigned indx, void *crl, size_t * crl_size);
int gnutls_pkcs7_get_crl_count(gnutls_pkcs7_t pkcs7);

int gnutls_pkcs7_set_crl_raw(gnutls_pkcs7_t pkcs7,
			     const gnutls_datum_t * crl);
int gnutls_pkcs7_set_crl(gnutls_pkcs7_t pkcs7, gnutls_x509_crl_t crl);
int gnutls_pkcs7_delete_crl(gnutls_pkcs7_t pkcs7, int indx);

typedef struct gnutls_pkcs7_attrs_st *gnutls_pkcs7_attrs_t;

typedef struct gnutls_pkcs7_signature_info_st {
	gnutls_sign_algorithm_t algo;
	gnutls_datum_t sig;
	gnutls_datum_t issuer_dn;
	gnutls_datum_t signer_serial;
	gnutls_datum_t issuer_keyid;
	time_t signing_time;
	gnutls_pkcs7_attrs_t signed_attrs;
	gnutls_pkcs7_attrs_t unsigned_attrs;
	char pad[64];
} gnutls_pkcs7_signature_info_st;

void gnutls_pkcs7_signature_info_deinit(gnutls_pkcs7_signature_info_st *info);
int gnutls_pkcs7_get_signature_info(gnutls_pkcs7_t pkcs7, unsigned idx, gnutls_pkcs7_signature_info_st *info);

int gnutls_pkcs7_verify_direct(gnutls_pkcs7_t pkcs7, gnutls_x509_crt_t signer,
			       unsigned idx, const gnutls_datum_t *data, unsigned flags);
int gnutls_pkcs7_verify(gnutls_pkcs7_t pkcs7, gnutls_x509_trust_list_t tl,
			gnutls_typed_vdata_st * vdata, unsigned int vdata_size,
			unsigned idx, const gnutls_datum_t *data, unsigned flags);

#define GNUTLS_PKCS7_ATTR_ENCODE_OCTET_STRING 1
int gnutls_pkcs7_add_attr(gnutls_pkcs7_attrs_t *list, const char *oid, gnutls_datum_t *data, unsigned flags);
void gnutls_pkcs7_attrs_deinit(gnutls_pkcs7_attrs_t list);
int gnutls_pkcs7_get_attr(gnutls_pkcs7_attrs_t list, unsigned idx, char **oid, gnutls_datum_t *data, unsigned flags);

/**
 * gnutls_pkcs7_sign_flags:
 * @GNUTLS_PKCS7_EMBED_DATA: The signed data will be embedded in the structure.
 * @GNUTLS_PKCS7_INCLUDE_TIME: The signing time will be included in the structure.
 * @GNUTLS_PKCS7_INCLUDE_CERT: The signer's certificate will be included in the cert list.
 * @GNUTLS_PKCS7_WRITE_SPKI: Use the signer's key identifier instead of name.
 *
 * Enumeration of the different PKCS #7 signature flags.
 */
typedef enum gnutls_pkcs7_sign_flags {
	GNUTLS_PKCS7_EMBED_DATA = 1,
	GNUTLS_PKCS7_INCLUDE_TIME = (1<<1),
	GNUTLS_PKCS7_INCLUDE_CERT = (1<<2),
	GNUTLS_PKCS7_WRITE_SPKI = (1<<3)
} gnutls_pkcs7_sign_flags;

int gnutls_pkcs7_sign(gnutls_pkcs7_t pkcs7,
		      gnutls_x509_crt_t signer,
		      gnutls_privkey_t signer_key,
		      const gnutls_datum_t *data,
		      gnutls_pkcs7_attrs_t signed_attrs,
		      gnutls_pkcs7_attrs_t unsigned_attrs,
		      gnutls_digest_algorithm_t dig,
		      unsigned flags);

int
gnutls_pkcs7_get_crt_raw2(gnutls_pkcs7_t pkcs7,
			  unsigned indx, gnutls_datum_t *cert);
int
gnutls_pkcs7_get_crl_raw2(gnutls_pkcs7_t pkcs7,
			  unsigned indx, gnutls_datum_t *crl);

int gnutls_pkcs7_print(gnutls_pkcs7_t pkcs7,
		       gnutls_certificate_print_formats_t format,
		       gnutls_datum_t * out);

int gnutls_pkcs7_print_signature_info(gnutls_pkcs7_signature_info_st * info,
				      gnutls_certificate_print_formats_t format,
				      gnutls_datum_t * out);

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif				/* GNUTLS_PKCS7_H */
PK�vFZ%Vv�"�"�x509.hnu�[���/*
 * Copyright (C) 2003-2016 Free Software Foundation, Inc.
 * Copyright (C) 2015-2016 Red Hat, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

/* This file contains the types and prototypes for the X.509
 * certificate and CRL handling functions.
 */

#ifndef GNUTLS_X509_H
#define GNUTLS_X509_H

#include <gnutls/gnutls.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

/* Some OIDs usually found in Distinguished names, or
 * in Subject Directory Attribute extensions.
 */
#define GNUTLS_OID_X520_COUNTRY_NAME		"2.5.4.6"
#define GNUTLS_OID_X520_ORGANIZATION_NAME	"2.5.4.10"
#define GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME "2.5.4.11"
#define GNUTLS_OID_X520_COMMON_NAME		"2.5.4.3"
#define GNUTLS_OID_X520_LOCALITY_NAME		"2.5.4.7"
#define GNUTLS_OID_X520_STATE_OR_PROVINCE_NAME	"2.5.4.8"

#define GNUTLS_OID_X520_INITIALS		"2.5.4.43"
#define GNUTLS_OID_X520_GENERATION_QUALIFIER	"2.5.4.44"
#define GNUTLS_OID_X520_SURNAME			"2.5.4.4"
#define GNUTLS_OID_X520_GIVEN_NAME		"2.5.4.42"
#define GNUTLS_OID_X520_TITLE			"2.5.4.12"
#define GNUTLS_OID_X520_DN_QUALIFIER		"2.5.4.46"
#define GNUTLS_OID_X520_PSEUDONYM		"2.5.4.65"
#define GNUTLS_OID_X520_POSTALCODE              "2.5.4.17"
#define GNUTLS_OID_X520_NAME                    "2.5.4.41"

#define GNUTLS_OID_LDAP_DC			"0.9.2342.19200300.100.1.25"
#define GNUTLS_OID_LDAP_UID			"0.9.2342.19200300.100.1.1"

/* The following should not be included in DN.
 */
#define GNUTLS_OID_PKCS9_EMAIL			"1.2.840.113549.1.9.1"

#define GNUTLS_OID_PKIX_DATE_OF_BIRTH		"1.3.6.1.5.5.7.9.1"
#define GNUTLS_OID_PKIX_PLACE_OF_BIRTH		"1.3.6.1.5.5.7.9.2"
#define GNUTLS_OID_PKIX_GENDER			"1.3.6.1.5.5.7.9.3"
#define GNUTLS_OID_PKIX_COUNTRY_OF_CITIZENSHIP	"1.3.6.1.5.5.7.9.4"
#define GNUTLS_OID_PKIX_COUNTRY_OF_RESIDENCE	"1.3.6.1.5.5.7.9.5"

/* Key purpose Object Identifiers.
 */
#define GNUTLS_KP_TLS_WWW_SERVER		"1.3.6.1.5.5.7.3.1"
#define GNUTLS_KP_TLS_WWW_CLIENT                "1.3.6.1.5.5.7.3.2"
#define GNUTLS_KP_CODE_SIGNING			"1.3.6.1.5.5.7.3.3"
#define GNUTLS_KP_MS_SMART_CARD_LOGON		"1.3.6.1.4.1.311.20.2.2"
#define GNUTLS_KP_EMAIL_PROTECTION		"1.3.6.1.5.5.7.3.4"
#define GNUTLS_KP_TIME_STAMPING			"1.3.6.1.5.5.7.3.8"
#define GNUTLS_KP_OCSP_SIGNING			"1.3.6.1.5.5.7.3.9"
#define GNUTLS_KP_IPSEC_IKE			"1.3.6.1.5.5.7.3.17"
#define GNUTLS_KP_ANY				"2.5.29.37.0"

#define GNUTLS_KP_FLAG_DISALLOW_ANY		1

#define GNUTLS_OID_AIA				"1.3.6.1.5.5.7.1.1"
#define GNUTLS_OID_AD_OCSP			"1.3.6.1.5.5.7.48.1"
#define GNUTLS_OID_AD_CAISSUERS			"1.3.6.1.5.5.7.48.2"

#define GNUTLS_FSAN_SET 0
#define GNUTLS_FSAN_APPEND 1
#define GNUTLS_FSAN_ENCODE_OCTET_STRING (1<<1)
#define GNUTLS_FSAN_ENCODE_UTF8_STRING (1<<2)

#define GNUTLS_X509EXT_OID_SUBJECT_KEY_ID "2.5.29.14"
#define GNUTLS_X509EXT_OID_KEY_USAGE "2.5.29.15"
#define GNUTLS_X509EXT_OID_PRIVATE_KEY_USAGE_PERIOD "2.5.29.16"
#define GNUTLS_X509EXT_OID_SAN "2.5.29.17"
#define GNUTLS_X509EXT_OID_IAN "2.5.29.18"
#define GNUTLS_X509EXT_OID_BASIC_CONSTRAINTS "2.5.29.19"
#define GNUTLS_X509EXT_OID_NAME_CONSTRAINTS "2.5.29.30"
#define GNUTLS_X509EXT_OID_CRL_DIST_POINTS "2.5.29.31"
#define GNUTLS_X509EXT_OID_CRT_POLICY "2.5.29.32"
#define GNUTLS_X509EXT_OID_AUTHORITY_KEY_ID "2.5.29.35"
#define GNUTLS_X509EXT_OID_EXTENDED_KEY_USAGE "2.5.29.37"
#define GNUTLS_X509EXT_OID_INHIBIT_ANYPOLICY "2.5.29.52"
#define GNUTLS_X509EXT_OID_AUTHORITY_INFO_ACCESS "1.3.6.1.5.5.7.1.1"
#define GNUTLS_X509EXT_OID_PROXY_CRT_INFO "1.3.6.1.5.5.7.1.14"
#define GNUTLS_X509EXT_OID_TLSFEATURES "1.3.6.1.5.5.7.1.24"

#define GNUTLS_X509_OID_POLICY_ANY "2.5.29.54"

/* Certificate handling functions.
 */

/**
 * gnutls_certificate_import_flags:
 * @GNUTLS_X509_CRT_LIST_IMPORT_FAIL_IF_EXCEED: Fail if the
 *   certificates in the buffer are more than the space allocated for
 *   certificates. The error code will be %GNUTLS_E_SHORT_MEMORY_BUFFER.
 * @GNUTLS_X509_CRT_LIST_FAIL_IF_UNSORTED: Fail if the certificates
 *   in the buffer are not ordered starting from subject to issuer.
 *   The error code will be %GNUTLS_E_CERTIFICATE_LIST_UNSORTED.
 * @GNUTLS_X509_CRT_LIST_SORT: Sort the certificate chain if unsorted.
 *
 * Enumeration of different certificate import flags.
 */
typedef enum gnutls_certificate_import_flags {
	GNUTLS_X509_CRT_LIST_IMPORT_FAIL_IF_EXCEED = 1,
	GNUTLS_X509_CRT_LIST_FAIL_IF_UNSORTED = 1<<1,
	GNUTLS_X509_CRT_LIST_SORT = 1<<2
} gnutls_certificate_import_flags;

int gnutls_x509_crt_init(gnutls_x509_crt_t * cert);
void gnutls_x509_crt_deinit(gnutls_x509_crt_t cert);

/**
 * gnutls_certificate_import_flags:
 * @GNUTLS_X509_CRT_FLAG_IGNORE_SANITY: Ignore any sanity checks at the
 *   import of the certificate; i.e., ignore checks such as version/field
 *   matching and strict time field checks. Intended to be used for debugging.
 *
 * Enumeration of different certificate flags.
 */
typedef enum gnutls_x509_crt_flags {
	GNUTLS_X509_CRT_FLAG_IGNORE_SANITY = 1
} gnutls_x509_crt_flags;
void gnutls_x509_crt_set_flags(gnutls_x509_crt_t cert, unsigned flags);

unsigned gnutls_x509_crt_equals(gnutls_x509_crt_t cert1, gnutls_x509_crt_t cert2);
unsigned gnutls_x509_crt_equals2(gnutls_x509_crt_t cert1, const gnutls_datum_t * der);

int gnutls_x509_crt_import(gnutls_x509_crt_t cert,
			   const gnutls_datum_t * data,
			   gnutls_x509_crt_fmt_t format);
int gnutls_x509_crt_list_import2(gnutls_x509_crt_t ** certs,
				 unsigned int *size,
				 const gnutls_datum_t * data,
				 gnutls_x509_crt_fmt_t format,
				 unsigned int flags);
int gnutls_x509_crt_list_import(gnutls_x509_crt_t * certs,
				unsigned int *cert_max,
				const gnutls_datum_t * data,
				gnutls_x509_crt_fmt_t format,
				unsigned int flags);

int gnutls_x509_crt_import_url(gnutls_x509_crt_t crt,
				      const char *url, unsigned int flags
				      /* GNUTLS_PKCS11_OBJ_FLAG_* */
    );

int
gnutls_x509_crt_list_import_url(gnutls_x509_crt_t **certs,
				unsigned int *size,
				const char *url,
				gnutls_pin_callback_t pin_fn,
				void *pin_fn_userdata,
				unsigned int flags);

int gnutls_x509_crt_export(gnutls_x509_crt_t cert,
			   gnutls_x509_crt_fmt_t format,
			   void *output_data, size_t * output_data_size);
int gnutls_x509_crt_export2(gnutls_x509_crt_t cert,
			    gnutls_x509_crt_fmt_t format,
			    gnutls_datum_t * out);
int gnutls_x509_crt_get_private_key_usage_period(gnutls_x509_crt_t
						 cert,
						 time_t *
						 activation,
						 time_t *
						 expiration, unsigned int
						 *critical);

int gnutls_x509_crt_get_issuer_dn(gnutls_x509_crt_t cert,
				  char *buf, size_t * buf_size);
int gnutls_x509_crt_get_issuer_dn2(gnutls_x509_crt_t cert,
				   gnutls_datum_t * dn);
int gnutls_x509_crt_get_issuer_dn3(gnutls_x509_crt_t cert,
				   gnutls_datum_t * dn, unsigned flags);
int gnutls_x509_crt_get_issuer_dn_oid(gnutls_x509_crt_t cert,
				      unsigned indx, void *oid,
				      size_t * oid_size);
int gnutls_x509_crt_get_issuer_dn_by_oid(gnutls_x509_crt_t cert,
					 const char *oid, unsigned indx,
					 unsigned int raw_flag,
					 void *buf, size_t * buf_size);

int gnutls_x509_crt_get_dn(gnutls_x509_crt_t cert, char *buf,
			   size_t * buf_size);
int gnutls_x509_crt_get_dn2(gnutls_x509_crt_t cert, gnutls_datum_t * dn);
int gnutls_x509_crt_get_dn3(gnutls_x509_crt_t cert, gnutls_datum_t * dn, unsigned flags);

int gnutls_x509_crt_get_dn_oid(gnutls_x509_crt_t cert, unsigned indx,
			       void *oid, size_t * oid_size);
int gnutls_x509_crt_get_dn_by_oid(gnutls_x509_crt_t cert,
				  const char *oid, unsigned indx,
				  unsigned int raw_flag, void *buf,
				  size_t * buf_size);
unsigned gnutls_x509_crt_check_hostname(gnutls_x509_crt_t cert,
				   const char *hostname);
unsigned gnutls_x509_crt_check_hostname2(gnutls_x509_crt_t cert,
					 const char *hostname, unsigned int flags);
unsigned
gnutls_x509_crt_check_email(gnutls_x509_crt_t cert,
			    const char *email, unsigned int flags);

unsigned
gnutls_x509_crt_check_ip(gnutls_x509_crt_t cert,
			 const unsigned char *ip, unsigned int ip_size,
			 unsigned int flags);

int gnutls_x509_crt_get_signature_algorithm(gnutls_x509_crt_t cert);
int gnutls_x509_crt_get_signature(gnutls_x509_crt_t cert,
				  char *sig, size_t * sizeof_sig);
int gnutls_x509_crt_get_version(gnutls_x509_crt_t cert);

int gnutls_x509_crt_get_pk_oid(gnutls_x509_crt_t cert, char *oid, size_t *oid_size);
int gnutls_x509_crt_get_signature_oid(gnutls_x509_crt_t cert, char *oid, size_t *oid_size);

/**
 * gnutls_keyid_flags_t:
 * @GNUTLS_KEYID_USE_SHA1: Use SHA1 as the key ID algorithm (default).
 * @GNUTLS_KEYID_USE_SHA256: Use SHA256 as the key ID algorithm.
 * @GNUTLS_KEYID_USE_SHA512: Use SHA512 as the key ID algorithm.
 * @GNUTLS_KEYID_USE_BEST_KNOWN: Use the best known algorithm to calculate key ID. Using that option will make your program behavior depend on the version of gnutls linked with. That option has a cap of 64-bytes key IDs.
 *
 * Enumeration of different flags for the key ID functions.
 
 */
typedef enum {
	GNUTLS_KEYID_USE_SHA1 = 0,
	GNUTLS_KEYID_USE_SHA256 = (1<<0),
	GNUTLS_KEYID_USE_SHA512 = (1<<1),
	GNUTLS_KEYID_USE_BEST_KNOWN = (1<<30)
} gnutls_keyid_flags_t;
int gnutls_x509_crt_get_key_id(gnutls_x509_crt_t crt,
			       unsigned int flags,
			       unsigned char *output_data,
			       size_t * output_data_size);

int gnutls_x509_crt_set_private_key_usage_period(gnutls_x509_crt_t
						 crt,
						 time_t activation,
						 time_t expiration);
int gnutls_x509_crt_set_authority_key_id(gnutls_x509_crt_t cert,
					 const void *id, size_t id_size);
int gnutls_x509_crt_get_authority_key_id(gnutls_x509_crt_t cert,
					 void *id,
					 size_t * id_size,
					 unsigned int *critical);
int gnutls_x509_crt_get_authority_key_gn_serial(gnutls_x509_crt_t
						cert,
						unsigned int seq,
						void *alt,
						size_t * alt_size,
						unsigned int
						*alt_type,
						void *serial,
						size_t *
						serial_size, unsigned int
						*critical);

int gnutls_x509_crt_get_subject_key_id(gnutls_x509_crt_t cert,
				       void *ret,
				       size_t * ret_size,
				       unsigned int *critical);

int gnutls_x509_crt_get_subject_unique_id(gnutls_x509_crt_t crt,
					  char *buf, size_t * buf_size);

int gnutls_x509_crt_get_issuer_unique_id(gnutls_x509_crt_t crt,
					 char *buf, size_t * buf_size);

void gnutls_x509_crt_set_pin_function(gnutls_x509_crt_t crt,
				      gnutls_pin_callback_t fn,
				      void *userdata);

  /**
   * gnutls_info_access_what_t:
   * @GNUTLS_IA_ACCESSMETHOD_OID: Get accessMethod OID.
   * @GNUTLS_IA_ACCESSLOCATION_GENERALNAME_TYPE: Get accessLocation name type.
   * @GNUTLS_IA_URI: Get accessLocation URI value.
   * @GNUTLS_IA_OCSP_URI: get accessLocation URI value for OCSP.
   * @GNUTLS_IA_CAISSUERS_URI: get accessLocation URI value for caIssuers.
   *
   * Enumeration of types for the @what parameter of
   * gnutls_x509_crt_get_authority_info_access().
   */
typedef enum gnutls_info_access_what_t {
	GNUTLS_IA_ACCESSMETHOD_OID = 1,
	GNUTLS_IA_ACCESSLOCATION_GENERALNAME_TYPE = 2,
	/* use 100-108 for the generalName types, populate as needed */
	GNUTLS_IA_URI = 106,
	/* quick-access variants that match both OID and name type. */
	GNUTLS_IA_UNKNOWN = 10000,
	GNUTLS_IA_OCSP_URI = 10006,
	GNUTLS_IA_CAISSUERS_URI = 10106
} gnutls_info_access_what_t;

int gnutls_x509_crt_get_authority_info_access(gnutls_x509_crt_t
					      crt,
					      unsigned int seq,
					      int what,
					      gnutls_datum_t *
					      data, unsigned int
					      *critical);

typedef struct gnutls_name_constraints_st *gnutls_x509_name_constraints_t;

unsigned gnutls_x509_name_constraints_check(gnutls_x509_name_constraints_t nc,
				       gnutls_x509_subject_alt_name_t type,
				       const gnutls_datum_t * name);
unsigned gnutls_x509_name_constraints_check_crt(gnutls_x509_name_constraints_t nc,
				       gnutls_x509_subject_alt_name_t type,
				       gnutls_x509_crt_t crt);

int gnutls_x509_name_constraints_init(gnutls_x509_name_constraints_t *nc);
void gnutls_x509_name_constraints_deinit(gnutls_x509_name_constraints_t nc);

#define GNUTLS_EXT_FLAG_APPEND 1

#define GNUTLS_NAME_CONSTRAINTS_FLAG_APPEND GNUTLS_EXT_FLAG_APPEND
int gnutls_x509_crt_get_name_constraints(gnutls_x509_crt_t crt,
					 gnutls_x509_name_constraints_t nc,
					 unsigned int flags,
					 unsigned int *critical);
int gnutls_x509_name_constraints_add_permitted(gnutls_x509_name_constraints_t nc,
					       gnutls_x509_subject_alt_name_t type,
					       const gnutls_datum_t * name);
int gnutls_x509_name_constraints_add_excluded(gnutls_x509_name_constraints_t nc,
					      gnutls_x509_subject_alt_name_t type,
					      const gnutls_datum_t * name);
int gnutls_x509_crt_set_name_constraints(gnutls_x509_crt_t crt, 
					 gnutls_x509_name_constraints_t nc,
					 unsigned int critical);
int gnutls_x509_name_constraints_get_permitted(gnutls_x509_name_constraints_t nc,
				     unsigned idx,
				     unsigned *type, gnutls_datum_t * name);
int gnutls_x509_name_constraints_get_excluded(gnutls_x509_name_constraints_t nc,
				     unsigned idx,
				     unsigned *type, gnutls_datum_t * name);
int gnutls_x509_cidr_to_rfc5280(const char *cidr, gnutls_datum_t *cidr_rfc5280);


#define GNUTLS_CRL_REASON_SUPERSEEDED GNUTLS_CRL_REASON_SUPERSEDED,
  /**
   * gnutls_x509_crl_reason_flags_t:
   * @GNUTLS_CRL_REASON_PRIVILEGE_WITHDRAWN: The privileges were withdrawn from the owner.
   * @GNUTLS_CRL_REASON_CERTIFICATE_HOLD: The certificate is on hold.
   * @GNUTLS_CRL_REASON_CESSATION_OF_OPERATION: The end-entity is no longer operating.
   * @GNUTLS_CRL_REASON_SUPERSEDED: There is a newer certificate of the owner.
   * @GNUTLS_CRL_REASON_AFFILIATION_CHANGED: The end-entity affiliation has changed.
   * @GNUTLS_CRL_REASON_CA_COMPROMISE: The CA was compromised.
   * @GNUTLS_CRL_REASON_KEY_COMPROMISE: The certificate's key was compromised.
   * @GNUTLS_CRL_REASON_UNUSED: The key was never used.
   * @GNUTLS_CRL_REASON_AA_COMPROMISE: AA compromised.
   *
   * Enumeration of types for the CRL revocation reasons. 
   */
typedef enum gnutls_x509_crl_reason_flags_t {
	GNUTLS_CRL_REASON_UNSPECIFIED = 0,
	GNUTLS_CRL_REASON_PRIVILEGE_WITHDRAWN = 1,
	GNUTLS_CRL_REASON_CERTIFICATE_HOLD = 2,
	GNUTLS_CRL_REASON_CESSATION_OF_OPERATION = 4,
	GNUTLS_CRL_REASON_SUPERSEDED = 8,
	GNUTLS_CRL_REASON_AFFILIATION_CHANGED = 16,
	GNUTLS_CRL_REASON_CA_COMPROMISE = 32,
	GNUTLS_CRL_REASON_KEY_COMPROMISE = 64,
	GNUTLS_CRL_REASON_UNUSED = 128,
	GNUTLS_CRL_REASON_AA_COMPROMISE = 32768
} gnutls_x509_crl_reason_flags_t;

int gnutls_x509_crt_get_crl_dist_points(gnutls_x509_crt_t cert,
					unsigned int seq,
					void *ret,
					size_t * ret_size,
					unsigned int *reason_flags,
					unsigned int *critical);
int gnutls_x509_crt_set_crl_dist_points2(gnutls_x509_crt_t crt,
					 gnutls_x509_subject_alt_name_t
					 type, const void *data,
					 unsigned int data_size,
					 unsigned int reason_flags);
int gnutls_x509_crt_set_crl_dist_points(gnutls_x509_crt_t crt,
					gnutls_x509_subject_alt_name_t
					type,
					const void *data_string,
					unsigned int reason_flags);
int gnutls_x509_crt_cpy_crl_dist_points(gnutls_x509_crt_t dst,
					gnutls_x509_crt_t src);

int gnutls_x509_crl_sign(gnutls_x509_crl_t crl,
			 gnutls_x509_crt_t issuer,
			 gnutls_x509_privkey_t issuer_key);

int gnutls_x509_crl_sign2(gnutls_x509_crl_t crl,
			  gnutls_x509_crt_t issuer,
			  gnutls_x509_privkey_t issuer_key,
			  gnutls_digest_algorithm_t dig,
			  unsigned int flags);

time_t gnutls_x509_crt_get_activation_time(gnutls_x509_crt_t cert);

/* This macro is deprecated and defunc; do not use */
#define GNUTLS_X509_NO_WELL_DEFINED_EXPIRATION ((time_t)4294197631)

time_t gnutls_x509_crt_get_expiration_time(gnutls_x509_crt_t cert);
int gnutls_x509_crt_get_serial(gnutls_x509_crt_t cert,
			       void *result, size_t * result_size);

typedef struct gnutls_x509_spki_st *gnutls_x509_spki_t;

int gnutls_x509_spki_init(gnutls_x509_spki_t *spki);
void gnutls_x509_spki_deinit(gnutls_x509_spki_t spki);

int gnutls_x509_spki_get_rsa_pss_params(gnutls_x509_spki_t spki,
			gnutls_digest_algorithm_t *dig, unsigned int *salt_size);

void gnutls_x509_spki_set_rsa_pss_params(gnutls_x509_spki_t spki,
			gnutls_digest_algorithm_t dig, unsigned int salt_size);

int gnutls_x509_crt_get_pk_algorithm(gnutls_x509_crt_t cert,
				     unsigned int *bits);
int gnutls_x509_crt_set_spki(gnutls_x509_crt_t crt, const gnutls_x509_spki_t spki,
			     unsigned int flags);
int gnutls_x509_crt_get_spki(gnutls_x509_crt_t cert, gnutls_x509_spki_t spki,
			     unsigned int flags);

int gnutls_x509_crt_get_pk_rsa_raw(gnutls_x509_crt_t crt,
				   gnutls_datum_t * m, gnutls_datum_t * e);
int gnutls_x509_crt_get_pk_dsa_raw(gnutls_x509_crt_t crt,
				   gnutls_datum_t * p,
				   gnutls_datum_t * q,
				   gnutls_datum_t * g, gnutls_datum_t * y);
int gnutls_x509_crt_get_pk_ecc_raw(gnutls_x509_crt_t crt,
				   gnutls_ecc_curve_t * curve,
				   gnutls_datum_t * x,
				   gnutls_datum_t * y);
int gnutls_x509_crt_get_pk_gost_raw(gnutls_x509_crt_t crt,
				    gnutls_ecc_curve_t * curve,
				    gnutls_digest_algorithm_t * digest,
				    gnutls_gost_paramset_t *paramset,
				    gnutls_datum_t * x, gnutls_datum_t * y);

int gnutls_x509_crt_get_subject_alt_name(gnutls_x509_crt_t cert,
					 unsigned int seq,
					 void *san,
					 size_t * san_size,
					 unsigned int *critical);
int gnutls_x509_crt_get_subject_alt_name2(gnutls_x509_crt_t cert,
					  unsigned int seq,
					  void *san,
					  size_t * san_size,
					  unsigned int *san_type,
					  unsigned int *critical);

int gnutls_x509_crt_get_subject_alt_othername_oid(gnutls_x509_crt_t
						  cert,
						  unsigned int seq,
						  void *oid,
						  size_t * oid_size);

int gnutls_x509_crt_get_issuer_alt_name(gnutls_x509_crt_t cert,
					unsigned int seq,
					void *ian,
					size_t * ian_size,
					unsigned int *critical);
int gnutls_x509_crt_get_issuer_alt_name2(gnutls_x509_crt_t cert,
					 unsigned int seq,
					 void *ian,
					 size_t * ian_size,
					 unsigned int *ian_type,
					 unsigned int *critical);

int gnutls_x509_crt_get_issuer_alt_othername_oid(gnutls_x509_crt_t
						 cert,
						 unsigned int seq,
						 void *ret,
						 size_t * ret_size);

int gnutls_x509_crt_get_ca_status(gnutls_x509_crt_t cert,
				  unsigned int *critical);
int gnutls_x509_crt_get_basic_constraints(gnutls_x509_crt_t cert,
					  unsigned int *critical,
					  unsigned int *ca, int *pathlen);

/* The key_usage flags are defined in gnutls.h. They are the
 * GNUTLS_KEY_* definitions.
 */
int gnutls_x509_crt_get_key_usage(gnutls_x509_crt_t cert,
				  unsigned int *key_usage,
				  unsigned int *critical);
int gnutls_x509_crt_set_key_usage(gnutls_x509_crt_t crt,
				  unsigned int usage);
int gnutls_x509_crt_set_authority_info_access(gnutls_x509_crt_t
					      crt, int what,
					      gnutls_datum_t * data);

int gnutls_x509_crt_get_inhibit_anypolicy(gnutls_x509_crt_t cert,
				  unsigned int *skipcerts,
				  unsigned int *critical);
int
gnutls_x509_crt_set_inhibit_anypolicy(gnutls_x509_crt_t crt, unsigned int skipcerts);

int gnutls_x509_crt_get_proxy(gnutls_x509_crt_t cert,
			      unsigned int *critical,
			      int *pathlen,
			      char **policyLanguage,
			      char **policy, size_t * sizeof_policy);


typedef struct gnutls_x509_tlsfeatures_st *gnutls_x509_tlsfeatures_t;

int gnutls_x509_tlsfeatures_init(gnutls_x509_tlsfeatures_t *features);
void gnutls_x509_tlsfeatures_deinit(gnutls_x509_tlsfeatures_t);
int gnutls_x509_tlsfeatures_get(gnutls_x509_tlsfeatures_t f, unsigned idx, unsigned int *feature);

int gnutls_x509_crt_set_tlsfeatures(gnutls_x509_crt_t crt,
				    gnutls_x509_tlsfeatures_t features);

int gnutls_x509_crt_get_tlsfeatures(gnutls_x509_crt_t cert,
				    gnutls_x509_tlsfeatures_t features,
				    unsigned int flags,
				    unsigned int *critical);

unsigned gnutls_x509_tlsfeatures_check_crt(gnutls_x509_tlsfeatures_t feat,
				           gnutls_x509_crt_t crt);


#define GNUTLS_MAX_QUALIFIERS 8

  /**
   * gnutls_x509_qualifier_t:
   * @GNUTLS_X509_QUALIFIER_UNKNOWN: Unknown qualifier.
   * @GNUTLS_X509_QUALIFIER_URI: A URL
   * @GNUTLS_X509_QUALIFIER_NOICE: A text notice.
   *
   * Enumeration of types for the X.509 qualifiers, of the certificate policy extension. 
   */
typedef enum gnutls_x509_qualifier_t {
	GNUTLS_X509_QUALIFIER_UNKNOWN = 0, GNUTLS_X509_QUALIFIER_URI,
	GNUTLS_X509_QUALIFIER_NOTICE
} gnutls_x509_qualifier_t;

typedef struct gnutls_x509_policy_st {
	char *oid;
	unsigned int qualifiers;
	struct {
		gnutls_x509_qualifier_t type;
		char *data;
		unsigned int size;
	} qualifier[GNUTLS_MAX_QUALIFIERS];
} gnutls_x509_policy_st;

void gnutls_x509_policy_release(struct gnutls_x509_policy_st
				*policy);
int gnutls_x509_crt_get_policy(gnutls_x509_crt_t crt, unsigned indx, struct gnutls_x509_policy_st
			       *policy, unsigned int *critical);
int gnutls_x509_crt_set_policy(gnutls_x509_crt_t crt, const struct gnutls_x509_policy_st
			       *policy, unsigned int critical);

int gnutls_x509_dn_oid_known(const char *oid);

#define GNUTLS_X509_DN_OID_RETURN_OID 1
const char *gnutls_x509_dn_oid_name(const char *oid, unsigned int flags);

	/* Read extensions by OID. */
int gnutls_x509_crt_get_extension_oid(gnutls_x509_crt_t cert,
				      unsigned indx, void *oid,
				      size_t * oid_size);
int gnutls_x509_crt_get_extension_by_oid(gnutls_x509_crt_t cert,
					 const char *oid, unsigned indx,
					 void *buf,
					 size_t * buf_size,
					 unsigned int *critical);

int gnutls_x509_crq_get_signature_algorithm(gnutls_x509_crq_t crq);
int
gnutls_x509_crq_get_extension_by_oid2(gnutls_x509_crq_t crq,
				     const char *oid, unsigned indx,
				     gnutls_datum_t *output,
				     unsigned int *critical);

	/* Read extensions by sequence number. */
int gnutls_x509_crt_get_extension_info(gnutls_x509_crt_t cert,
				       unsigned indx, void *oid,
				       size_t * oid_size,
				       unsigned int *critical);
int gnutls_x509_crt_get_extension_data(gnutls_x509_crt_t cert,
				       unsigned indx, void *data,
				       size_t * sizeof_data);
int
gnutls_x509_crt_get_extension_data2(gnutls_x509_crt_t cert,
			       unsigned indx, gnutls_datum_t * data);


int gnutls_x509_crt_set_extension_by_oid(gnutls_x509_crt_t crt,
					 const char *oid,
					 const void *buf,
					 size_t sizeof_buf,
					 unsigned int critical);

/* X.509 Certificate writing.
 */
int gnutls_x509_crt_set_dn(gnutls_x509_crt_t crt, const char *dn,
			   const char **err);

int gnutls_x509_crt_set_dn_by_oid(gnutls_x509_crt_t crt,
				  const char *oid,
				  unsigned int raw_flag,
				  const void *name,
				  unsigned int sizeof_name);
int gnutls_x509_crt_set_issuer_dn_by_oid(gnutls_x509_crt_t crt,
					 const char *oid,
					 unsigned int raw_flag,
					 const void *name,
					 unsigned int sizeof_name);
int gnutls_x509_crt_set_issuer_dn(gnutls_x509_crt_t crt,
				  const char *dn, const char **err);

int gnutls_x509_crt_set_version(gnutls_x509_crt_t crt,
				unsigned int version);
int gnutls_x509_crt_set_key(gnutls_x509_crt_t crt,
			    gnutls_x509_privkey_t key);
int gnutls_x509_crt_set_ca_status(gnutls_x509_crt_t crt, unsigned int ca);
int gnutls_x509_crt_set_basic_constraints(gnutls_x509_crt_t crt,
					  unsigned int ca,
					  int pathLenConstraint);

int
gnutls_x509_crt_set_subject_unique_id(gnutls_x509_crt_t cert, const void *id,
			   size_t id_size);
int
gnutls_x509_crt_set_issuer_unique_id(gnutls_x509_crt_t cert, const void *id,
			   size_t id_size);

int gnutls_x509_crt_set_subject_alternative_name(gnutls_x509_crt_t
						 crt,
						 gnutls_x509_subject_alt_name_t
						 type, const char
						 *data_string);
int gnutls_x509_crt_set_subject_alt_name(gnutls_x509_crt_t crt,
					 gnutls_x509_subject_alt_name_t
					 type, const void *data,
					 unsigned int data_size,
					 unsigned int flags);

int
gnutls_x509_crt_set_subject_alt_othername(gnutls_x509_crt_t crt,
				     const char *oid,
				     const void *data,
				     unsigned int data_size,
				     unsigned int flags);

int gnutls_x509_crt_set_issuer_alt_name(gnutls_x509_crt_t crt,
					 gnutls_x509_subject_alt_name_t
					 type, const void *data,
					 unsigned int data_size,
					 unsigned int flags);

int
gnutls_x509_crt_set_issuer_alt_othername(gnutls_x509_crt_t crt,
				     const char *oid,
				     const void *data,
				     unsigned int data_size,
				     unsigned int flags);

int gnutls_x509_crt_sign(gnutls_x509_crt_t crt,
			 gnutls_x509_crt_t issuer,
			 gnutls_x509_privkey_t issuer_key);
int gnutls_x509_crt_sign2(gnutls_x509_crt_t crt,
			  gnutls_x509_crt_t issuer,
			  gnutls_x509_privkey_t issuer_key,
			  gnutls_digest_algorithm_t dig,
			  unsigned int flags);
int gnutls_x509_crt_set_activation_time(gnutls_x509_crt_t cert,
					time_t act_time);
int gnutls_x509_crt_set_expiration_time(gnutls_x509_crt_t cert,
					time_t exp_time);
int gnutls_x509_crt_set_serial(gnutls_x509_crt_t cert,
			       const void *serial, size_t serial_size);

int gnutls_x509_crt_set_subject_key_id(gnutls_x509_crt_t cert,
				       const void *id, size_t id_size);

int gnutls_x509_crt_set_proxy_dn(gnutls_x509_crt_t crt,
				 gnutls_x509_crt_t eecrt,
				 unsigned int raw_flag,
				 const void *name,
				 unsigned int sizeof_name);
int gnutls_x509_crt_set_proxy(gnutls_x509_crt_t crt,
			      int pathLenConstraint,
			      const char *policyLanguage,
			      const char *policy, size_t sizeof_policy);

int gnutls_x509_crt_print(gnutls_x509_crt_t cert,
			  gnutls_certificate_print_formats_t
			  format, gnutls_datum_t * out);
int gnutls_x509_crl_print(gnutls_x509_crl_t crl,
			  gnutls_certificate_print_formats_t
			  format, gnutls_datum_t * out);

	/* Access to internal Certificate fields.
	 */
int gnutls_x509_crt_get_raw_issuer_dn(gnutls_x509_crt_t cert,
				      gnutls_datum_t * start);
int gnutls_x509_crt_get_raw_dn(gnutls_x509_crt_t cert,
			       gnutls_datum_t * start);

/* RDN handling.
 */
int gnutls_x509_rdn_get(const gnutls_datum_t * idn,
			char *buf, size_t * sizeof_buf);
int
gnutls_x509_rdn_get2(const gnutls_datum_t * idn,
                     gnutls_datum_t *str, unsigned flags);

int gnutls_x509_rdn_get_oid(const gnutls_datum_t * idn,
			    unsigned indx, void *buf, size_t * sizeof_buf);

int gnutls_x509_rdn_get_by_oid(const gnutls_datum_t * idn,
			       const char *oid, unsigned indx,
			       unsigned int raw_flag, void *buf,
			       size_t * sizeof_buf);

typedef struct gnutls_x509_dn_st *gnutls_x509_dn_t;

typedef struct gnutls_x509_ava_st {
	gnutls_datum_t oid;
	gnutls_datum_t value;
	unsigned long value_tag;
} gnutls_x509_ava_st;

int gnutls_x509_crt_get_subject(gnutls_x509_crt_t cert,
				gnutls_x509_dn_t * dn);
int gnutls_x509_crt_get_issuer(gnutls_x509_crt_t cert,
			       gnutls_x509_dn_t * dn);
int gnutls_x509_dn_get_rdn_ava(gnutls_x509_dn_t dn, int irdn,
			       int iava, gnutls_x509_ava_st * ava);

int gnutls_x509_dn_get_str(gnutls_x509_dn_t dn, gnutls_datum_t *str);

#define GNUTLS_X509_DN_FLAG_COMPAT 1
int gnutls_x509_dn_get_str2(gnutls_x509_dn_t dn, gnutls_datum_t *str, unsigned flags);

int
gnutls_x509_dn_set_str(gnutls_x509_dn_t dn, const char *str, const char **err);

int gnutls_x509_dn_init(gnutls_x509_dn_t * dn);

int gnutls_x509_dn_import(gnutls_x509_dn_t dn,
			  const gnutls_datum_t * data);

int gnutls_x509_dn_export(gnutls_x509_dn_t dn,
			  gnutls_x509_crt_fmt_t format,
			  void *output_data, size_t * output_data_size);
int gnutls_x509_dn_export2(gnutls_x509_dn_t dn,
			   gnutls_x509_crt_fmt_t format,
			   gnutls_datum_t * out);

void gnutls_x509_dn_deinit(gnutls_x509_dn_t dn);


/* CRL handling functions.
 */
int gnutls_x509_crl_init(gnutls_x509_crl_t * crl);
void gnutls_x509_crl_deinit(gnutls_x509_crl_t crl);

int gnutls_x509_crl_import(gnutls_x509_crl_t crl,
			   const gnutls_datum_t * data,
			   gnutls_x509_crt_fmt_t format);
int gnutls_x509_crl_export(gnutls_x509_crl_t crl,
			   gnutls_x509_crt_fmt_t format,
			   void *output_data, size_t * output_data_size);
int gnutls_x509_crl_export2(gnutls_x509_crl_t crl,
			    gnutls_x509_crt_fmt_t format,
			    gnutls_datum_t * out);

int
gnutls_x509_crl_get_raw_issuer_dn(gnutls_x509_crl_t crl,
				  gnutls_datum_t * dn);

int gnutls_x509_crl_get_issuer_dn(gnutls_x509_crl_t crl,
				  char *buf, size_t * sizeof_buf);
int gnutls_x509_crl_get_issuer_dn2(gnutls_x509_crl_t crl,
				   gnutls_datum_t * dn);
int gnutls_x509_crl_get_issuer_dn3(gnutls_x509_crl_t crl,
				   gnutls_datum_t * dn, unsigned flags);

int gnutls_x509_crl_get_issuer_dn_by_oid(gnutls_x509_crl_t crl,
					 const char *oid, unsigned indx,
					 unsigned int raw_flag,
					 void *buf, size_t * sizeof_buf);
int gnutls_x509_crl_get_dn_oid(gnutls_x509_crl_t crl, unsigned indx,
			       void *oid, size_t * sizeof_oid);

int gnutls_x509_crl_get_signature_algorithm(gnutls_x509_crl_t crl);
int gnutls_x509_crl_get_signature(gnutls_x509_crl_t crl,
				  char *sig, size_t * sizeof_sig);
int gnutls_x509_crl_get_version(gnutls_x509_crl_t crl);

int gnutls_x509_crl_get_signature_oid(gnutls_x509_crl_t crl, char *oid, size_t *oid_size);

time_t gnutls_x509_crl_get_this_update(gnutls_x509_crl_t crl);
time_t gnutls_x509_crl_get_next_update(gnutls_x509_crl_t crl);

int gnutls_x509_crl_get_crt_count(gnutls_x509_crl_t crl);
int gnutls_x509_crl_get_crt_serial(gnutls_x509_crl_t crl, unsigned indx,
				   unsigned char *serial,
				   size_t * serial_size, time_t * t);

typedef struct gnutls_x509_crl_iter * gnutls_x509_crl_iter_t;

int gnutls_x509_crl_iter_crt_serial(gnutls_x509_crl_t crl,
				    gnutls_x509_crl_iter_t *,
				    unsigned char *serial,
				    size_t * serial_size, time_t * t);

void gnutls_x509_crl_iter_deinit(gnutls_x509_crl_iter_t);

#define gnutls_x509_crl_get_certificate_count gnutls_x509_crl_get_crt_count
#define gnutls_x509_crl_get_certificate gnutls_x509_crl_get_crt_serial

unsigned gnutls_x509_crl_check_issuer(gnutls_x509_crl_t crl,
				 gnutls_x509_crt_t issuer);

int gnutls_x509_crl_list_import2(gnutls_x509_crl_t ** crls,
				 unsigned int *size,
				 const gnutls_datum_t * data,
				 gnutls_x509_crt_fmt_t format,
				 unsigned int flags);

int gnutls_x509_crl_list_import(gnutls_x509_crl_t * crls,
				unsigned int *crl_max,
				const gnutls_datum_t * data,
				gnutls_x509_crt_fmt_t format,
				unsigned int flags);
/* CRL writing.
 */
int gnutls_x509_crl_set_version(gnutls_x509_crl_t crl,
				unsigned int version);
int gnutls_x509_crl_set_this_update(gnutls_x509_crl_t crl,
				    time_t act_time);
int gnutls_x509_crl_set_next_update(gnutls_x509_crl_t crl,
				    time_t exp_time);
int gnutls_x509_crl_set_crt_serial(gnutls_x509_crl_t crl,
				   const void *serial,
				   size_t serial_size,
				   time_t revocation_time);
int gnutls_x509_crl_set_crt(gnutls_x509_crl_t crl,
			    gnutls_x509_crt_t crt, time_t revocation_time);

int gnutls_x509_crl_get_authority_key_id(gnutls_x509_crl_t crl,
					 void *id,
					 size_t * id_size,
					 unsigned int *critical);
int gnutls_x509_crl_get_authority_key_gn_serial(gnutls_x509_crl_t
						crl,
						unsigned int seq,
						void *alt,
						size_t * alt_size,
						unsigned int
						*alt_type,
						void *serial,
						size_t *
						serial_size, unsigned int
						*critical);

int gnutls_x509_crl_get_number(gnutls_x509_crl_t crl, void *ret,
			       size_t * ret_size, unsigned int *critical);

int gnutls_x509_crl_get_extension_oid(gnutls_x509_crl_t crl,
				      unsigned indx, void *oid,
				      size_t * sizeof_oid);

int gnutls_x509_crl_get_extension_info(gnutls_x509_crl_t crl,
				       unsigned indx, void *oid,
				       size_t * sizeof_oid,
				       unsigned int *critical);

int gnutls_x509_crl_get_extension_data(gnutls_x509_crl_t crl,
				       unsigned indx, void *data,
				       size_t * sizeof_data);
int
gnutls_x509_crl_get_extension_data2(gnutls_x509_crl_t crl,
			       unsigned indx, gnutls_datum_t * data);

int gnutls_x509_crl_set_authority_key_id(gnutls_x509_crl_t crl,
					 const void *id, size_t id_size);

int gnutls_x509_crl_set_number(gnutls_x509_crl_t crl,
			       const void *nr, size_t nr_size);


/* X.509 Certificate verification functions.
 */

/**
 * gnutls_certificate_verify_flags:
 * @GNUTLS_VERIFY_DISABLE_CA_SIGN: If set a signer does not have to be
 *   a certificate authority. This flag should normally be disabled,
 *   unless you know what this means.
 * @GNUTLS_VERIFY_DISABLE_TRUSTED_TIME_CHECKS: If set a signer in the trusted
 *   list is never checked for expiration or activation.
 * @GNUTLS_VERIFY_DO_NOT_ALLOW_X509_V1_CA_CRT: Do not allow trusted CA
 *   certificates that have version 1.  This option is to be used
 *   to deprecate all certificates of version 1.
 * @GNUTLS_VERIFY_DO_NOT_ALLOW_SAME: If a certificate is not signed by
 *   anyone trusted but exists in the trusted CA list do not treat it
 *   as trusted.
 * @GNUTLS_VERIFY_ALLOW_UNSORTED_CHAIN: A certificate chain is tolerated
 *   if unsorted (the case with many TLS servers out there). This is the
 *   default since GnuTLS 3.1.4.
 * @GNUTLS_VERIFY_DO_NOT_ALLOW_UNSORTED_CHAIN: Do not tolerate an unsorted
 *   certificate chain.
 * @GNUTLS_VERIFY_ALLOW_ANY_X509_V1_CA_CRT: Allow CA certificates that
 *   have version 1 (both root and intermediate). This might be
 *   dangerous since those haven't the basicConstraints
 *   extension. 
 * @GNUTLS_VERIFY_ALLOW_SIGN_RSA_MD2: Allow certificates to be signed
 *   using the broken MD2 algorithm.
 * @GNUTLS_VERIFY_ALLOW_SIGN_RSA_MD5: Allow certificates to be signed
 *   using the broken MD5 algorithm.
 * @GNUTLS_VERIFY_ALLOW_SIGN_WITH_SHA1: Allow certificates to be signed
 *   using the broken SHA1 hash algorithm.
 * @GNUTLS_VERIFY_ALLOW_BROKEN: Allow certificates to be signed
 *   using any broken algorithm.
 * @GNUTLS_VERIFY_DISABLE_TIME_CHECKS: Disable checking of activation
 *   and expiration validity periods of certificate chains. Don't set
 *   this unless you understand the security implications.
 * @GNUTLS_VERIFY_DISABLE_CRL_CHECKS: Disable checking for validity
 *   using certificate revocation lists or the available OCSP data.
 * @GNUTLS_VERIFY_DO_NOT_ALLOW_WILDCARDS: When including a hostname
 *   check in the verification, do not consider any wildcards.
 * @GNUTLS_VERIFY_DO_NOT_ALLOW_IP_MATCHES: When verifying a hostname
 *   prevent textual IP addresses from matching IP addresses in the
 *   certificate. Treat the input only as a DNS name.
 * @GNUTLS_VERIFY_USE_TLS1_RSA: This indicates that a (raw) RSA signature is provided
 *   as in the TLS 1.0 protocol. Not all functions accept this flag.
 * @GNUTLS_VERIFY_IGNORE_UNKNOWN_CRIT_EXTENSIONS: This signals the verification
 *   process, not to fail on unknown critical extensions.
 *
 * Enumeration of different certificate verify flags. Additional
 * verification profiles can be set using GNUTLS_PROFILE_TO_VFLAGS()
 * and %gnutls_certificate_verification_profiles_t.
 */
typedef enum gnutls_certificate_verify_flags {
	GNUTLS_VERIFY_DISABLE_CA_SIGN = 1 << 0,
	GNUTLS_VERIFY_DO_NOT_ALLOW_IP_MATCHES = 1<<1,
	GNUTLS_VERIFY_DO_NOT_ALLOW_SAME = 1 << 2,
	GNUTLS_VERIFY_ALLOW_ANY_X509_V1_CA_CRT = 1 << 3,
	GNUTLS_VERIFY_ALLOW_SIGN_RSA_MD2 = 1 << 4,
	GNUTLS_VERIFY_ALLOW_SIGN_RSA_MD5 = 1 << 5,
	GNUTLS_VERIFY_DISABLE_TIME_CHECKS = 1 << 6,
	GNUTLS_VERIFY_DISABLE_TRUSTED_TIME_CHECKS = 1 << 7,
	GNUTLS_VERIFY_DO_NOT_ALLOW_X509_V1_CA_CRT = 1 << 8,
	GNUTLS_VERIFY_DISABLE_CRL_CHECKS = 1 << 9,
	GNUTLS_VERIFY_ALLOW_UNSORTED_CHAIN = 1 << 10,
	GNUTLS_VERIFY_DO_NOT_ALLOW_UNSORTED_CHAIN = 1 << 11,
	GNUTLS_VERIFY_DO_NOT_ALLOW_WILDCARDS = 1 << 12,
	GNUTLS_VERIFY_USE_TLS1_RSA = 1 << 13,
	GNUTLS_VERIFY_IGNORE_UNKNOWN_CRIT_EXTENSIONS = 1 << 14,
	GNUTLS_VERIFY_ALLOW_SIGN_WITH_SHA1 = 1 << 15
	/* cannot exceed 2^24 due to GNUTLS_PROFILE_TO_VFLAGS() */
} gnutls_certificate_verify_flags;

#define GNUTLS_VERIFY_ALLOW_BROKEN (GNUTLS_VERIFY_ALLOW_SIGN_RSA_MD2|GNUTLS_VERIFY_ALLOW_SIGN_RSA_MD5)

/**
 * gnutls_certificate_verification_profiles_t:
 * @GNUTLS_PROFILE_UNKNOWN: An invalid/unknown profile.
 * @GNUTLS_PROFILE_VERY_WEAK: A verification profile that
 *  corresponds to @GNUTLS_SEC_PARAM_VERY_WEAK (64 bits)
 * @GNUTLS_PROFILE_LOW: A verification profile that
 *  corresponds to @GNUTLS_SEC_PARAM_LOW (80 bits)
 * @GNUTLS_PROFILE_LEGACY: A verification profile that
 *  corresponds to @GNUTLS_SEC_PARAM_LEGACY (96 bits)
 * @GNUTLS_PROFILE_MEDIUM: A verification profile that
 *  corresponds to @GNUTLS_SEC_PARAM_MEDIUM (112 bits)
 * @GNUTLS_PROFILE_HIGH: A verification profile that
 *  corresponds to @GNUTLS_SEC_PARAM_HIGH (128 bits)
 * @GNUTLS_PROFILE_ULTRA: A verification profile that
 *  corresponds to @GNUTLS_SEC_PARAM_ULTRA (192 bits)
 * @GNUTLS_PROFILE_FUTURE: A verification profile that
 *  corresponds to @GNUTLS_SEC_PARAM_FUTURE (256 bits)
 * @GNUTLS_PROFILE_SUITEB128: A verification profile that
 *  applies the SUITEB128 rules
 * @GNUTLS_PROFILE_SUITEB192: A verification profile that
 *  applies the SUITEB192 rules
 *
 * Enumeration of different certificate verification profiles.
 */
typedef enum gnutls_certificate_verification_profiles_t {
	GNUTLS_PROFILE_UNKNOWN = 0,
	GNUTLS_PROFILE_VERY_WEAK = 1,
	GNUTLS_PROFILE_LOW = 2,
	GNUTLS_PROFILE_LEGACY = 4,
	GNUTLS_PROFILE_MEDIUM = 5,
	GNUTLS_PROFILE_HIGH = 6,
	GNUTLS_PROFILE_ULTRA = 7,
	GNUTLS_PROFILE_FUTURE = 8,
	
	GNUTLS_PROFILE_SUITEB128=32,
	GNUTLS_PROFILE_SUITEB192=33
	/*GNUTLS_PROFILE_MAX=255*/
} gnutls_certificate_verification_profiles_t;

#define GNUTLS_PROFILE_TO_VFLAGS(x) \
	(((unsigned)x)<<24)

#define GNUTLS_VFLAGS_PROFILE_MASK (0xff000000)

#define GNUTLS_VFLAGS_TO_PROFILE(x) \
	((((unsigned)x)>>24)&0xff)

const char *
	gnutls_certificate_verification_profile_get_name(gnutls_certificate_verification_profiles_t id) __GNUTLS_CONST__;
gnutls_certificate_verification_profiles_t gnutls_certificate_verification_profile_get_id(const char *name) __GNUTLS_CONST__;

unsigned gnutls_x509_crt_check_issuer(gnutls_x509_crt_t cert,
				 gnutls_x509_crt_t issuer);

int gnutls_x509_crt_list_verify(const gnutls_x509_crt_t *
				cert_list, unsigned cert_list_length,
				const gnutls_x509_crt_t * CA_list,
				unsigned CA_list_length,
				const gnutls_x509_crl_t * CRL_list,
				unsigned CRL_list_length,
				unsigned int flags, unsigned int *verify);

int gnutls_x509_crt_verify(gnutls_x509_crt_t cert,
			   const gnutls_x509_crt_t * CA_list,
			   unsigned CA_list_length, unsigned int flags,
			   unsigned int *verify);
int gnutls_x509_crl_verify(gnutls_x509_crl_t crl,
			   const gnutls_x509_crt_t * CA_list,
			   unsigned CA_list_length, unsigned int flags,
			   unsigned int *verify);

int
gnutls_x509_crt_verify_data2(gnutls_x509_crt_t crt,
			   gnutls_sign_algorithm_t algo,
			   unsigned int flags,
			   const gnutls_datum_t * data,
			   const gnutls_datum_t * signature);

int gnutls_x509_crt_check_revocation(gnutls_x509_crt_t cert,
				     const gnutls_x509_crl_t *
				     crl_list, unsigned crl_list_length);

int gnutls_x509_crt_get_fingerprint(gnutls_x509_crt_t cert,
				    gnutls_digest_algorithm_t algo,
				    void *buf, size_t * buf_size);

int gnutls_x509_crt_get_key_purpose_oid(gnutls_x509_crt_t cert,
					unsigned indx, void *oid,
					size_t * oid_size,
					unsigned int *critical);
int gnutls_x509_crt_set_key_purpose_oid(gnutls_x509_crt_t cert,
					const void *oid,
					unsigned int critical);

unsigned gnutls_x509_crt_check_key_purpose(gnutls_x509_crt_t cert,
		const char *purpose, unsigned flags);

/* Private key handling.
 */

/* Flags for the gnutls_x509_privkey_export_pkcs8() function.
 */

#define GNUTLS_PKCS8_PLAIN GNUTLS_PKCS_PLAIN
#define GNUTLS_PKCS8_USE_PKCS12_3DES GNUTLS_PKCS_PKCS12_3DES
#define GNUTLS_PKCS8_USE_PKCS12_ARCFOUR GNUTLS_PKCS_PKCS12_ARCFOUR
#define GNUTLS_PKCS8_USE_PKCS12_RC2_40 GNUTLS_PKCS_PKCS12_RC2_40

/**
 * gnutls_pkcs_encrypt_flags_t:
 * @GNUTLS_PKCS_PLAIN: Unencrypted private key.
 * @GNUTLS_PKCS_NULL_PASSWORD: Some schemas distinguish between an empty and a NULL password.
 * @GNUTLS_PKCS_PKCS12_3DES: PKCS-12 3DES.
 * @GNUTLS_PKCS_PKCS12_ARCFOUR: PKCS-12 ARCFOUR.
 * @GNUTLS_PKCS_PKCS12_RC2_40: PKCS-12 RC2-40.
 * @GNUTLS_PKCS_PBES2_3DES: PBES2 3DES.
 * @GNUTLS_PKCS_PBES2_AES_128: PBES2 AES-128.
 * @GNUTLS_PKCS_PBES2_AES_192: PBES2 AES-192.
 * @GNUTLS_PKCS_PBES2_AES_256: PBES2 AES-256.
 * @GNUTLS_PKCS_PBES2_DES: PBES2 single DES.
 * @GNUTLS_PKCS_PBES1_DES_MD5: PBES1 with single DES; for compatibility with openssl only.
 * @GNUTLS_PKCS_PBES2_GOST_TC26Z: PBES2 GOST 28147-89 CFB with TC26-Z S-box.
 * @GNUTLS_PKCS_PBES2_GOST_CPA: PBES2 GOST 28147-89 CFB with CryptoPro-A S-box.
 * @GNUTLS_PKCS_PBES2_GOST_CPB: PBES2 GOST 28147-89 CFB with CryptoPro-B S-box.
 * @GNUTLS_PKCS_PBES2_GOST_CPC: PBES2 GOST 28147-89 CFB with CryptoPro-C S-box.
 * @GNUTLS_PKCS_PBES2_GOST_CPD: PBES2 GOST 28147-89 CFB with CryptoPro-D S-box.
 *
 * Enumeration of different PKCS encryption flags.
 */
typedef enum gnutls_pkcs_encrypt_flags_t {
	GNUTLS_PKCS_PLAIN = 1,
	GNUTLS_PKCS_PKCS12_3DES = 1<<1,
	GNUTLS_PKCS_PKCS12_ARCFOUR = 1<<2,
	GNUTLS_PKCS_PKCS12_RC2_40 = 1<<3,
	GNUTLS_PKCS_PBES2_3DES = 1<<4,
	GNUTLS_PKCS_PBES2_AES_128 = 1<<5,
	GNUTLS_PKCS_PBES2_AES_192 = 1<<6,
	GNUTLS_PKCS_PBES2_AES_256 = 1<<7,
	GNUTLS_PKCS_NULL_PASSWORD = 1<<8,
	GNUTLS_PKCS_PBES2_DES = 1<<9,
	GNUTLS_PKCS_PBES1_DES_MD5 = 1<<10,
	GNUTLS_PKCS_PBES2_GOST_TC26Z = 1<<11,
	GNUTLS_PKCS_PBES2_GOST_CPA = 1<<12,
	GNUTLS_PKCS_PBES2_GOST_CPB = 1<<13,
	GNUTLS_PKCS_PBES2_GOST_CPC = 1<<14,
	GNUTLS_PKCS_PBES2_GOST_CPD = 1<<15
} gnutls_pkcs_encrypt_flags_t;

#define GNUTLS_PKCS_CIPHER_MASK(x) ((x)&(~(GNUTLS_PKCS_NULL_PASSWORD)))

#define GNUTLS_PKCS_USE_PKCS12_3DES GNUTLS_PKCS_PKCS12_3DES
#define GNUTLS_PKCS_USE_PKCS12_ARCFOUR GNUTLS_PKCS_PKCS12_ARCFOUR
#define GNUTLS_PKCS_USE_PKCS12_RC2_40 GNUTLS_PKCS_PKCS12_RC2_40
#define GNUTLS_PKCS_USE_PBES2_3DES GNUTLS_PKCS_PBES2_3DES
#define GNUTLS_PKCS_USE_PBES2_AES_128 GNUTLS_PKCS_PBES2_AES_128
#define GNUTLS_PKCS_USE_PBES2_AES_192 GNUTLS_PKCS_PBES2_AES_192
#define GNUTLS_PKCS_USE_PBES2_AES_256 GNUTLS_PKCS_PBES2_AES_256
#define GNUTLS_PKCS_USE_PBES2_GOST_TC26Z GNUTLS_PKCS_PBES2_GOST_TC26Z
#define GNUTLS_PKCS_USE_PBES2_GOST_CPA GNUTLS_PKCS_PBES2_GOST_CPA
#define GNUTLS_PKCS_USE_PBES2_GOST_CPB GNUTLS_PKCS_PBES2_GOST_CPB
#define GNUTLS_PKCS_USE_PBES2_GOST_CPC GNUTLS_PKCS_PBES2_GOST_CPC
#define GNUTLS_PKCS_USE_PBES2_GOST_CPD GNUTLS_PKCS_PBES2_GOST_CPD

const char *gnutls_pkcs_schema_get_name(unsigned int schema);
const char *gnutls_pkcs_schema_get_oid(unsigned int schema);

int gnutls_x509_privkey_init(gnutls_x509_privkey_t * key);
void gnutls_x509_privkey_deinit(gnutls_x509_privkey_t key);
gnutls_sec_param_t
gnutls_x509_privkey_sec_param(gnutls_x509_privkey_t key);

void gnutls_x509_privkey_set_pin_function(gnutls_x509_privkey_t key,
				      gnutls_pin_callback_t fn,
				      void *userdata);

int gnutls_x509_privkey_cpy(gnutls_x509_privkey_t dst,
			    gnutls_x509_privkey_t src);
int gnutls_x509_privkey_import(gnutls_x509_privkey_t key,
			       const gnutls_datum_t * data,
			       gnutls_x509_crt_fmt_t format);
int gnutls_x509_privkey_import_pkcs8(gnutls_x509_privkey_t key,
				     const gnutls_datum_t * data,
				     gnutls_x509_crt_fmt_t format,
				     const char *password,
				     unsigned int flags);
int gnutls_x509_privkey_import_openssl(gnutls_x509_privkey_t key,
				       const gnutls_datum_t * data,
				       const char *password);

int
gnutls_pkcs8_info(const gnutls_datum_t * data, gnutls_x509_crt_fmt_t format,
		  unsigned int *schema, unsigned int *cipher,
		  void *salt, unsigned int *salt_size,
		  unsigned int *iter_count, char **oid);

int gnutls_x509_privkey_import2(gnutls_x509_privkey_t key,
				const gnutls_datum_t * data,
				gnutls_x509_crt_fmt_t format,
				const char *password, unsigned int flags);

int gnutls_x509_privkey_import_rsa_raw(gnutls_x509_privkey_t key,
				       const gnutls_datum_t * m,
				       const gnutls_datum_t * e,
				       const gnutls_datum_t * d,
				       const gnutls_datum_t * p,
				       const gnutls_datum_t * q,
				       const gnutls_datum_t * u);
int gnutls_x509_privkey_import_rsa_raw2(gnutls_x509_privkey_t key,
					const gnutls_datum_t * m,
					const gnutls_datum_t * e,
					const gnutls_datum_t * d,
					const gnutls_datum_t * p,
					const gnutls_datum_t * q,
					const gnutls_datum_t * u,
					const gnutls_datum_t * e1,
					const gnutls_datum_t * e2);
int gnutls_x509_privkey_import_ecc_raw(gnutls_x509_privkey_t key,
				       gnutls_ecc_curve_t curve,
				       const gnutls_datum_t * x,
				       const gnutls_datum_t * y,
				       const gnutls_datum_t * k);
int gnutls_x509_privkey_import_gost_raw(gnutls_x509_privkey_t key,
				       gnutls_ecc_curve_t curve,
				       gnutls_digest_algorithm_t digest,
				       gnutls_gost_paramset_t paramset,
				       const gnutls_datum_t * x,
				       const gnutls_datum_t * y,
				       const gnutls_datum_t * k);

int gnutls_x509_privkey_fix(gnutls_x509_privkey_t key);

int gnutls_x509_privkey_export_dsa_raw(gnutls_x509_privkey_t key,
				       gnutls_datum_t * p,
				       gnutls_datum_t * q,
				       gnutls_datum_t * g,
				       gnutls_datum_t * y,
				       gnutls_datum_t * x);
int gnutls_x509_privkey_import_dsa_raw(gnutls_x509_privkey_t key,
				       const gnutls_datum_t * p,
				       const gnutls_datum_t * q,
				       const gnutls_datum_t * g,
				       const gnutls_datum_t * y,
				       const gnutls_datum_t * x);

int gnutls_x509_privkey_get_pk_algorithm(gnutls_x509_privkey_t key);
int gnutls_x509_privkey_get_pk_algorithm2(gnutls_x509_privkey_t
					  key, unsigned int *bits);
int gnutls_x509_privkey_get_spki(gnutls_x509_privkey_t key,
				 gnutls_x509_spki_t spki,
				 unsigned int flags);
int
gnutls_x509_privkey_set_spki(gnutls_x509_privkey_t key,
			     const gnutls_x509_spki_t spki,
			     unsigned int flags);

int gnutls_x509_privkey_get_key_id(gnutls_x509_privkey_t key,
				   unsigned int flags,
				   unsigned char *output_data,
				   size_t * output_data_size);

int gnutls_x509_privkey_generate(gnutls_x509_privkey_t key,
				 gnutls_pk_algorithm_t algo,
				 unsigned int bits, unsigned int flags);

void gnutls_x509_privkey_set_flags(gnutls_x509_privkey_t key, unsigned int flags);

/**
 * gnutls_keygen_types_t:
 * @GNUTLS_KEYGEN_SEED: Specifies the seed to be used in key generation.
 * @GNUTLS_KEYGEN_DIGEST: The size field specifies the hash algorithm to be used in key generation.
 * @GNUTLS_KEYGEN_SPKI: data points to a %gnutls_x509_spki_t structure; it is not used after the key generation call.
 *
 * Enumeration of different key generation data options.
 */
typedef enum {
	GNUTLS_KEYGEN_SEED = 1,
	GNUTLS_KEYGEN_DIGEST = 2,
	GNUTLS_KEYGEN_SPKI = 3
} gnutls_keygen_types_t;

typedef struct {
	gnutls_keygen_types_t type;
	unsigned char *data;
	unsigned int size;
} gnutls_keygen_data_st;

int
gnutls_x509_privkey_generate2(gnutls_x509_privkey_t key,
			      gnutls_pk_algorithm_t algo, unsigned int bits,
			      unsigned int flags, const gnutls_keygen_data_st *data, unsigned data_size);

int gnutls_x509_privkey_verify_seed(gnutls_x509_privkey_t key, gnutls_digest_algorithm_t, const void *seed, size_t seed_size);
int gnutls_x509_privkey_get_seed(gnutls_x509_privkey_t key, gnutls_digest_algorithm_t*, void *seed, size_t *seed_size);

int gnutls_x509_privkey_verify_params(gnutls_x509_privkey_t key);

int gnutls_x509_privkey_export(gnutls_x509_privkey_t key,
			       gnutls_x509_crt_fmt_t format,
			       void *output_data,
			       size_t * output_data_size);
int gnutls_x509_privkey_export2(gnutls_x509_privkey_t key,
				gnutls_x509_crt_fmt_t format,
				gnutls_datum_t * out);
int gnutls_x509_privkey_export_pkcs8(gnutls_x509_privkey_t key,
				     gnutls_x509_crt_fmt_t format,
				     const char *password,
				     unsigned int flags,
				     void *output_data,
				     size_t * output_data_size);
int gnutls_x509_privkey_export2_pkcs8(gnutls_x509_privkey_t key,
				      gnutls_x509_crt_fmt_t format,
				      const char *password,
				      unsigned int flags,
				      gnutls_datum_t * out);
int gnutls_x509_privkey_export_rsa_raw2(gnutls_x509_privkey_t key,
					gnutls_datum_t * m,
					gnutls_datum_t * e,
					gnutls_datum_t * d,
					gnutls_datum_t * p,
					gnutls_datum_t * q,
					gnutls_datum_t * u,
					gnutls_datum_t * e1,
					gnutls_datum_t * e2);
int gnutls_x509_privkey_export_rsa_raw(gnutls_x509_privkey_t key,
				       gnutls_datum_t * m,
				       gnutls_datum_t * e,
				       gnutls_datum_t * d,
				       gnutls_datum_t * p,
				       gnutls_datum_t * q,
				       gnutls_datum_t * u);
int gnutls_x509_privkey_export_ecc_raw(gnutls_x509_privkey_t key,
				       gnutls_ecc_curve_t * curve,
				       gnutls_datum_t * x,
				       gnutls_datum_t * y,
				       gnutls_datum_t * k);
int gnutls_x509_privkey_export_gost_raw(gnutls_x509_privkey_t key,
				       gnutls_ecc_curve_t * curve,
				       gnutls_digest_algorithm_t * digest,
				       gnutls_gost_paramset_t * paramset,
				       gnutls_datum_t * x,
				       gnutls_datum_t * y,
				       gnutls_datum_t * k);

int gnutls_x509_privkey_sign_data(gnutls_x509_privkey_t key,
				  gnutls_digest_algorithm_t digest,
				  unsigned int flags,
				  const gnutls_datum_t * data,
				  void *signature,
				  size_t * signature_size);

/* Certificate request stuff.
 */
int gnutls_x509_crq_sign(gnutls_x509_crq_t crq,
			 gnutls_x509_privkey_t key);

int gnutls_x509_crq_sign2(gnutls_x509_crq_t crq,
			  gnutls_x509_privkey_t key,
			  gnutls_digest_algorithm_t dig,
			  unsigned int flags);

int gnutls_x509_crq_print(gnutls_x509_crq_t crq,
			  gnutls_certificate_print_formats_t
			  format, gnutls_datum_t * out);

int gnutls_x509_crq_verify(gnutls_x509_crq_t crq, unsigned int flags);

int gnutls_x509_crq_init(gnutls_x509_crq_t * crq);
void gnutls_x509_crq_deinit(gnutls_x509_crq_t crq);
int gnutls_x509_crq_import(gnutls_x509_crq_t crq,
			   const gnutls_datum_t * data,
			   gnutls_x509_crt_fmt_t format);

int gnutls_x509_crq_get_private_key_usage_period(gnutls_x509_crq_t
						 cert,
						 time_t *
						 activation,
						 time_t *
						 expiration, unsigned int
						 *critical);

int gnutls_x509_crq_get_dn(gnutls_x509_crq_t crq, char *buf,
			   size_t * sizeof_buf);
int gnutls_x509_crq_get_dn2(gnutls_x509_crq_t crq, gnutls_datum_t * dn);
int gnutls_x509_crq_get_dn3(gnutls_x509_crq_t crq, gnutls_datum_t * dn, unsigned flags);
int gnutls_x509_crq_get_dn_oid(gnutls_x509_crq_t crq, unsigned indx,
			       void *oid, size_t * sizeof_oid);
int gnutls_x509_crq_get_dn_by_oid(gnutls_x509_crq_t crq,
				  const char *oid, unsigned indx,
				  unsigned int raw_flag, void *buf,
				  size_t * sizeof_buf);
int gnutls_x509_crq_set_dn(gnutls_x509_crq_t crq, const char *dn,
			   const char **err);
int gnutls_x509_crq_set_dn_by_oid(gnutls_x509_crq_t crq,
				  const char *oid,
				  unsigned int raw_flag,
				  const void *data,
				  unsigned int sizeof_data);
int gnutls_x509_crq_set_version(gnutls_x509_crq_t crq,
				unsigned int version);
int gnutls_x509_crq_get_version(gnutls_x509_crq_t crq);
int gnutls_x509_crq_set_key(gnutls_x509_crq_t crq,
			    gnutls_x509_privkey_t key);

int
gnutls_x509_crq_set_extension_by_oid(gnutls_x509_crq_t crq,
				     const char *oid, const void *buf,
				     size_t sizeof_buf,
				     unsigned int critical);

int gnutls_x509_crq_set_challenge_password(gnutls_x509_crq_t crq,
					   const char *pass);
int gnutls_x509_crq_get_challenge_password(gnutls_x509_crq_t crq,
					   char *pass,
					   size_t * sizeof_pass);

int gnutls_x509_crq_set_attribute_by_oid(gnutls_x509_crq_t crq,
					 const char *oid,
					 void *buf, size_t sizeof_buf);
int gnutls_x509_crq_get_attribute_by_oid(gnutls_x509_crq_t crq,
					 const char *oid, unsigned indx,
					 void *buf, size_t * sizeof_buf);

int gnutls_x509_crq_export(gnutls_x509_crq_t crq,
			   gnutls_x509_crt_fmt_t format,
			   void *output_data, size_t * output_data_size);
int gnutls_x509_crq_export2(gnutls_x509_crq_t crq,
			    gnutls_x509_crt_fmt_t format,
			    gnutls_datum_t * out);

int gnutls_x509_crt_set_crq(gnutls_x509_crt_t crt, gnutls_x509_crq_t crq);
int gnutls_x509_crt_set_crq_extensions(gnutls_x509_crt_t crt,
				       gnutls_x509_crq_t crq);

int
gnutls_x509_crt_set_crq_extension_by_oid(gnutls_x509_crt_t crt,
				         gnutls_x509_crq_t crq, const char *oid,
				         unsigned flags);

int gnutls_x509_crq_set_private_key_usage_period(gnutls_x509_crq_t
						 crq,
						 time_t activation,
						 time_t expiration);
int gnutls_x509_crq_set_key_rsa_raw(gnutls_x509_crq_t crq,
				    const gnutls_datum_t * m,
				    const gnutls_datum_t * e);
int gnutls_x509_crq_set_subject_alt_name(gnutls_x509_crq_t crq,
					 gnutls_x509_subject_alt_name_t
					 nt, const void *data,
					 unsigned int data_size,
					 unsigned int flags);

int
gnutls_x509_crq_set_subject_alt_othername(gnutls_x509_crq_t crq,
				     const char *oid,
				     const void *data,
				     unsigned int data_size,
				     unsigned int flags);

int gnutls_x509_crq_set_key_usage(gnutls_x509_crq_t crq,
				  unsigned int usage);
int gnutls_x509_crq_set_basic_constraints(gnutls_x509_crq_t crq,
					  unsigned int ca,
					  int pathLenConstraint);
int gnutls_x509_crq_set_key_purpose_oid(gnutls_x509_crq_t crq,
					const void *oid,
					unsigned int critical);
int gnutls_x509_crq_get_key_purpose_oid(gnutls_x509_crq_t crq,
					unsigned indx, void *oid,
					size_t * sizeof_oid,
					unsigned int *critical);

int gnutls_x509_crq_get_extension_data(gnutls_x509_crq_t crq,
				       unsigned indx, void *data,
				       size_t * sizeof_data);
int
gnutls_x509_crq_get_extension_data2(gnutls_x509_crq_t crq,
			       unsigned indx,
			       gnutls_datum_t * data);
int gnutls_x509_crq_get_extension_info(gnutls_x509_crq_t crq,
				       unsigned indx, void *oid,
				       size_t * sizeof_oid,
				       unsigned int *critical);
int gnutls_x509_crq_get_attribute_data(gnutls_x509_crq_t crq,
				       unsigned indx, void *data,
				       size_t * sizeof_data);
int gnutls_x509_crq_get_attribute_info(gnutls_x509_crq_t crq,
				       unsigned indx, void *oid,
				       size_t * sizeof_oid);
int gnutls_x509_crq_get_pk_algorithm(gnutls_x509_crq_t crq,
				     unsigned int *bits);
int gnutls_x509_crq_get_spki(gnutls_x509_crq_t crq, gnutls_x509_spki_t spki,
			     unsigned int flags);

int gnutls_x509_crq_set_spki(gnutls_x509_crq_t crq, const gnutls_x509_spki_t spki,
			     unsigned int flags);

int gnutls_x509_crq_get_signature_oid(gnutls_x509_crq_t crq, char *oid, size_t *oid_size);
int gnutls_x509_crq_get_pk_oid(gnutls_x509_crq_t crq, char *oid, size_t *oid_size);

int gnutls_x509_crq_get_key_id(gnutls_x509_crq_t crq,
			       unsigned int flags,
			       unsigned char *output_data,
			       size_t * output_data_size);
int gnutls_x509_crq_get_key_rsa_raw(gnutls_x509_crq_t crq,
				    gnutls_datum_t * m,
				    gnutls_datum_t * e);

int gnutls_x509_crq_get_key_usage(gnutls_x509_crq_t crq,
				  unsigned int *key_usage,
				  unsigned int *critical);
int gnutls_x509_crq_get_basic_constraints(gnutls_x509_crq_t crq,
					  unsigned int *critical,
					  unsigned int *ca, int *pathlen);
int gnutls_x509_crq_get_subject_alt_name(gnutls_x509_crq_t crq,
					 unsigned int seq,
					 void *ret,
					 size_t * ret_size,
					 unsigned int *ret_type,
					 unsigned int *critical);
int gnutls_x509_crq_get_subject_alt_othername_oid(gnutls_x509_crq_t
						  crq,
						  unsigned int seq,
						  void *ret,
						  size_t * ret_size);

int gnutls_x509_crq_get_extension_by_oid(gnutls_x509_crq_t crq,
					 const char *oid, unsigned indx,
					 void *buf,
					 size_t * sizeof_buf,
					 unsigned int *critical);

int gnutls_x509_crq_get_tlsfeatures(gnutls_x509_crq_t crq,
				    gnutls_x509_tlsfeatures_t features,
				    unsigned flags,
				    unsigned int *critical);
int gnutls_x509_crq_set_tlsfeatures(gnutls_x509_crq_t crq,
				    gnutls_x509_tlsfeatures_t features);

int
gnutls_x509_crt_get_extension_by_oid2(gnutls_x509_crt_t cert,
				     const char *oid, unsigned indx,
				     gnutls_datum_t *output,
				     unsigned int *critical);

typedef struct gnutls_x509_trust_list_st *gnutls_x509_trust_list_t;
typedef struct gnutls_x509_trust_list_iter *gnutls_x509_trust_list_iter_t;

int
gnutls_x509_trust_list_init(gnutls_x509_trust_list_t * list,
			    unsigned int size);

void
gnutls_x509_trust_list_deinit(gnutls_x509_trust_list_t list,
			      unsigned int all);

int gnutls_x509_trust_list_get_issuer(gnutls_x509_trust_list_t
				      list, gnutls_x509_crt_t cert,
				      gnutls_x509_crt_t * issuer,
				      unsigned int flags);

int gnutls_x509_trust_list_get_issuer_by_dn(gnutls_x509_trust_list_t list,
				      const gnutls_datum_t *dn,
				      gnutls_x509_crt_t *issuer,
				      unsigned int flags);

int gnutls_x509_trust_list_get_issuer_by_subject_key_id(gnutls_x509_trust_list_t list,
				      const gnutls_datum_t *dn,
				      const gnutls_datum_t *spki,
				      gnutls_x509_crt_t *issuer,
				      unsigned int flags);
/**
 * gnutls_trust_list_flags_t:
 * @GNUTLS_TL_VERIFY_CRL: If any CRLs are provided they will be verified for validity
 *   prior to be added. The CA certificates that will be used for verification are the
 *   ones already added in the trusted list.
 * @GNUTLS_TL_USE_IN_TLS: Internal flag used by GnuTLS. If provided the trust list
 *   structure will cache a copy of CA DNs to be used in the certificate request
 *   TLS message.
 * @GNUTLS_TL_NO_DUPLICATES: If this flag is specified, a function adding certificates
 *   will check and eliminate any duplicates.
 * @GNUTLS_TL_NO_DUPLICATE_KEY: If this flag is specified, a certificate sharing the
 *   same key as a previously added on will not be added.
 * @GNUTLS_TL_GET_COPY: The semantics of this flag are documented to the functions which
 *   are applicable. In general, on returned value, the function will provide a copy
 *   if this flag is provided, rather than a pointer to internal data.
 * @GNUTLS_TL_FAIL_ON_INVALID_CRL: If an CRL is added which cannot be validated return
 *   an error instead of ignoring (must be used with %GNUTLS_TL_VERIFY_CRL).
 *
 * Enumeration of different certificate trust list flags.
 */
typedef enum gnutls_trust_list_flags_t {
	GNUTLS_TL_VERIFY_CRL = 1,
#define GNUTLS_TL_VERIFY_CRL 1
	GNUTLS_TL_USE_IN_TLS = (1<<1),
#define GNUTLS_TL_USE_IN_TLS (1<<1)
	GNUTLS_TL_NO_DUPLICATES = (1<<2),
#define GNUTLS_TL_NO_DUPLICATES (1<<2)
	GNUTLS_TL_NO_DUPLICATE_KEY = (1<<3),
#define GNUTLS_TL_NO_DUPLICATE_KEY (1<<3)
	GNUTLS_TL_GET_COPY = (1<<4),
#define GNUTLS_TL_GET_COPY (1<<4)
	GNUTLS_TL_FAIL_ON_INVALID_CRL = (1<<5)
#define GNUTLS_TL_FAIL_ON_INVALID_CRL (1<<5)
} gnutls_trust_list_flags_t;

int
gnutls_x509_trust_list_add_cas(gnutls_x509_trust_list_t list,
			       const gnutls_x509_crt_t * clist,
			       unsigned clist_size, unsigned int flags);
int gnutls_x509_trust_list_remove_cas(gnutls_x509_trust_list_t
				      list,
				      const gnutls_x509_crt_t *
				      clist, unsigned clist_size);

int gnutls_x509_trust_list_add_named_crt(gnutls_x509_trust_list_t
					 list,
					 gnutls_x509_crt_t cert,
					 const void *name,
					 size_t name_size,
					 unsigned int flags);

int
gnutls_x509_trust_list_add_crls(gnutls_x509_trust_list_t list,
				const gnutls_x509_crl_t *
				crl_list, unsigned crl_size,
				unsigned int flags,
				unsigned int verification_flags);


int
gnutls_x509_trust_list_iter_get_ca(gnutls_x509_trust_list_t list,
                                   gnutls_x509_trust_list_iter_t *iter,
                                   gnutls_x509_crt_t *crt);

void gnutls_x509_trust_list_iter_deinit(gnutls_x509_trust_list_iter_t iter);

typedef int gnutls_verify_output_function(gnutls_x509_crt_t cert, gnutls_x509_crt_t issuer,	/* The issuer if verification failed 
												 * because of him. might be null.
												 */
					  gnutls_x509_crl_t crl,	/* The CRL that caused verification failure 
									 * if any. Might be null. 
									 */
					  unsigned int
					  verification_output);

int gnutls_x509_trust_list_verify_named_crt
    (gnutls_x509_trust_list_t list, gnutls_x509_crt_t cert,
     const void *name, size_t name_size, unsigned int flags,
     unsigned int *verify, gnutls_verify_output_function func);

int
gnutls_x509_trust_list_verify_crt2(gnutls_x509_trust_list_t list,
				  gnutls_x509_crt_t * cert_list,
				  unsigned int cert_list_size,
				  gnutls_typed_vdata_st * data,
				  unsigned int elements,
				  unsigned int flags,
				  unsigned int *voutput,
				  gnutls_verify_output_function func);

int
gnutls_x509_trust_list_verify_crt(gnutls_x509_trust_list_t list,
				  gnutls_x509_crt_t * cert_list,
				  unsigned int cert_list_size,
				  unsigned int flags,
				  unsigned int *verify,
				  gnutls_verify_output_function func);

	/* trust list convenience functions */
int
gnutls_x509_trust_list_add_trust_mem(gnutls_x509_trust_list_t
				     list,
				     const gnutls_datum_t * cas,
				     const gnutls_datum_t * crls,
				     gnutls_x509_crt_fmt_t type,
				     unsigned int tl_flags,
				     unsigned int tl_vflags);

int
gnutls_x509_trust_list_add_trust_file(gnutls_x509_trust_list_t
				      list, const char *ca_file,
				      const char *crl_file,
				      gnutls_x509_crt_fmt_t type,
				      unsigned int tl_flags,
				      unsigned int tl_vflags);

int
gnutls_x509_trust_list_add_trust_dir(gnutls_x509_trust_list_t list,
				      const char *ca_dir,
				      const char *crl_dir,
				      gnutls_x509_crt_fmt_t type,
				      unsigned int tl_flags,
				      unsigned int tl_vflags);

int
gnutls_x509_trust_list_remove_trust_file(gnutls_x509_trust_list_t
					 list,
					 const char *ca_file,
					 gnutls_x509_crt_fmt_t type);

int
gnutls_x509_trust_list_remove_trust_mem(gnutls_x509_trust_list_t
					list,
					const gnutls_datum_t *
					cas, gnutls_x509_crt_fmt_t type);

int
gnutls_x509_trust_list_add_system_trust(gnutls_x509_trust_list_t
					list,
					unsigned int tl_flags,
					unsigned int tl_vflags);

void gnutls_certificate_set_trust_list
    (gnutls_certificate_credentials_t res,
     gnutls_x509_trust_list_t tlist, unsigned flags);
void gnutls_certificate_get_trust_list
    (gnutls_certificate_credentials_t res,
     gnutls_x509_trust_list_t *tlist);

typedef struct gnutls_x509_ext_st {
	char *oid;
	unsigned int critical;
	gnutls_datum_t data;
} gnutls_x509_ext_st;

void gnutls_x509_ext_deinit(gnutls_x509_ext_st *ext);

int
gnutls_x509_ext_print(gnutls_x509_ext_st *exts, unsigned int exts_size,
		      gnutls_certificate_print_formats_t format,
		      gnutls_datum_t * out);

#include <gnutls/pkcs7.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif				/* GNUTLS_X509_H */
PK�vFZa�*K?Q?Qpkcs11.hnu�[���/*
 * Copyright (C) 2010-2012 Free Software Foundation, Inc.
 * Copyright (C) 2016-2018 Red Hat, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

#ifndef __GNUTLS_PKCS11_H
#define __GNUTLS_PKCS11_H

#include <stdarg.h>
#include <gnutls/gnutls.h>
#include <gnutls/x509.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

#define GNUTLS_PKCS11_MAX_PIN_LEN 32

/**
 * gnutls_pkcs11_token_callback_t:
 * @userdata: user-controlled data from gnutls_pkcs11_set_token_function().
 * @label: token label.
 * @retry: retry counter, initially 0.
 *
 * Token callback function. The callback will be used to ask the user
 * to re-insert the token with given (null terminated) label.  The
 * callback should return zero if token has been inserted by user and
 * a negative error code otherwise.  It might be called multiple times
 * if the token is not detected and the retry counter will be
 * increased.
 *
 * Returns: %GNUTLS_E_SUCCESS (0) on success or a negative error code
 * on error.
 *
 * Since: 2.12.0
 **/
typedef int (*gnutls_pkcs11_token_callback_t) (void *const
					       userdata,
					       const char *const
					       label, unsigned retry);


struct gnutls_pkcs11_obj_st;
typedef struct gnutls_pkcs11_obj_st *gnutls_pkcs11_obj_t;


#define GNUTLS_PKCS11_FLAG_MANUAL 0	/* Manual loading of libraries */
#define GNUTLS_PKCS11_FLAG_AUTO 1	/* Automatically load libraries by reading /etc/gnutls/pkcs11.conf */
#define GNUTLS_PKCS11_FLAG_AUTO_TRUSTED (1<<1)	/* Automatically load trusted libraries by reading /etc/gnutls/pkcs11.conf */

/* pkcs11.conf format:
 * load = /lib/xxx-pkcs11.so
 * load = /lib/yyy-pkcs11.so
 */

int gnutls_pkcs11_init(unsigned int flags,
		       const char *deprecated_config_file);
int gnutls_pkcs11_reinit(void);
void gnutls_pkcs11_deinit(void);
void gnutls_pkcs11_set_token_function
    (gnutls_pkcs11_token_callback_t fn, void *userdata);

void gnutls_pkcs11_set_pin_function(gnutls_pin_callback_t fn,
				    void *userdata);

gnutls_pin_callback_t gnutls_pkcs11_get_pin_function(void
						     **userdata);

int gnutls_pkcs11_add_provider(const char *name, const char *params);
int gnutls_pkcs11_obj_init(gnutls_pkcs11_obj_t * obj);
void gnutls_pkcs11_obj_set_pin_function(gnutls_pkcs11_obj_t obj,
					gnutls_pin_callback_t fn,
					void *userdata);

/**
 * gnutls_pkcs11_obj_flags:
 * @GNUTLS_PKCS11_OBJ_FLAG_LOGIN: Force login in the token for the operation (seek+store). 
 * @GNUTLS_PKCS11_OBJ_FLAG_MARK_TRUSTED: object marked as trusted (seek+store).
 * @GNUTLS_PKCS11_OBJ_FLAG_MARK_SENSITIVE: object is explicitly marked as sensitive -unexportable (store).
 * @GNUTLS_PKCS11_OBJ_FLAG_LOGIN_SO: force login as a security officer in the token for the operation (seek+store).
 * @GNUTLS_PKCS11_OBJ_FLAG_MARK_PRIVATE: marked as private -requires PIN to access (store).
 * @GNUTLS_PKCS11_OBJ_FLAG_MARK_NOT_PRIVATE: marked as not private (store).
 * @GNUTLS_PKCS11_OBJ_FLAG_RETRIEVE_ANY: When retrieving an object, do not set any requirements (store).
 * @GNUTLS_PKCS11_OBJ_FLAG_RETRIEVE_TRUSTED: When retrieving an object, only retrieve the marked as trusted (alias to %GNUTLS_PKCS11_OBJ_FLAG_MARK_TRUSTED).
 *   In gnutls_pkcs11_crt_is_known() it implies %GNUTLS_PKCS11_OBJ_FLAG_RETRIEVE_COMPARE if %GNUTLS_PKCS11_OBJ_FLAG_COMPARE_KEY is not given.
 * @GNUTLS_PKCS11_OBJ_FLAG_MARK_DISTRUSTED: When writing an object, mark it as distrusted (store).
 * @GNUTLS_PKCS11_OBJ_FLAG_RETRIEVE_DISTRUSTED: When retrieving an object, only retrieve the marked as distrusted (seek).
 * @GNUTLS_PKCS11_OBJ_FLAG_COMPARE: When checking an object's presence, fully compare it before returning any result (seek).
 * @GNUTLS_PKCS11_OBJ_FLAG_COMPARE_KEY: When checking an object's presence, compare the key before returning any result (seek).
 * @GNUTLS_PKCS11_OBJ_FLAG_PRESENT_IN_TRUSTED_MODULE: The object must be present in a marked as trusted module (seek).
 * @GNUTLS_PKCS11_OBJ_FLAG_MARK_CA: Mark the object as a CA (seek+store).
 * @GNUTLS_PKCS11_OBJ_FLAG_MARK_KEY_WRAP: Mark the generated key pair as wrapping and unwrapping keys (store).
 * @GNUTLS_PKCS11_OBJ_FLAG_OVERWRITE_TRUSTMOD_EXT: When an issuer is requested, override its extensions with the ones present in the trust module (seek).
 * @GNUTLS_PKCS11_OBJ_FLAG_MARK_ALWAYS_AUTH: Mark the key pair as requiring authentication (pin entry) before every operation (seek+store).
 * @GNUTLS_PKCS11_OBJ_FLAG_MARK_EXTRACTABLE: Mark the key pair as being extractable (store).
 * @GNUTLS_PKCS11_OBJ_FLAG_NEVER_EXTRACTABLE: If set, the object was never marked as extractable (store).
 * @GNUTLS_PKCS11_OBJ_FLAG_CRT: When searching, restrict to certificates only (seek).
 * @GNUTLS_PKCS11_OBJ_FLAG_PUBKEY: When searching, restrict to public key objects only (seek).
 * @GNUTLS_PKCS11_OBJ_FLAG_PRIVKEY: When searching, restrict to private key objects only (seek).
 * @GNUTLS_PKCS11_OBJ_FLAG_NO_STORE_PUBKEY: When generating a keypair don't store the public key (store).
 * @GNUTLS_PKCS11_OBJ_FLAG_MARK_NOT_SENSITIVE: object marked as not sensitive -exportable (store).
 *
 * Enumeration of different PKCS #11 object flags. Some flags are used
 * to mark objects when storing, while others are also used while seeking
 * or retrieving objects.
 */
typedef enum gnutls_pkcs11_obj_flags {
	GNUTLS_PKCS11_OBJ_FLAG_LOGIN = (1<<0),
	GNUTLS_PKCS11_OBJ_FLAG_MARK_TRUSTED = (1<<1),
	GNUTLS_PKCS11_OBJ_FLAG_MARK_SENSITIVE = (1<<2),
	GNUTLS_PKCS11_OBJ_FLAG_LOGIN_SO = (1<<3),
	GNUTLS_PKCS11_OBJ_FLAG_MARK_PRIVATE = (1<<4),
	GNUTLS_PKCS11_OBJ_FLAG_MARK_NOT_PRIVATE = (1<<5),
	GNUTLS_PKCS11_OBJ_FLAG_RETRIEVE_ANY = (1<<6),
	GNUTLS_PKCS11_OBJ_FLAG_RETRIEVE_TRUSTED = GNUTLS_PKCS11_OBJ_FLAG_MARK_TRUSTED,
	GNUTLS_PKCS11_OBJ_FLAG_MARK_DISTRUSTED = (1<<8),
	GNUTLS_PKCS11_OBJ_FLAG_RETRIEVE_DISTRUSTED = GNUTLS_PKCS11_OBJ_FLAG_MARK_DISTRUSTED,
	GNUTLS_PKCS11_OBJ_FLAG_COMPARE = (1<<9),
	GNUTLS_PKCS11_OBJ_FLAG_PRESENT_IN_TRUSTED_MODULE = (1<<10),
	GNUTLS_PKCS11_OBJ_FLAG_MARK_CA = (1<<11),
	GNUTLS_PKCS11_OBJ_FLAG_MARK_KEY_WRAP = (1<<12),
	GNUTLS_PKCS11_OBJ_FLAG_COMPARE_KEY = (1<<13),
	GNUTLS_PKCS11_OBJ_FLAG_OVERWRITE_TRUSTMOD_EXT = (1<<14),
	GNUTLS_PKCS11_OBJ_FLAG_MARK_ALWAYS_AUTH = (1<<15),
	GNUTLS_PKCS11_OBJ_FLAG_MARK_EXTRACTABLE = (1<<16),
	GNUTLS_PKCS11_OBJ_FLAG_NEVER_EXTRACTABLE = (1<<17),
	GNUTLS_PKCS11_OBJ_FLAG_CRT = (1<<18),
	GNUTLS_PKCS11_OBJ_FLAG_WITH_PRIVKEY = (1<<19),
	GNUTLS_PKCS11_OBJ_FLAG_PUBKEY = (1<<20),
	GNUTLS_PKCS11_OBJ_FLAG_NO_STORE_PUBKEY = GNUTLS_PKCS11_OBJ_FLAG_PUBKEY,
	GNUTLS_PKCS11_OBJ_FLAG_PRIVKEY = (1<<21),
	GNUTLS_PKCS11_OBJ_FLAG_MARK_NOT_SENSITIVE = (1<<22),
	/* flags 1<<29 and later are reserved - see pkcs11_int.h */
} gnutls_pkcs11_obj_flags;

#define gnutls_pkcs11_obj_attr_t gnutls_pkcs11_obj_flags

/**
 * gnutls_pkcs11_url_type_t:
 * @GNUTLS_PKCS11_URL_GENERIC: A generic-purpose URL.
 * @GNUTLS_PKCS11_URL_LIB: A URL that specifies the library used as well.
 * @GNUTLS_PKCS11_URL_LIB_VERSION: A URL that specifies the library and its version.
 *
 * Enumeration of different URL extraction flags.
 */
typedef enum {
	GNUTLS_PKCS11_URL_GENERIC,	/* URL specifies the object on token level */
	GNUTLS_PKCS11_URL_LIB,	/* URL specifies the object on module level */
	GNUTLS_PKCS11_URL_LIB_VERSION	/* URL specifies the object on module and version level */
} gnutls_pkcs11_url_type_t;

int gnutls_pkcs11_obj_import_url(gnutls_pkcs11_obj_t obj,
				 const char *url, unsigned int flags
				 /* GNUTLS_PKCS11_OBJ_FLAG_* */ );
int gnutls_pkcs11_obj_export_url(gnutls_pkcs11_obj_t obj,
				 gnutls_pkcs11_url_type_t detailed,
				 char **url);
void gnutls_pkcs11_obj_deinit(gnutls_pkcs11_obj_t obj);

int gnutls_pkcs11_obj_export(gnutls_pkcs11_obj_t obj,
			     void *output_data, size_t * output_data_size);
int gnutls_pkcs11_obj_export2(gnutls_pkcs11_obj_t obj,
			      gnutls_datum_t * out);

int gnutls_pkcs11_obj_export3(gnutls_pkcs11_obj_t obj, gnutls_x509_crt_fmt_t fmt,
			      gnutls_datum_t * out);

int gnutls_pkcs11_get_raw_issuer(const char *url, gnutls_x509_crt_t cert,
			     gnutls_datum_t * issuer,
			     gnutls_x509_crt_fmt_t fmt,
			     unsigned int flags);

int gnutls_pkcs11_get_raw_issuer_by_dn (const char *url, const gnutls_datum_t *dn,
					gnutls_datum_t *issuer,
					gnutls_x509_crt_fmt_t fmt,
					unsigned int flags);

int gnutls_pkcs11_get_raw_issuer_by_subject_key_id (const char *url, 
					const gnutls_datum_t *dn,
					const gnutls_datum_t *spki,
					gnutls_datum_t *issuer,
					gnutls_x509_crt_fmt_t fmt,
					unsigned int flags);

unsigned gnutls_pkcs11_crt_is_known(const char *url, gnutls_x509_crt_t cert,
			     unsigned int flags);

#if 0
/* for documentation */
int gnutls_pkcs11_copy_x509_crt(const char *token_url,
				gnutls_x509_crt_t crt,
				const char *label, unsigned int flags
				/* GNUTLS_PKCS11_OBJ_FLAG_* */ );

int gnutls_pkcs11_copy_x509_privkey(const char *token_url,
				    gnutls_x509_privkey_t key,
				    const char *label,
				    unsigned int key_usage,
				    unsigned int flags);
int
gnutls_pkcs11_privkey_generate2(const char *url, gnutls_pk_algorithm_t pk,
				unsigned int bits, const char *label,
				gnutls_x509_crt_fmt_t fmt,
				gnutls_datum_t * pubkey,
				unsigned int flags);
int
gnutls_pkcs11_privkey_generate(const char *url, gnutls_pk_algorithm_t pk,
			       unsigned int bits, const char *label,
			       unsigned int flags);
#endif

int
gnutls_pkcs11_copy_pubkey(const char *token_url,
			  gnutls_pubkey_t crt, const char *label,
			  const gnutls_datum_t *cid,
			  unsigned int key_usage, unsigned int flags);

#define gnutls_pkcs11_copy_x509_crt(url, crt, label, flags) \
	gnutls_pkcs11_copy_x509_crt2(url, crt, label, NULL, flags)

int gnutls_pkcs11_copy_x509_crt2(const char *token_url,
				gnutls_x509_crt_t crt,
				const char *label,
				const gnutls_datum_t *id,
				unsigned int flags /* GNUTLS_PKCS11_OBJ_FLAG_* */);

#define gnutls_pkcs11_copy_x509_privkey(url, key, label, usage, flags) \
	gnutls_pkcs11_copy_x509_privkey2(url, key, label, NULL, usage, flags)
int gnutls_pkcs11_copy_x509_privkey2(const char *token_url,
				    gnutls_x509_privkey_t key,
				    const char *label,
				    const gnutls_datum_t *cid,
				    unsigned int key_usage
				    /*GNUTLS_KEY_* */ ,
				    unsigned int flags
				    /* GNUTLS_PKCS11_OBJ_FLAG_* */
);

int gnutls_pkcs11_delete_url(const char *object_url, unsigned int flags
			     /* GNUTLS_PKCS11_OBJ_FLAG_* */ );

int gnutls_pkcs11_copy_secret_key(const char *token_url,
				  gnutls_datum_t * key,
				  const char *label, unsigned int key_usage
				  /* GNUTLS_KEY_* */ ,
				  unsigned int flags
				  /* GNUTLS_PKCS11_OBJ_FLAG_* */ );

/**
 * gnutls_pkcs11_obj_info_t:
 * @GNUTLS_PKCS11_OBJ_ID_HEX: The object ID in hex. Null-terminated text.
 * @GNUTLS_PKCS11_OBJ_LABEL: The object label. Null-terminated text.
 * @GNUTLS_PKCS11_OBJ_TOKEN_LABEL: The token's label. Null-terminated text.
 * @GNUTLS_PKCS11_OBJ_TOKEN_SERIAL: The token's serial number. Null-terminated text.
 * @GNUTLS_PKCS11_OBJ_TOKEN_MANUFACTURER: The token's manufacturer. Null-terminated text.
 * @GNUTLS_PKCS11_OBJ_TOKEN_MODEL: The token's model. Null-terminated text.
 * @GNUTLS_PKCS11_OBJ_ID: The object ID. Raw bytes.
 * @GNUTLS_PKCS11_OBJ_LIBRARY_VERSION: The library's version. Null-terminated text.
 * @GNUTLS_PKCS11_OBJ_LIBRARY_DESCRIPTION: The library's description. Null-terminated text.
 * @GNUTLS_PKCS11_OBJ_LIBRARY_MANUFACTURER: The library's manufacturer name. Null-terminated text.
 *
 * Enumeration of several object information types.
 */
typedef enum {
	GNUTLS_PKCS11_OBJ_ID_HEX = 1,
	GNUTLS_PKCS11_OBJ_LABEL,
	GNUTLS_PKCS11_OBJ_TOKEN_LABEL,
	GNUTLS_PKCS11_OBJ_TOKEN_SERIAL,
	GNUTLS_PKCS11_OBJ_TOKEN_MANUFACTURER,
	GNUTLS_PKCS11_OBJ_TOKEN_MODEL,
	GNUTLS_PKCS11_OBJ_ID,
	/* the pkcs11 provider library info  */
	GNUTLS_PKCS11_OBJ_LIBRARY_VERSION,
	GNUTLS_PKCS11_OBJ_LIBRARY_DESCRIPTION,
	GNUTLS_PKCS11_OBJ_LIBRARY_MANUFACTURER
} gnutls_pkcs11_obj_info_t;

int
gnutls_pkcs11_obj_get_ptr(gnutls_pkcs11_obj_t obj, void **ptr,
			  void **session, void **ohandle,
			  unsigned long *slot_id,
			  unsigned int flags);

int gnutls_pkcs11_obj_get_info(gnutls_pkcs11_obj_t obj,
			       gnutls_pkcs11_obj_info_t itype,
			       void *output, size_t * output_size);
int gnutls_pkcs11_obj_set_info(gnutls_pkcs11_obj_t obj,
			       gnutls_pkcs11_obj_info_t itype,
			       const void *data, size_t data_size,
			       unsigned flags);

#define GNUTLS_PKCS11_OBJ_ATTR_CRT_ALL GNUTLS_PKCS11_OBJ_FLAG_CRT
#define GNUTLS_PKCS11_OBJ_ATTR_MATCH 0 /* always match the given URL */
#define GNUTLS_PKCS11_OBJ_ATTR_ALL 0 /* match everything! */
#define GNUTLS_PKCS11_OBJ_ATTR_CRT_TRUSTED (GNUTLS_PKCS11_OBJ_FLAG_CRT|GNUTLS_PKCS11_OBJ_FLAG_MARK_TRUSTED)
#define GNUTLS_PKCS11_OBJ_ATTR_CRT_WITH_PRIVKEY (GNUTLS_PKCS11_OBJ_FLAG_CRT|GNUTLS_PKCS11_OBJ_FLAG_WITH_PRIVKEY)
#define GNUTLS_PKCS11_OBJ_ATTR_CRT_TRUSTED_CA (GNUTLS_PKCS11_OBJ_FLAG_CRT|GNUTLS_PKCS11_OBJ_FLAG_MARK_CA|GNUTLS_PKCS11_OBJ_FLAG_MARK_TRUSTED)
#define GNUTLS_PKCS11_OBJ_ATTR_PUBKEY GNUTLS_PKCS11_OBJ_FLAG_PUBKEY
#define GNUTLS_PKCS11_OBJ_ATTR_PRIVKEY GNUTLS_PKCS11_OBJ_FLAG_PRIVKEY

/**
 * gnutls_pkcs11_token_info_t:
 * @GNUTLS_PKCS11_TOKEN_LABEL: The token's label (string)
 * @GNUTLS_PKCS11_TOKEN_SERIAL: The token's serial number (string)
 * @GNUTLS_PKCS11_TOKEN_MANUFACTURER: The token's manufacturer (string)
 * @GNUTLS_PKCS11_TOKEN_MODEL: The token's model (string)
 * @GNUTLS_PKCS11_TOKEN_MODNAME: The token's module name (string - since 3.4.3). This value is
 *   unavailable for providers which were manually loaded.
 *
 * Enumeration of types for retrieving token information.
 */
typedef enum {
	GNUTLS_PKCS11_TOKEN_LABEL,
	GNUTLS_PKCS11_TOKEN_SERIAL,
	GNUTLS_PKCS11_TOKEN_MANUFACTURER,
	GNUTLS_PKCS11_TOKEN_MODEL,
	GNUTLS_PKCS11_TOKEN_MODNAME
} gnutls_pkcs11_token_info_t;

/**
 * gnutls_pkcs11_obj_type_t:
 * @GNUTLS_PKCS11_OBJ_UNKNOWN: Unknown PKCS11 object.
 * @GNUTLS_PKCS11_OBJ_X509_CRT: X.509 certificate.
 * @GNUTLS_PKCS11_OBJ_PUBKEY: Public key.
 * @GNUTLS_PKCS11_OBJ_PRIVKEY: Private key.
 * @GNUTLS_PKCS11_OBJ_SECRET_KEY: Secret key.
 * @GNUTLS_PKCS11_OBJ_DATA: Data object.
 * @GNUTLS_PKCS11_OBJ_X509_CRT_EXTENSION: X.509 certificate extension (supported by p11-kit trust module only).
 *
 * Enumeration of object types.
 */
typedef enum {
	GNUTLS_PKCS11_OBJ_UNKNOWN,
	GNUTLS_PKCS11_OBJ_X509_CRT,
	GNUTLS_PKCS11_OBJ_PUBKEY,
	GNUTLS_PKCS11_OBJ_PRIVKEY,
	GNUTLS_PKCS11_OBJ_SECRET_KEY,
	GNUTLS_PKCS11_OBJ_DATA,
	GNUTLS_PKCS11_OBJ_X509_CRT_EXTENSION
} gnutls_pkcs11_obj_type_t;

int
gnutls_pkcs11_token_init(const char *token_url,
			 const char *so_pin, const char *label);

int
gnutls_pkcs11_token_get_ptr(const char *url, void **ptr, unsigned long *slot_id,
			    unsigned int flags);

int
gnutls_pkcs11_token_get_mechanism(const char *url,
				  unsigned int idx,
				  unsigned long *mechanism);

unsigned
gnutls_pkcs11_token_check_mechanism(const char *url,
				    unsigned long mechanism,
				    void *ptr, unsigned psize, unsigned flags);

int gnutls_pkcs11_token_set_pin(const char *token_url, const char *oldpin, const char *newpin, unsigned int flags	/*gnutls_pin_flag_t */);

int gnutls_pkcs11_token_get_url(unsigned int seq,
				gnutls_pkcs11_url_type_t detailed,
				char **url);
int gnutls_pkcs11_token_get_info(const char *url,
				 gnutls_pkcs11_token_info_t ttype,
				 void *output, size_t * output_size);

#define GNUTLS_PKCS11_TOKEN_HW 1
#define GNUTLS_PKCS11_TOKEN_TRUSTED (1<<1) /* p11-kit trusted */
#define GNUTLS_PKCS11_TOKEN_RNG (1<<2) /* CKF_RNG */
#define GNUTLS_PKCS11_TOKEN_LOGIN_REQUIRED (1<<3) /* CKF_LOGIN_REQUIRED */
#define GNUTLS_PKCS11_TOKEN_PROTECTED_AUTHENTICATION_PATH (1<<4) /* CKF_PROTECTED_AUTHENTICATION_PATH */
#define GNUTLS_PKCS11_TOKEN_INITIALIZED (1<<5) /* CKF_TOKEN_INITIALIZED */
#define GNUTLS_PKCS11_TOKEN_USER_PIN_COUNT_LOW (1<<6) /* CKF_USER_PIN_COUNT_LOW */
#define GNUTLS_PKCS11_TOKEN_USER_PIN_FINAL_TRY (1<<7) /* CKF_USER_PIN_FINAL_TRY */
#define GNUTLS_PKCS11_TOKEN_USER_PIN_LOCKED (1<<8) /* CKF_USER_PIN_LOCKED */
#define GNUTLS_PKCS11_TOKEN_SO_PIN_COUNT_LOW (1<<9) /* CKF_SO_PIN_COUNT_LOW */
#define GNUTLS_PKCS11_TOKEN_SO_PIN_FINAL_TRY (1<<10) /* CKF_SO_PIN_FINAL_TRY */
#define GNUTLS_PKCS11_TOKEN_SO_PIN_LOCKED (1<<11) /* CKF_SO_PIN_LOCKED */
#define GNUTLS_PKCS11_TOKEN_USER_PIN_INITIALIZED (1<<12) /* CKF_USER_PIN_INITIALIZED */
#define GNUTLS_PKCS11_TOKEN_ERROR_STATE (1<<13) /* CKF_ERROR_STATE */

int gnutls_pkcs11_token_get_flags(const char *url, unsigned int *flags);

#define gnutls_pkcs11_obj_list_import_url(p_list, n_list, url, attrs, flags) gnutls_pkcs11_obj_list_import_url3(p_list, n_list, url, attrs|flags)
#define gnutls_pkcs11_obj_list_import_url2(p_list, n_list, url, attrs, flags) gnutls_pkcs11_obj_list_import_url4(p_list, n_list, url, attrs|flags)

int gnutls_pkcs11_obj_list_import_url3(gnutls_pkcs11_obj_t * p_list,
				      unsigned int *const n_list,
				      const char *url,
				      unsigned int flags
				      /* GNUTLS_PKCS11_OBJ_FLAG_* */
    );

int
gnutls_pkcs11_obj_list_import_url4(gnutls_pkcs11_obj_t ** p_list,
				   unsigned int *n_list,
				   const char *url,
				   unsigned int flags
				   /* GNUTLS_PKCS11_OBJ_FLAG_* */
    );

int gnutls_x509_crt_import_pkcs11(gnutls_x509_crt_t crt,
				  gnutls_pkcs11_obj_t pkcs11_crt);

gnutls_pkcs11_obj_type_t
gnutls_pkcs11_obj_get_type(gnutls_pkcs11_obj_t obj);
const char *gnutls_pkcs11_type_get_name(gnutls_pkcs11_obj_type_t type);

int
gnutls_pkcs11_obj_get_exts(gnutls_pkcs11_obj_t obj,
			   struct gnutls_x509_ext_st **exts, unsigned int *exts_size,
			   unsigned int flags);

int
gnutls_pkcs11_obj_get_flags(gnutls_pkcs11_obj_t obj, unsigned int *oflags);
char *gnutls_pkcs11_obj_flags_get_str(unsigned int flags);

int gnutls_x509_crt_list_import_pkcs11(gnutls_x509_crt_t * certs,
				       unsigned int cert_max,
				       gnutls_pkcs11_obj_t *
				       const objs, unsigned int flags
				       /* must be zero */ );

/* private key functions...*/
int gnutls_pkcs11_privkey_init(gnutls_pkcs11_privkey_t * key);

int
gnutls_pkcs11_privkey_cpy(gnutls_pkcs11_privkey_t dst,
			  gnutls_pkcs11_privkey_t src);

void gnutls_pkcs11_privkey_set_pin_function(gnutls_pkcs11_privkey_t
					    key,
					    gnutls_pin_callback_t
					    fn, void *userdata);
void gnutls_pkcs11_privkey_deinit(gnutls_pkcs11_privkey_t key);
int gnutls_pkcs11_privkey_get_pk_algorithm(gnutls_pkcs11_privkey_t
					   key, unsigned int *bits);
int gnutls_pkcs11_privkey_get_info(gnutls_pkcs11_privkey_t pkey,
				   gnutls_pkcs11_obj_info_t itype,
				   void *output, size_t * output_size);

int gnutls_pkcs11_privkey_import_url(gnutls_pkcs11_privkey_t pkey,
				     const char *url, unsigned int flags);

int gnutls_pkcs11_privkey_export_url(gnutls_pkcs11_privkey_t key,
				     gnutls_pkcs11_url_type_t
				     detailed, char **url);
unsigned gnutls_pkcs11_privkey_status(gnutls_pkcs11_privkey_t key);

#define gnutls_pkcs11_privkey_generate(url, pk, bits, label, flags) \
	gnutls_pkcs11_privkey_generate3(url, pk, bits, label, NULL, 0, NULL, 0, flags)

#define gnutls_pkcs11_privkey_generate2(url, pk, bits, label, fmt, pubkey, flags) \
	gnutls_pkcs11_privkey_generate3(url, pk, bits, label, NULL, fmt, pubkey, 0, flags)

int
gnutls_pkcs11_privkey_generate3(const char *url,
				gnutls_pk_algorithm_t pk,
				unsigned int bits,
				const char *label,
				const gnutls_datum_t *cid,
				gnutls_x509_crt_fmt_t fmt,
				gnutls_datum_t * pubkey,
				unsigned int key_usage,
				unsigned int flags);

int
gnutls_pkcs11_privkey_export_pubkey(gnutls_pkcs11_privkey_t pkey,
			      gnutls_x509_crt_fmt_t fmt,
			      gnutls_datum_t * pubkey,
			      unsigned int flags);

int
gnutls_pkcs11_token_get_random(const char *token_url,
			       void *data, size_t len);

int
gnutls_pkcs11_copy_attached_extension(const char *token_url,
				      gnutls_x509_crt_t crt,
				      gnutls_datum_t *data,
				      const char *label,
				      unsigned int flags);

#define gnutls_x509_crt_import_pkcs11_url gnutls_x509_crt_import_url

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif
PK�vFZ3{��
�
dtls.hnu�[���/*
 * Copyright (C) 2011-2012 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

/* This file contains the types and prototypes for the X.509
 * certificate and CRL handling functions.
 */

#ifndef GNUTLS_DTLS_H
#define GNUTLS_DTLS_H

#include <gnutls/gnutls.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

#define GNUTLS_COOKIE_KEY_SIZE 16

void gnutls_dtls_set_timeouts(gnutls_session_t session,
			      unsigned int retrans_timeout,
			      unsigned int total_timeout);

unsigned int gnutls_dtls_get_mtu(gnutls_session_t session);
unsigned int gnutls_dtls_get_data_mtu(gnutls_session_t session);

void gnutls_dtls_set_mtu(gnutls_session_t session, unsigned int mtu);
int gnutls_dtls_set_data_mtu(gnutls_session_t session, unsigned int mtu);

unsigned int gnutls_dtls_get_timeout(gnutls_session_t session);

/**
 * gnutls_dtls_prestate_st:
 * @record_seq: record sequence number
 * @hsk_read_seq: handshake read sequence number
 * @hsk_write_seq: handshake write sequence number
 *
 * DTLS cookie prestate struct.  This is usually never modified by
 * the application, it is used to carry the cookie data between
 * gnutls_dtls_cookie_send(), gnutls_dtls_cookie_verify() and
 * gnutls_dtls_prestate_set().
 */
typedef struct {
	unsigned int record_seq;
	unsigned int hsk_read_seq;
	unsigned int hsk_write_seq;
} gnutls_dtls_prestate_st;

int gnutls_dtls_cookie_send(gnutls_datum_t * key,
			    void *client_data,
			    size_t client_data_size,
			    gnutls_dtls_prestate_st * prestate,
			    gnutls_transport_ptr_t ptr,
			    gnutls_push_func push_func);

int gnutls_dtls_cookie_verify(gnutls_datum_t * key,
			      void *client_data,
			      size_t client_data_size, void *_msg,
			      size_t msg_size,
			      gnutls_dtls_prestate_st * prestate);

void gnutls_dtls_prestate_set(gnutls_session_t session,
			      gnutls_dtls_prestate_st * prestate);

unsigned int gnutls_record_get_discarded(gnutls_session_t session);

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif				/* GNUTLS_DTLS_H */
PK�vFZf'���g�g
abstract.hnu�[���/*
 * Copyright (C) 2010-2012 Free Software Foundation, Inc.
 * Copyright (C) 2015-2017 Red Hat, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

#ifndef __GNUTLS_ABSTRACT_H
#define __GNUTLS_ABSTRACT_H

#include <gnutls/gnutls.h>
#include <gnutls/x509.h>
#include <gnutls/pkcs11.h>
#include <gnutls/openpgp.h>
#include <gnutls/tpm.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

/* Public key operations */

#define GNUTLS_PUBKEY_VERIFY_FLAG_TLS_RSA GNUTLS_PUBKEY_VERIFY_FLAG_TLS1_RSA
/**
 * gnutls_pubkey_flags:
 * @GNUTLS_PUBKEY_DISABLE_CALLBACKS: The following flag disables call to PIN callbacks. Only
 *   relevant to TPM keys.
 * @GNUTLS_PUBKEY_GET_OPENPGP_FINGERPRINT: request an OPENPGP fingerprint instead of the default.
 *
 * Enumeration of different certificate import flags.
 */
typedef enum gnutls_pubkey_flags {
	GNUTLS_PUBKEY_DISABLE_CALLBACKS = 1 << 2,
	GNUTLS_PUBKEY_GET_OPENPGP_FINGERPRINT = 1 << 3
} gnutls_pubkey_flags_t;

/**
 * gnutls_abstract_export_flags:
 * @GNUTLS_EXPORT_FLAG_NO_LZ: do not prepend a leading zero to exported values
 *
 * Enumeration of different certificate import flags.
 */
typedef enum gnutls_abstract_export_flags {
	GNUTLS_EXPORT_FLAG_NO_LZ = 1
} gnutls_abstract_export_flags_t;

#define GNUTLS_PUBKEY_VERIFY_FLAG_TLS1_RSA GNUTLS_VERIFY_USE_TLS1_RSA

typedef int (*gnutls_privkey_sign_func) (gnutls_privkey_t key,
					 void *userdata,
					 const gnutls_datum_t *raw_data,
					 gnutls_datum_t * signature);


typedef int (*gnutls_privkey_decrypt_func) (gnutls_privkey_t key,
					    void *userdata,
					    const gnutls_datum_t *ciphertext,
					    gnutls_datum_t * plaintext);

typedef int (*gnutls_privkey_decrypt_func2) (gnutls_privkey_t key,
					     void *userdata,
					     const gnutls_datum_t *ciphertext,
					     unsigned char * plaintext,
					     size_t plaintext_size);

/* to be called to sign pre-hashed data. The input will be
 * the output of the hash (such as SHA256) corresponding to
 * the signature algorithm. The algorithm GNUTLS_SIGN_RSA_RAW
 * will be provided when RSA PKCS#1 DigestInfo structure is provided
 * as data (when this is called from a TLS 1.0 or 1.1 session).
 */
typedef int (*gnutls_privkey_sign_hash_func) (gnutls_privkey_t key,
					      gnutls_sign_algorithm_t algo,
					      void *userdata,
					      unsigned int flags,
					      const gnutls_datum_t *hash,
					      gnutls_datum_t * signature);

/* to be called to sign data. The input data will be
 * the data to be signed (and hashed), with the provided
 * signature algorithm. This function is used for algorithms
 * like ed25519 which cannot take pre-hashed data as input.
 */
typedef int (*gnutls_privkey_sign_data_func) (gnutls_privkey_t key,
					      gnutls_sign_algorithm_t algo,
					      void *userdata,
					      unsigned int flags,
					      const gnutls_datum_t *data,
					      gnutls_datum_t * signature);

typedef void (*gnutls_privkey_deinit_func) (gnutls_privkey_t key,
					    void *userdata);


#define GNUTLS_SIGN_ALGO_TO_FLAGS(sig) (unsigned int)((sig)<<20)
#define GNUTLS_FLAGS_TO_SIGN_ALGO(flags) (unsigned int)((flags)>>20)

/* Should return the public key algorithm (gnutls_pk_algorithm_t) */
#define GNUTLS_PRIVKEY_INFO_PK_ALGO 1
/* Should return the preferred signature algorithm (gnutls_sign_algorithm_t) or 0. */
#define GNUTLS_PRIVKEY_INFO_SIGN_ALGO (1<<1)
/* Should return true (1) or false (0) if the provided sign algorithm
 * (obtained with GNUTLS_FLAGS_TO_SIGN_ALGO) is supported.
 */
#define GNUTLS_PRIVKEY_INFO_HAVE_SIGN_ALGO (1<<2)
/* Should return the number of bits of the public key algorithm (required for RSA-PSS)
 * It is the value that should be returned by gnutls_pubkey_get_pk_algorithm() */
#define GNUTLS_PRIVKEY_INFO_PK_ALGO_BITS (1<<3)

/* returns information on the public key associated with userdata */
typedef int (*gnutls_privkey_info_func) (gnutls_privkey_t key, unsigned int flags, void *userdata);

int gnutls_pubkey_init(gnutls_pubkey_t * key);
void gnutls_pubkey_deinit(gnutls_pubkey_t key);

int gnutls_pubkey_verify_params(gnutls_pubkey_t key);

void gnutls_pubkey_set_pin_function(gnutls_pubkey_t key,
				    gnutls_pin_callback_t fn,
				    void *userdata);

int gnutls_pubkey_get_pk_algorithm(gnutls_pubkey_t key,
				   unsigned int *bits);

int
gnutls_pubkey_set_spki(gnutls_pubkey_t key,
			const gnutls_x509_spki_t spki,
			unsigned int flags);

int
gnutls_pubkey_get_spki(gnutls_pubkey_t key,
			const gnutls_x509_spki_t spki,
			unsigned int flags);

int gnutls_pubkey_import_x509(gnutls_pubkey_t key,
			      gnutls_x509_crt_t crt, unsigned int flags);
int gnutls_pubkey_import_x509_crq(gnutls_pubkey_t key,
				  gnutls_x509_crq_t crq,
				  unsigned int flags);
int gnutls_pubkey_import_pkcs11(gnutls_pubkey_t key,
				gnutls_pkcs11_obj_t obj,
				unsigned int flags);
int gnutls_pubkey_import_openpgp(gnutls_pubkey_t key,
				 gnutls_openpgp_crt_t crt,
				 unsigned int flags);

int gnutls_pubkey_import_openpgp_raw(gnutls_pubkey_t pkey,
				     const gnutls_datum_t * data,
				     gnutls_openpgp_crt_fmt_t
				     format,
				     const gnutls_openpgp_keyid_t
				     keyid, unsigned int flags);
int gnutls_pubkey_import_x509_raw(gnutls_pubkey_t pkey,
				  const gnutls_datum_t * data,
				  gnutls_x509_crt_fmt_t format,
				  unsigned int flags);

int
gnutls_pubkey_import_privkey(gnutls_pubkey_t key,
			     gnutls_privkey_t pkey,
			     unsigned int usage, unsigned int flags);

int
gnutls_pubkey_import_tpm_url(gnutls_pubkey_t pkey,
			     const char *url,
			     const char *srk_password, unsigned int flags);

int
gnutls_pubkey_import_url(gnutls_pubkey_t key, const char *url,
			 unsigned int flags);

int
gnutls_pubkey_import_tpm_raw(gnutls_pubkey_t pkey,
			     const gnutls_datum_t * fdata,
			     gnutls_tpmkey_fmt_t format,
			     const char *srk_password, unsigned int flags);

int gnutls_pubkey_get_preferred_hash_algorithm(gnutls_pubkey_t key,
					       gnutls_digest_algorithm_t
					       * hash, unsigned int *mand);

#define gnutls_pubkey_get_pk_rsa_raw gnutls_pubkey_export_rsa_raw
int gnutls_pubkey_export_rsa_raw(gnutls_pubkey_t key,
				 gnutls_datum_t * m, gnutls_datum_t * e);

int gnutls_pubkey_export_rsa_raw2(gnutls_pubkey_t key,
				  gnutls_datum_t * m, gnutls_datum_t * e,
				  unsigned flags);

#define gnutls_pubkey_get_pk_dsa_raw gnutls_pubkey_export_dsa_raw
int gnutls_pubkey_export_dsa_raw(gnutls_pubkey_t key,
				 gnutls_datum_t * p,
				 gnutls_datum_t * q,
				 gnutls_datum_t * g, gnutls_datum_t * y);

int gnutls_pubkey_export_dsa_raw2(gnutls_pubkey_t key,
				 gnutls_datum_t * p,
				 gnutls_datum_t * q,
				 gnutls_datum_t * g, gnutls_datum_t * y,
				 unsigned flags);

int gnutls_pubkey_export_ecc_raw2(gnutls_pubkey_t key,
				 gnutls_ecc_curve_t * curve,
				 gnutls_datum_t * x, gnutls_datum_t * y,
				 unsigned flags);

int gnutls_pubkey_export_gost_raw2(gnutls_pubkey_t key,
				   gnutls_ecc_curve_t * curve,
				   gnutls_digest_algorithm_t * digest,
				   gnutls_gost_paramset_t * paramset,
				   gnutls_datum_t * x, gnutls_datum_t * y,
				   unsigned int flags);

#define gnutls_pubkey_get_pk_ecc_raw gnutls_pubkey_export_ecc_raw
int gnutls_pubkey_export_ecc_raw(gnutls_pubkey_t key,
				 gnutls_ecc_curve_t * curve,
				 gnutls_datum_t * x, gnutls_datum_t * y);

#define gnutls_pubkey_get_pk_ecc_x962 gnutls_pubkey_export_ecc_x962
int gnutls_pubkey_export_ecc_x962(gnutls_pubkey_t key,
				  gnutls_datum_t * parameters,
				  gnutls_datum_t * ecpoint);

int gnutls_pubkey_export(gnutls_pubkey_t key,
			 gnutls_x509_crt_fmt_t format,
			 void *output_data, size_t * output_data_size);

int gnutls_pubkey_export2(gnutls_pubkey_t key,
			  gnutls_x509_crt_fmt_t format,
			  gnutls_datum_t * out);

int gnutls_pubkey_get_key_id(gnutls_pubkey_t key,
			     unsigned int flags,
			     unsigned char *output_data,
			     size_t * output_data_size);

int
gnutls_pubkey_get_openpgp_key_id(gnutls_pubkey_t key,
				 unsigned int flags,
				 unsigned char *output_data,
				 size_t * output_data_size,
				 unsigned int *subkey);

int gnutls_pubkey_get_key_usage(gnutls_pubkey_t key, unsigned int *usage);
int gnutls_pubkey_set_key_usage(gnutls_pubkey_t key, unsigned int usage);

int gnutls_pubkey_import(gnutls_pubkey_t key,
			 const gnutls_datum_t * data,
			 gnutls_x509_crt_fmt_t format);


#define gnutls_pubkey_import_pkcs11_url(key, url, flags) gnutls_pubkey_import_url(key, url, flags)

int gnutls_pubkey_import_dsa_raw(gnutls_pubkey_t key,
				 const gnutls_datum_t * p,
				 const gnutls_datum_t * q,
				 const gnutls_datum_t * g,
				 const gnutls_datum_t * y);
int gnutls_pubkey_import_rsa_raw(gnutls_pubkey_t key,
				 const gnutls_datum_t * m,
				 const gnutls_datum_t * e);

int
gnutls_pubkey_import_ecc_x962(gnutls_pubkey_t key,
			      const gnutls_datum_t * parameters,
			      const gnutls_datum_t * ecpoint);

int
gnutls_pubkey_import_ecc_raw(gnutls_pubkey_t key,
			     gnutls_ecc_curve_t curve,
			     const gnutls_datum_t * x,
			     const gnutls_datum_t * y);

int
gnutls_pubkey_import_gost_raw(gnutls_pubkey_t key,
			     gnutls_ecc_curve_t curve,
			     gnutls_digest_algorithm_t digest,
			     gnutls_gost_paramset_t paramset,
			     const gnutls_datum_t * x,
			     const gnutls_datum_t * y);

int
gnutls_pubkey_encrypt_data(gnutls_pubkey_t key,
			   unsigned int flags,
			   const gnutls_datum_t * plaintext,
			   gnutls_datum_t * ciphertext);

int gnutls_x509_crt_set_pubkey(gnutls_x509_crt_t crt, gnutls_pubkey_t key);

int gnutls_x509_crq_set_pubkey(gnutls_x509_crq_t crq, gnutls_pubkey_t key);

int
gnutls_pubkey_verify_hash2(gnutls_pubkey_t key,
			   gnutls_sign_algorithm_t algo,
			   unsigned int flags,
			   const gnutls_datum_t * hash,
			   const gnutls_datum_t * signature);

int
gnutls_pubkey_verify_data2(gnutls_pubkey_t pubkey,
			   gnutls_sign_algorithm_t algo,
			   unsigned int flags,
			   const gnutls_datum_t * data,
			   const gnutls_datum_t * signature);

/* Private key operations */

int gnutls_privkey_init(gnutls_privkey_t * key);
void gnutls_privkey_deinit(gnutls_privkey_t key);

/* macros to allow specifying a subgroup and group size in gnutls_privkey_generate()
 * and gnutls_x509_privkey_generate() */
#define GNUTLS_SUBGROUP_TO_BITS(group, subgroup) (unsigned int)((subgroup<<16)|(group))
#define GNUTLS_BITS_TO_SUBGROUP(bits) ((bits >> 16) & 0xFFFF)
#define GNUTLS_BITS_TO_GROUP(bits) (bits & 0xFFFF)
#define GNUTLS_BITS_HAVE_SUBGROUP(bits) ((bits) & 0xFFFF0000)

int
gnutls_privkey_generate (gnutls_privkey_t key,
                         gnutls_pk_algorithm_t algo, unsigned int bits,
                         unsigned int flags);
int
gnutls_privkey_generate2(gnutls_privkey_t pkey,
			 gnutls_pk_algorithm_t algo, unsigned int bits,
			 unsigned int flags, const gnutls_keygen_data_st *data, unsigned data_size);

int
gnutls_privkey_set_spki(gnutls_privkey_t key,
			const gnutls_x509_spki_t spki,
			unsigned int flags);

int
gnutls_privkey_get_spki(gnutls_privkey_t key,
			const gnutls_x509_spki_t spki,
			unsigned int flags);

int gnutls_privkey_verify_seed(gnutls_privkey_t key, gnutls_digest_algorithm_t, const void *seed, size_t seed_size);
int gnutls_privkey_get_seed(gnutls_privkey_t key, gnutls_digest_algorithm_t*, void *seed, size_t *seed_size);

int gnutls_privkey_verify_params(gnutls_privkey_t key);

void gnutls_privkey_set_flags(gnutls_privkey_t key, unsigned int flags);

void gnutls_privkey_set_pin_function (gnutls_privkey_t key,
                                      gnutls_pin_callback_t fn, void *userdata);

int gnutls_privkey_get_pk_algorithm(gnutls_privkey_t key,
				    unsigned int *bits);
gnutls_privkey_type_t gnutls_privkey_get_type(gnutls_privkey_t key);
int gnutls_privkey_status(gnutls_privkey_t key);

/**
 * gnutls_privkey_flags:
 * @GNUTLS_PRIVKEY_SIGN_FLAG_TLS1_RSA: Make an RSA signature on the hashed data as in the TLS protocol.
 * @GNUTLS_PRIVKEY_SIGN_FLAG_RSA_PSS: Make an RSA signature on the hashed data with the PSS padding.
 * @GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE: Make a signature on the hashed data with reproducible parameters.
 *   For RSA-PSS, that means to use empty salt instead of random value. To
 *   verify a signature created using this flag, the corresponding SPKI needs
 *   to be set on the public key. Use gnutls_pubkey_set_spki() for that.
 *   For ECDSA/DSA, it uses the deterministic construction of random parameter
 *   according to RFC 6979. Note that this only supports the NIST curves and DSA
 *   subgroup bits up to 512.
 * @GNUTLS_PRIVKEY_IMPORT_AUTO_RELEASE: When importing a private key, automatically
 *   release it when the structure it was imported is released.
 * @GNUTLS_PRIVKEY_IMPORT_COPY: Copy required values during import.
 * @GNUTLS_PRIVKEY_DISABLE_CALLBACKS: The following flag disables call to PIN callbacks etc.
 *   Only relevant to TPM keys.
 * @GNUTLS_PRIVKEY_FLAG_PROVABLE: When generating a key involving prime numbers, use provable primes; a seed may be required.
 * @GNUTLS_PRIVKEY_FLAG_CA: The generated private key is going to be used as a CA (relevant for RSA-PSS keys).
 * @GNUTLS_PRIVKEY_FLAG_EXPORT_COMPAT: Keys generated or imported as provable require an extended format which cannot be read by previous versions
 *   of gnutls or other applications. By setting this flag the key will be exported in a backwards compatible way,
 *   even if the information about the seed used will be lost.
 *
 * Enumeration of different certificate import flags.
 */
typedef enum gnutls_privkey_flags {
	GNUTLS_PRIVKEY_IMPORT_AUTO_RELEASE = 1,
	GNUTLS_PRIVKEY_IMPORT_COPY = 1 << 1,
	GNUTLS_PRIVKEY_DISABLE_CALLBACKS = 1 << 2,
	GNUTLS_PRIVKEY_SIGN_FLAG_TLS1_RSA = 1 << 4,
	GNUTLS_PRIVKEY_FLAG_PROVABLE = 1 << 5,
	GNUTLS_PRIVKEY_FLAG_EXPORT_COMPAT = 1 << 6,
	GNUTLS_PRIVKEY_SIGN_FLAG_RSA_PSS = 1 << 7,
	GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE = 1 << 8,
	GNUTLS_PRIVKEY_FLAG_CA = 1 << 9
} gnutls_privkey_flags_t;

int gnutls_privkey_import_pkcs11(gnutls_privkey_t pkey,
				 gnutls_pkcs11_privkey_t key,
				 unsigned int flags);
int gnutls_privkey_import_x509(gnutls_privkey_t pkey,
			       gnutls_x509_privkey_t key,
			       unsigned int flags);
int gnutls_privkey_import_openpgp(gnutls_privkey_t pkey,
				  gnutls_openpgp_privkey_t key,
				  unsigned int flags);

int gnutls_privkey_export_x509(gnutls_privkey_t pkey,
                               gnutls_x509_privkey_t * key);
int gnutls_privkey_export_openpgp(gnutls_privkey_t pkey,
                                  gnutls_openpgp_privkey_t * key);
int
gnutls_privkey_export_pkcs11(gnutls_privkey_t pkey,
                             gnutls_pkcs11_privkey_t *key);

int gnutls_privkey_import_openpgp_raw(gnutls_privkey_t pkey,
				      const gnutls_datum_t * data,
				      gnutls_openpgp_crt_fmt_t
				      format,
				      const gnutls_openpgp_keyid_t
				      keyid, const char *password);

int gnutls_privkey_import_x509_raw(gnutls_privkey_t pkey,
				   const gnutls_datum_t * data,
				   gnutls_x509_crt_fmt_t format,
				   const char *password,
				   unsigned int flags);

int
gnutls_privkey_import_tpm_raw(gnutls_privkey_t pkey,
			      const gnutls_datum_t * fdata,
			      gnutls_tpmkey_fmt_t format,
			      const char *srk_password,
			      const char *key_password,
			      unsigned int flags);

int
gnutls_privkey_import_tpm_url(gnutls_privkey_t pkey,
			      const char *url,
			      const char *srk_password,
			      const char *key_password,
			      unsigned int flags);

int gnutls_privkey_import_url(gnutls_privkey_t key,
			      const char *url, unsigned int flags);

#if 0
/* for documentation purposes */
int gnutls_privkey_import_pkcs11_url(gnutls_privkey_t key, const char *url);
#endif

#define gnutls_privkey_import_pkcs11_url(key, url) gnutls_privkey_import_url(key, url, 0)

int
gnutls_privkey_import_ext(gnutls_privkey_t pkey,
			  gnutls_pk_algorithm_t pk,
			  void *userdata,
			  gnutls_privkey_sign_func sign_func,
			  gnutls_privkey_decrypt_func
			  decrypt_func, unsigned int flags);

int
gnutls_privkey_import_ext2(gnutls_privkey_t pkey,
			   gnutls_pk_algorithm_t pk,
			   void *userdata,
			   gnutls_privkey_sign_func sign_func,
			   gnutls_privkey_decrypt_func
			   decrypt_func,
			   gnutls_privkey_deinit_func deinit_func,
			   unsigned int flags);

int
gnutls_privkey_import_ext3(gnutls_privkey_t pkey,
                           void *userdata,
                           gnutls_privkey_sign_func sign_func,
                           gnutls_privkey_decrypt_func decrypt_func,
                           gnutls_privkey_deinit_func deinit_func,
                           gnutls_privkey_info_func info_func,
                           unsigned int flags);

int
gnutls_privkey_import_ext4(gnutls_privkey_t pkey,
                           void *userdata,
                           gnutls_privkey_sign_data_func sign_data_func,
                           gnutls_privkey_sign_hash_func sign_hash_func,
                           gnutls_privkey_decrypt_func decrypt_func,
                           gnutls_privkey_deinit_func deinit_func,
                           gnutls_privkey_info_func info_func,
                           unsigned int flags);

int gnutls_privkey_import_dsa_raw(gnutls_privkey_t key,
				       const gnutls_datum_t * p,
				       const gnutls_datum_t * q,
				       const gnutls_datum_t * g,
				       const gnutls_datum_t * y,
				       const gnutls_datum_t * x);

int gnutls_privkey_import_rsa_raw(gnutls_privkey_t key,
					const gnutls_datum_t * m,
					const gnutls_datum_t * e,
					const gnutls_datum_t * d,
					const gnutls_datum_t * p,
					const gnutls_datum_t * q,
					const gnutls_datum_t * u,
					const gnutls_datum_t * e1,
					const gnutls_datum_t * e2);
int gnutls_privkey_import_ecc_raw(gnutls_privkey_t key,
				       gnutls_ecc_curve_t curve,
				       const gnutls_datum_t * x,
				       const gnutls_datum_t * y,
				       const gnutls_datum_t * k);

int gnutls_privkey_import_gost_raw(gnutls_privkey_t key,
				       gnutls_ecc_curve_t curve,
				       gnutls_digest_algorithm_t digest,
				       gnutls_gost_paramset_t paramset,
				       const gnutls_datum_t * x,
				       const gnutls_datum_t * y,
				       const gnutls_datum_t * k);


int gnutls_privkey_sign_data(gnutls_privkey_t signer,
			     gnutls_digest_algorithm_t hash,
			     unsigned int flags,
			     const gnutls_datum_t * data,
			     gnutls_datum_t * signature);

int gnutls_privkey_sign_data2(gnutls_privkey_t signer,
			      gnutls_sign_algorithm_t algo,
			      unsigned int flags,
			      const gnutls_datum_t * data,
			      gnutls_datum_t * signature);

#define gnutls_privkey_sign_raw_data(key, flags, data, sig) \
	gnutls_privkey_sign_hash ( key, 0, GNUTLS_PRIVKEY_SIGN_FLAG_TLS1_RSA, data, sig)

int gnutls_privkey_sign_hash(gnutls_privkey_t signer,
			     gnutls_digest_algorithm_t hash_algo,
			     unsigned int flags,
			     const gnutls_datum_t * hash_data,
			     gnutls_datum_t * signature);

int gnutls_privkey_sign_hash2(gnutls_privkey_t signer,
			      gnutls_sign_algorithm_t algo,
			      unsigned int flags,
			      const gnutls_datum_t * hash_data,
			      gnutls_datum_t * signature);

int gnutls_privkey_decrypt_data(gnutls_privkey_t key,
				unsigned int flags,
				const gnutls_datum_t * ciphertext,
				gnutls_datum_t * plaintext);

int gnutls_privkey_decrypt_data2(gnutls_privkey_t key,
				 unsigned int flags,
				 const gnutls_datum_t * ciphertext,
				 unsigned char * plaintext,
                                 size_t plaintext_size);

int
gnutls_privkey_export_rsa_raw(gnutls_privkey_t key,
				    gnutls_datum_t * m, gnutls_datum_t * e,
				    gnutls_datum_t * d, gnutls_datum_t * p,
				    gnutls_datum_t * q, gnutls_datum_t * u,
				    gnutls_datum_t * e1,
				    gnutls_datum_t * e2);

int
gnutls_privkey_export_rsa_raw2(gnutls_privkey_t key,
				    gnutls_datum_t * m, gnutls_datum_t * e,
				    gnutls_datum_t * d, gnutls_datum_t * p,
				    gnutls_datum_t * q, gnutls_datum_t * u,
				    gnutls_datum_t * e1,
				    gnutls_datum_t * e2, unsigned flags);

int
gnutls_privkey_export_dsa_raw(gnutls_privkey_t key,
			     gnutls_datum_t * p, gnutls_datum_t * q,
			     gnutls_datum_t * g, gnutls_datum_t * y,
			     gnutls_datum_t * x);

int
gnutls_privkey_export_dsa_raw2(gnutls_privkey_t key,
			     gnutls_datum_t * p, gnutls_datum_t * q,
			     gnutls_datum_t * g, gnutls_datum_t * y,
			     gnutls_datum_t * x, unsigned flags);

int
gnutls_privkey_export_ecc_raw(gnutls_privkey_t key,
				       gnutls_ecc_curve_t * curve,
				       gnutls_datum_t * x,
				       gnutls_datum_t * y,
				       gnutls_datum_t * k);

int
gnutls_privkey_export_ecc_raw2(gnutls_privkey_t key,
				       gnutls_ecc_curve_t * curve,
				       gnutls_datum_t * x,
				       gnutls_datum_t * y,
				       gnutls_datum_t * k,
				       unsigned flags);

int
gnutls_privkey_export_gost_raw2(gnutls_privkey_t key,
				       gnutls_ecc_curve_t * curve,
				       gnutls_digest_algorithm_t * digest,
				       gnutls_gost_paramset_t * paramset,
				       gnutls_datum_t * x,
				       gnutls_datum_t * y,
				       gnutls_datum_t * k,
				       unsigned flags);


int gnutls_x509_crt_privkey_sign(gnutls_x509_crt_t crt,
				 gnutls_x509_crt_t issuer,
				 gnutls_privkey_t issuer_key,
				 gnutls_digest_algorithm_t dig,
				 unsigned int flags);

int gnutls_x509_crl_privkey_sign(gnutls_x509_crl_t crl,
				 gnutls_x509_crt_t issuer,
				 gnutls_privkey_t issuer_key,
				 gnutls_digest_algorithm_t dig,
				 unsigned int flags);

int gnutls_x509_crq_privkey_sign(gnutls_x509_crq_t crq,
				 gnutls_privkey_t key,
				 gnutls_digest_algorithm_t dig,
				 unsigned int flags);

/**
 * gnutls_pcert_st:
 * @pubkey: public key of parsed certificate.
 * @cert: certificate itself of parsed certificate
 * @type: type of certificate, a #gnutls_certificate_type_t type.
 *
 * A parsed certificate.
 */
typedef struct gnutls_pcert_st {
	gnutls_pubkey_t pubkey;
	gnutls_datum_t cert;
	gnutls_certificate_type_t type;
} gnutls_pcert_st;

/* This flag is unused/ignored */
#define GNUTLS_PCERT_NO_CERT 1

int gnutls_pcert_import_x509(gnutls_pcert_st * pcert,
			     gnutls_x509_crt_t crt, unsigned int flags);

int gnutls_pcert_import_x509_list(gnutls_pcert_st * pcert,
				  gnutls_x509_crt_t *crt, unsigned *ncrt,
				  unsigned int flags);

int gnutls_pcert_export_x509(gnutls_pcert_st * pcert,
                             gnutls_x509_crt_t * crt);

int
gnutls_pcert_list_import_x509_raw(gnutls_pcert_st * pcerts,
				  unsigned int *pcert_max,
				  const gnutls_datum_t * data,
				  gnutls_x509_crt_fmt_t format,
				  unsigned int flags);

int gnutls_pcert_list_import_x509_file(gnutls_pcert_st *pcert_list,
				       unsigned *pcert_list_size,
				       const char *file,
				       gnutls_x509_crt_fmt_t format,
				       gnutls_pin_callback_t pin_fn,
				       void *pin_fn_userdata,
				       unsigned int flags);

int gnutls_pcert_import_x509_raw(gnutls_pcert_st * pcert,
				 const gnutls_datum_t * cert,
				 gnutls_x509_crt_fmt_t format,
				 unsigned int flags);

int gnutls_pcert_import_openpgp_raw(gnutls_pcert_st * pcert,
				    const gnutls_datum_t * cert,
				    gnutls_openpgp_crt_fmt_t
				    format,
				    gnutls_openpgp_keyid_t keyid,
				    unsigned int flags);

int gnutls_pcert_import_openpgp(gnutls_pcert_st * pcert,
				gnutls_openpgp_crt_t crt,
				unsigned int flags);

int gnutls_pcert_export_openpgp(gnutls_pcert_st * pcert,
                                gnutls_openpgp_crt_t * crt);

void gnutls_pcert_deinit(gnutls_pcert_st * pcert);

int gnutls_pcert_import_rawpk(gnutls_pcert_st* pcert,
			     gnutls_pubkey_t key, unsigned int flags);

int gnutls_pcert_import_rawpk_raw(gnutls_pcert_st* pcert,
				    const gnutls_datum_t* rawpubkey,
				    gnutls_x509_crt_fmt_t format,
				    unsigned int key_usage, unsigned int flags);

/* For certificate credentials */
	/* This is the same as gnutls_certificate_retrieve_function()
	 * but retrieves a gnutls_pcert_st which requires much less processing
	 * within the library.
	 */
typedef int gnutls_certificate_retrieve_function2(gnutls_session_t,
				  const gnutls_datum_t *req_ca_rdn,
				  int nreqs,
				  const gnutls_pk_algorithm_t *pk_algos,
				  int pk_algos_length,
				  gnutls_pcert_st**,
				  unsigned int *pcert_length,
				  gnutls_privkey_t *privkey);


void gnutls_certificate_set_retrieve_function2
    (gnutls_certificate_credentials_t cred,
     gnutls_certificate_retrieve_function2 *func);

struct gnutls_cert_retr_st {
	unsigned version; /* set to 1 */
	gnutls_certificate_credentials_t cred;
	const gnutls_datum_t *req_ca_rdn;
	unsigned nreqs;
	const gnutls_pk_algorithm_t *pk_algos;
	unsigned pk_algos_length;

	/* other fields may be added if version is > 1 */
	unsigned char padding[64];
};

/* When the callback sets this value, gnutls will deinitialize the given
 * values after use */
#define GNUTLS_CERT_RETR_DEINIT_ALL 1

typedef int gnutls_certificate_retrieve_function3(
				gnutls_session_t,
				const struct gnutls_cert_retr_st *info,
				gnutls_pcert_st **certs,
				unsigned int *pcert_length,
				gnutls_ocsp_data_st **ocsp,
				unsigned int *ocsp_length,
				gnutls_privkey_t *privkey,
				unsigned int *flags);


void gnutls_certificate_set_retrieve_function3
    (gnutls_certificate_credentials_t cred,
     gnutls_certificate_retrieve_function3 *func);

int
gnutls_certificate_set_key(gnutls_certificate_credentials_t res,
			   const char **names,
			   int names_size,
			   gnutls_pcert_st * pcert_list,
			   int pcert_list_size, gnutls_privkey_t key);

int
gnutls_pubkey_print(gnutls_pubkey_t pubkey,
		    gnutls_certificate_print_formats_t format,
		    gnutls_datum_t * out);

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif
PK�vFZ�9T���self-test.hnu�[���/*
 * Copyright (C) 2014 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

#ifndef __GNUTLS_SELF_H
#define __GNUTLS_SELF_H

#include <gnutls/gnutls.h>

 /* Self checking functions */
 
#define GNUTLS_SELF_TEST_FLAG_ALL 1
#define GNUTLS_SELF_TEST_FLAG_NO_COMPAT (1<<1)

int gnutls_cipher_self_test(unsigned flags, gnutls_cipher_algorithm_t cipher);
int gnutls_mac_self_test(unsigned flags, gnutls_mac_algorithm_t mac);
int gnutls_digest_self_test(unsigned flags, gnutls_digest_algorithm_t digest);
int gnutls_pk_self_test(unsigned flags, gnutls_pk_algorithm_t pk);
int gnutls_hkdf_self_test(unsigned flags, gnutls_mac_algorithm_t mac);
int gnutls_pbkdf2_self_test(unsigned flags, gnutls_mac_algorithm_t mac);
int gnutls_tlsprf_self_test(unsigned flags, gnutls_mac_algorithm_t mac);

#endif
PK�vFZ'
�?��
x509-ext.hnu�[���/*
 * Copyright (C) 2014 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

/* Prototypes for direct handling of extension data */

#ifndef GNUTLS_X509_EXT_H
#define GNUTLS_X509_EXT_H

#include <gnutls/gnutls.h>
#include <gnutls/x509.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

typedef struct gnutls_subject_alt_names_st *gnutls_subject_alt_names_t;

int gnutls_subject_alt_names_init(gnutls_subject_alt_names_t *);
void gnutls_subject_alt_names_deinit(gnutls_subject_alt_names_t sans);
int gnutls_subject_alt_names_get(gnutls_subject_alt_names_t sans, unsigned int seq,
				 unsigned int *san_type, gnutls_datum_t * san,
				 gnutls_datum_t * othername_oid);
int gnutls_subject_alt_names_set(gnutls_subject_alt_names_t sans,
				 unsigned int san_type,
				 const gnutls_datum_t * san,
				 const char* othername_oid);


int gnutls_x509_ext_import_subject_alt_names(const gnutls_datum_t * ext,
					 gnutls_subject_alt_names_t,
					 unsigned int flags);
int gnutls_x509_ext_export_subject_alt_names(gnutls_subject_alt_names_t,
					  gnutls_datum_t * ext);

/* They are exactly the same */
#define gnutls_x509_ext_import_issuer_alt_name gnutls_x509_ext_import_subject_alt_name
#define gnutls_x509_ext_export_issuer_alt_name gnutls_x509_ext_export_subject_alt_name

typedef struct gnutls_x509_crl_dist_points_st *gnutls_x509_crl_dist_points_t;

int gnutls_x509_crl_dist_points_init(gnutls_x509_crl_dist_points_t *);
void gnutls_x509_crl_dist_points_deinit(gnutls_x509_crl_dist_points_t);
int gnutls_x509_crl_dist_points_get(gnutls_x509_crl_dist_points_t, unsigned int seq,
				  unsigned int *type,
				  gnutls_datum_t *dist, unsigned int *reason_flags);
int gnutls_x509_crl_dist_points_set(gnutls_x509_crl_dist_points_t,
				 gnutls_x509_subject_alt_name_t type,
				 const gnutls_datum_t *dist, unsigned int reason_flags);

int gnutls_x509_ext_import_crl_dist_points(const gnutls_datum_t * ext,
					gnutls_x509_crl_dist_points_t dp,
					unsigned int flags);
int gnutls_x509_ext_export_crl_dist_points(gnutls_x509_crl_dist_points_t dp,
					gnutls_datum_t * ext);

int gnutls_x509_ext_import_name_constraints(const gnutls_datum_t * ext,
					 gnutls_x509_name_constraints_t nc,
					 unsigned int flags);
int gnutls_x509_ext_export_name_constraints(gnutls_x509_name_constraints_t nc,
					 gnutls_datum_t * ext);

typedef struct gnutls_x509_aia_st *gnutls_x509_aia_t;

int gnutls_x509_aia_init(gnutls_x509_aia_t *);
void gnutls_x509_aia_deinit(gnutls_x509_aia_t);
int gnutls_x509_aia_get(gnutls_x509_aia_t aia, unsigned int seq,
			gnutls_datum_t *oid,
			unsigned *san_type,
			gnutls_datum_t *san);
int gnutls_x509_aia_set(gnutls_x509_aia_t aia,
			const char *oid,
			unsigned san_type,
			const gnutls_datum_t * san);

int gnutls_x509_ext_import_aia(const gnutls_datum_t * ext,
				gnutls_x509_aia_t,
				unsigned int flags);
int gnutls_x509_ext_export_aia(gnutls_x509_aia_t aia,
					      gnutls_datum_t * ext);

int gnutls_x509_ext_import_subject_key_id(const gnutls_datum_t * ext,
				       gnutls_datum_t * id);
int gnutls_x509_ext_export_subject_key_id(const gnutls_datum_t * id,
				       gnutls_datum_t * ext);

typedef struct gnutls_x509_aki_st *gnutls_x509_aki_t;

int gnutls_x509_ext_export_authority_key_id(gnutls_x509_aki_t,
					 gnutls_datum_t * ext);
int gnutls_x509_ext_import_authority_key_id(const gnutls_datum_t * ext,
					 gnutls_x509_aki_t,
					 unsigned int flags);

int gnutls_x509_othername_to_virtual(const char *oid, 
				     const gnutls_datum_t *othername,
				     unsigned int *virt_type,
				     gnutls_datum_t *virt);

int gnutls_x509_aki_init(gnutls_x509_aki_t *);
int gnutls_x509_aki_get_id(gnutls_x509_aki_t, gnutls_datum_t *id);
int gnutls_x509_aki_get_cert_issuer(gnutls_x509_aki_t aki, unsigned int seq,
				 unsigned int *san_type, gnutls_datum_t * san,
				 gnutls_datum_t *othername_oid,
				 gnutls_datum_t *serial);
int gnutls_x509_aki_set_id(gnutls_x509_aki_t aki, const gnutls_datum_t *id);
int gnutls_x509_aki_set_cert_issuer(gnutls_x509_aki_t aki, 
				 unsigned int san_type, 
				 const gnutls_datum_t * san,
				 const char *othername_oid,
				 const gnutls_datum_t * serial);
void gnutls_x509_aki_deinit(gnutls_x509_aki_t);

int gnutls_x509_ext_import_private_key_usage_period(const gnutls_datum_t * ext,
						 time_t * activation,
						 time_t * expiration);
int gnutls_x509_ext_export_private_key_usage_period(time_t activation,
						 time_t expiration,
						 gnutls_datum_t * ext);

int gnutls_x509_ext_import_basic_constraints(const gnutls_datum_t * ext,
					  unsigned int *ca, int *pathlen);
int gnutls_x509_ext_export_basic_constraints(unsigned int ca, int pathlen,
					  gnutls_datum_t * ext);

typedef struct gnutls_x509_key_purposes_st *gnutls_x509_key_purposes_t;

int gnutls_x509_key_purpose_init(gnutls_x509_key_purposes_t *p);
void gnutls_x509_key_purpose_deinit(gnutls_x509_key_purposes_t p);
int gnutls_x509_key_purpose_set(gnutls_x509_key_purposes_t p, const char *oid);
int gnutls_x509_key_purpose_get(gnutls_x509_key_purposes_t p, unsigned idx, gnutls_datum_t *oid);

int gnutls_x509_ext_import_key_purposes(const gnutls_datum_t * ext,
				     gnutls_x509_key_purposes_t,
				     unsigned int flags);
int gnutls_x509_ext_export_key_purposes(gnutls_x509_key_purposes_t,
				     gnutls_datum_t * ext);


int gnutls_x509_ext_import_key_usage(const gnutls_datum_t * ext,
				  unsigned int *key_usage);
int gnutls_x509_ext_export_key_usage(unsigned int key_usage,
				  gnutls_datum_t * ext);

int gnutls_x509_ext_import_inhibit_anypolicy(const gnutls_datum_t * ext,
				  unsigned int *skipcerts);
int gnutls_x509_ext_export_inhibit_anypolicy(unsigned int skipcerts,
				  gnutls_datum_t * ext);

int gnutls_x509_ext_import_proxy(const gnutls_datum_t * ext, int *pathlen,
			      char **policyLanguage, char **policy,
			      size_t * sizeof_policy);
int gnutls_x509_ext_export_proxy(int pathLenConstraint, const char *policyLanguage,
			      const char *policy, size_t sizeof_policy,
			      gnutls_datum_t * ext);

typedef struct gnutls_x509_policies_st *gnutls_x509_policies_t;

int gnutls_x509_policies_init(gnutls_x509_policies_t *);
void gnutls_x509_policies_deinit(gnutls_x509_policies_t);

int gnutls_x509_policies_get(gnutls_x509_policies_t policies, unsigned int seq,
				 struct gnutls_x509_policy_st *policy);
int gnutls_x509_policies_set(gnutls_x509_policies_t policies,
				 const struct gnutls_x509_policy_st *policy);

int gnutls_x509_ext_import_policies(const gnutls_datum_t * ext, gnutls_x509_policies_t
				 policies,
				 unsigned int flags);
int gnutls_x509_ext_export_policies(gnutls_x509_policies_t policies,
				 gnutls_datum_t * ext);

int gnutls_x509_ext_import_tlsfeatures(const gnutls_datum_t * ext,
									   gnutls_x509_tlsfeatures_t,
									   unsigned int flags);

int gnutls_x509_ext_export_tlsfeatures(gnutls_x509_tlsfeatures_t f,
					  gnutls_datum_t * ext);

int gnutls_x509_tlsfeatures_add(gnutls_x509_tlsfeatures_t f, unsigned int feature);

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif				/* GNUTLS_X509_H */
PK�vFZD4�'�,�,crypto.hnu�[���/*
 * Copyright (C) 2008-2012 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

#ifndef GNUTLS_CRYPTO_H
#define GNUTLS_CRYPTO_H

#include <gnutls/gnutls.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

typedef struct api_cipher_hd_st *gnutls_cipher_hd_t;

int gnutls_cipher_init(gnutls_cipher_hd_t * handle,
		       gnutls_cipher_algorithm_t cipher,
		       const gnutls_datum_t * key,
		       const gnutls_datum_t * iv);
int gnutls_cipher_encrypt(const gnutls_cipher_hd_t handle,
			  void *text, size_t textlen);
int gnutls_cipher_decrypt(const gnutls_cipher_hd_t handle,
			  void *ciphertext, size_t ciphertextlen);
int gnutls_cipher_decrypt2(gnutls_cipher_hd_t handle,
			   const void *ciphertext,
			   size_t ciphertextlen, void *text,
			   size_t textlen);
int gnutls_cipher_encrypt2(gnutls_cipher_hd_t handle,
			   const void *text, size_t textlen,
			   void *ciphertext, size_t ciphertextlen);

void gnutls_cipher_set_iv(gnutls_cipher_hd_t handle, void *iv,
			  size_t ivlen);

int gnutls_cipher_tag(gnutls_cipher_hd_t handle, void *tag,
		      size_t tag_size);
int gnutls_cipher_add_auth(gnutls_cipher_hd_t handle,
			   const void *text, size_t text_size);

void gnutls_cipher_deinit(gnutls_cipher_hd_t handle);
unsigned gnutls_cipher_get_block_size(gnutls_cipher_algorithm_t algorithm) __GNUTLS_CONST__;
unsigned gnutls_cipher_get_iv_size(gnutls_cipher_algorithm_t algorithm) __GNUTLS_CONST__;
unsigned gnutls_cipher_get_tag_size(gnutls_cipher_algorithm_t algorithm) __GNUTLS_CONST__;

/* AEAD API
 */
typedef struct api_aead_cipher_hd_st *gnutls_aead_cipher_hd_t;

int gnutls_aead_cipher_init(gnutls_aead_cipher_hd_t * handle,
			    gnutls_cipher_algorithm_t cipher,
			    const gnutls_datum_t * key);
int
gnutls_aead_cipher_decrypt(gnutls_aead_cipher_hd_t handle,
			   const void *nonce, size_t nonce_len,
			   const void *auth, size_t auth_len,
			   size_t tag_size,
			   const void *ctext, size_t ctext_len,
			   void *ptext, size_t *ptext_len);
int
gnutls_aead_cipher_encrypt(gnutls_aead_cipher_hd_t handle,
			   const void *nonce, size_t nonce_len,
			   const void *auth, size_t auth_len,
			   size_t tag_size,
			   const void *ptext, size_t ptext_len,
			   void *ctext, size_t *ctext_len);

int
gnutls_aead_cipher_encryptv(gnutls_aead_cipher_hd_t handle,
			    const void *nonce, size_t nonce_len,
			    const giovec_t *auth_iov, int auth_iovcnt,
			    size_t tag_size,
			    const giovec_t *iov, int iovcnt,
			    void *ctext, size_t *ctext_len);

int
gnutls_aead_cipher_encryptv2(gnutls_aead_cipher_hd_t handle,
			     const void *nonce, size_t nonce_len,
			     const giovec_t *auth_iov, int auth_iovcnt,
			     const giovec_t *iov, int iovcnt,
			     void *tag, size_t *tag_size);

int
gnutls_aead_cipher_decryptv2(gnutls_aead_cipher_hd_t handle,
			     const void *nonce, size_t nonce_len,
			     const giovec_t *auth_iov, int auth_iovcnt,
			     const giovec_t *iov, int iovcnt,
			     void *tag, size_t tag_size);

void gnutls_aead_cipher_deinit(gnutls_aead_cipher_hd_t handle);

/* Hash - MAC API */

typedef struct hash_hd_st *gnutls_hash_hd_t;
typedef struct hmac_hd_st *gnutls_hmac_hd_t;

size_t gnutls_mac_get_nonce_size(gnutls_mac_algorithm_t algorithm) __GNUTLS_CONST__;
int gnutls_hmac_init(gnutls_hmac_hd_t * dig,
		     gnutls_mac_algorithm_t algorithm,
		     const void *key, size_t keylen);
void gnutls_hmac_set_nonce(gnutls_hmac_hd_t handle,
			   const void *nonce, size_t nonce_len);
int gnutls_hmac(gnutls_hmac_hd_t handle, const void *text, size_t textlen);
void gnutls_hmac_output(gnutls_hmac_hd_t handle, void *digest);
void gnutls_hmac_deinit(gnutls_hmac_hd_t handle, void *digest);
unsigned gnutls_hmac_get_len(gnutls_mac_algorithm_t algorithm) __GNUTLS_CONST__;
unsigned gnutls_hmac_get_key_size(gnutls_mac_algorithm_t algorithm) __GNUTLS_CONST__;
int gnutls_hmac_fast(gnutls_mac_algorithm_t algorithm,
		     const void *key, size_t keylen,
		     const void *text, size_t textlen, void *digest);
gnutls_hmac_hd_t gnutls_hmac_copy(gnutls_hmac_hd_t handle);

int gnutls_hash_init(gnutls_hash_hd_t * dig,
		     gnutls_digest_algorithm_t algorithm);
int gnutls_hash(gnutls_hash_hd_t handle, const void *text, size_t textlen);
void gnutls_hash_output(gnutls_hash_hd_t handle, void *digest);
void gnutls_hash_deinit(gnutls_hash_hd_t handle, void *digest);
unsigned gnutls_hash_get_len(gnutls_digest_algorithm_t algorithm) __GNUTLS_CONST__;
int gnutls_hash_fast(gnutls_digest_algorithm_t algorithm,
		     const void *text, size_t textlen, void *digest);
gnutls_hash_hd_t gnutls_hash_copy(gnutls_hash_hd_t handle);

/* KDF API */

int gnutls_hkdf_extract(gnutls_mac_algorithm_t mac,
			const gnutls_datum_t *key,
			const gnutls_datum_t *salt,
			void *output);

int gnutls_hkdf_expand(gnutls_mac_algorithm_t mac,
		       const gnutls_datum_t *key,
		       const gnutls_datum_t *info,
		       void *output, size_t length);

int gnutls_pbkdf2(gnutls_mac_algorithm_t mac,
		  const gnutls_datum_t *key,
		  const gnutls_datum_t *salt,
		  unsigned iter_count,
		  void *output, size_t length);

/* register ciphers */


/**
 * gnutls_rnd_level_t:
 * @GNUTLS_RND_NONCE: Non-predictable random number.  Fatal in parts
 *   of session if broken, i.e., vulnerable to statistical analysis.
 * @GNUTLS_RND_RANDOM: Pseudo-random cryptographic random number.
 *   Fatal in session if broken. Example use: temporal keys.
 * @GNUTLS_RND_KEY: Fatal in many sessions if broken. Example use:
 *   Long-term keys.
 *
 * Enumeration of random quality levels.
 */
typedef enum gnutls_rnd_level {
	GNUTLS_RND_NONCE = 0,
	GNUTLS_RND_RANDOM = 1,
	GNUTLS_RND_KEY = 2
} gnutls_rnd_level_t;

int gnutls_rnd(gnutls_rnd_level_t level, void *data, size_t len);

void gnutls_rnd_refresh(void);


/* API to override ciphers and MAC algorithms 
 */

typedef int (*gnutls_cipher_init_func) (gnutls_cipher_algorithm_t, void **ctx, int enc);
typedef int (*gnutls_cipher_setkey_func) (void *ctx, const void *key, size_t keysize);
/* old style ciphers */
typedef int (*gnutls_cipher_setiv_func) (void *ctx, const void *iv, size_t ivsize);
typedef int (*gnutls_cipher_getiv_func) (void *ctx, void *iv, size_t ivsize);
typedef int (*gnutls_cipher_encrypt_func) (void *ctx, const void *plain, size_t plainsize,
				void *encr, size_t encrsize);
typedef int (*gnutls_cipher_decrypt_func) (void *ctx, const void *encr, size_t encrsize,
			void *plain, size_t plainsize);

/* aead ciphers */
typedef int (*gnutls_cipher_auth_func) (void *ctx, const void *data, size_t datasize);
typedef void (*gnutls_cipher_tag_func) (void *ctx, void *tag, size_t tagsize);

typedef int (*gnutls_cipher_aead_encrypt_func) (void *ctx,
			const void *nonce, size_t noncesize,
			const void *auth, size_t authsize,
			size_t tag_size,
			const void *plain, size_t plainsize,
			void *encr, size_t encrsize);
typedef int (*gnutls_cipher_aead_decrypt_func) (void *ctx,
			const void *nonce, size_t noncesize,
			const void *auth, size_t authsize,
			size_t tag_size,
			const void *encr, size_t encrsize,
			void *plain, size_t plainsize);
typedef void (*gnutls_cipher_deinit_func) (void *ctx);

int
gnutls_crypto_register_cipher(gnutls_cipher_algorithm_t algorithm,
			      int priority,
			      gnutls_cipher_init_func init,
			      gnutls_cipher_setkey_func setkey,
			      gnutls_cipher_setiv_func setiv,
			      gnutls_cipher_encrypt_func encrypt,
			      gnutls_cipher_decrypt_func decrypt,
			      gnutls_cipher_deinit_func deinit)
			      _GNUTLS_GCC_ATTR_DEPRECATED;

int
gnutls_crypto_register_aead_cipher(gnutls_cipher_algorithm_t algorithm,
			      int priority,
			      gnutls_cipher_init_func init,
			      gnutls_cipher_setkey_func setkey,
			      gnutls_cipher_aead_encrypt_func aead_encrypt,
			      gnutls_cipher_aead_decrypt_func aead_decrypt,
			      gnutls_cipher_deinit_func deinit)
			      _GNUTLS_GCC_ATTR_DEPRECATED;

typedef int (*gnutls_mac_init_func) (gnutls_mac_algorithm_t, void **ctx);
typedef int (*gnutls_mac_setkey_func) (void *ctx, const void *key, size_t keysize);
typedef int (*gnutls_mac_setnonce_func) (void *ctx, const void *nonce, size_t noncesize);
typedef int (*gnutls_mac_hash_func) (void *ctx, const void *text, size_t textsize);
typedef int (*gnutls_mac_output_func) (void *src_ctx, void *digest, size_t digestsize);
typedef void (*gnutls_mac_deinit_func) (void *ctx);
typedef int (*gnutls_mac_fast_func) (gnutls_mac_algorithm_t, const void *nonce,
		     size_t nonce_size, const void *key, size_t keysize,
		     const void *text, size_t textsize, void *digest);
typedef void *(*gnutls_mac_copy_func) (const void *ctx);

int
gnutls_crypto_register_mac(gnutls_mac_algorithm_t mac,
			   int priority,
			   gnutls_mac_init_func init,
			   gnutls_mac_setkey_func setkey,
			   gnutls_mac_setnonce_func setnonce,
			   gnutls_mac_hash_func hash,
			   gnutls_mac_output_func output,
			   gnutls_mac_deinit_func deinit,
			   gnutls_mac_fast_func hash_fast)
			   _GNUTLS_GCC_ATTR_DEPRECATED;

typedef int (*gnutls_digest_init_func) (gnutls_digest_algorithm_t, void **ctx);
typedef int (*gnutls_digest_hash_func) (void *ctx, const void *text, size_t textsize);
typedef int (*gnutls_digest_output_func) (void *src_ctx, void *digest, size_t digestsize);
typedef void (*gnutls_digest_deinit_func) (void *ctx);
typedef int (*gnutls_digest_fast_func) (gnutls_digest_algorithm_t,
		     const void *text, size_t textsize, void *digest);
typedef void *(*gnutls_digest_copy_func) (const void *ctx);

int
gnutls_crypto_register_digest(gnutls_digest_algorithm_t digest,
			   int priority,
			   gnutls_digest_init_func init,
			   gnutls_digest_hash_func hash,
			   gnutls_digest_output_func output,
			   gnutls_digest_deinit_func deinit,
			   gnutls_digest_fast_func hash_fast)
			   _GNUTLS_GCC_ATTR_DEPRECATED;

/* RSA-PKCS#1 1.5 helper functions */
int
gnutls_encode_ber_digest_info(gnutls_digest_algorithm_t hash,
			      const gnutls_datum_t * digest,
			      gnutls_datum_t * output);

int
gnutls_decode_ber_digest_info(const gnutls_datum_t * info,
			      gnutls_digest_algorithm_t *hash,
			      unsigned char *digest, unsigned int *digest_size);

int gnutls_decode_rs_value(const gnutls_datum_t * sig_value, gnutls_datum_t *r, gnutls_datum_t *s);
int gnutls_encode_rs_value(gnutls_datum_t * sig_value, const gnutls_datum_t * r, const gnutls_datum_t * s);

int gnutls_encode_gost_rs_value(gnutls_datum_t * sig_value, const gnutls_datum_t * r, const gnutls_datum_t  *s);
int gnutls_decode_gost_rs_value(const gnutls_datum_t * sig_value, gnutls_datum_t * r, gnutls_datum_t * s);

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif
PK�vFZ�D�I0I0
gnutlsxx.hnu�[���/*
 * Copyright (C) 2006-2012 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

#ifndef GNUTLSXX_H
#define GNUTLSXX_H

#include <exception>
#include <vector>
#include <gnutls/gnutls.h>

namespace gnutls {

	class noncopyable {
	      protected:
		noncopyable() {
		} ~noncopyable() {
	      } private:
		// These are non-implemented.
		 noncopyable(const noncopyable &);
		noncopyable & operator=(const noncopyable &);
	};


	class exception:public std::exception {
	      public:
		exception(int x);
		const char *what() const throw();
		int get_code();
	      protected:
		int retcode;
	};


	class dh_params:private noncopyable {
	      public:
		dh_params();
		~dh_params();
		void import_raw(const gnutls_datum_t & prime,
				const gnutls_datum_t & generator);
		void import_pkcs3(const gnutls_datum_t & pkcs3_params,
				  gnutls_x509_crt_fmt_t format);
		void generate(unsigned int bits);

		void export_pkcs3(gnutls_x509_crt_fmt_t format,
				  unsigned char *params_data,
				  size_t * params_data_size);
		void export_raw(gnutls_datum_t & prime,
				gnutls_datum_t & generator);

		gnutls_dh_params_t get_params_t() const;
		 dh_params & operator=(const dh_params & src);
	      protected:
		 gnutls_dh_params_t params;
	};


	class rsa_params:private noncopyable {
	      public:
		rsa_params();
		~rsa_params();
		void import_raw(const gnutls_datum_t & m,
				const gnutls_datum_t & e,
				const gnutls_datum_t & d,
				const gnutls_datum_t & p,
				const gnutls_datum_t & q,
				const gnutls_datum_t & u);
		void import_pkcs1(const gnutls_datum_t & pkcs1_params,
				  gnutls_x509_crt_fmt_t format);
		void generate(unsigned int bits);

		void export_pkcs1(gnutls_x509_crt_fmt_t format,
				  unsigned char *params_data,
				  size_t * params_data_size);
		void export_raw(gnutls_datum_t & m, gnutls_datum_t & e,
				gnutls_datum_t & d, gnutls_datum_t & p,
				gnutls_datum_t & q, gnutls_datum_t & u);
		gnutls_rsa_params_t get_params_t() const;
		 rsa_params & operator=(const rsa_params & src);

	      protected:
		 gnutls_rsa_params_t params;
	};

	class session:private noncopyable {
	      protected:
		gnutls_session_t s;
	      public:
		session(unsigned int);
		 virtual ~ session();

		gnutls_session_t ptr();
		int bye(gnutls_close_request_t how);
		int handshake();

		gnutls_alert_description_t get_alert() const;

		int send_alert(gnutls_alert_level_t level,
			       gnutls_alert_description_t desc);
		int send_appropriate_alert(int err);

		gnutls_cipher_algorithm_t get_cipher() const;
		gnutls_kx_algorithm_t get_kx() const;
		gnutls_mac_algorithm_t get_mac() const;
		gnutls_compression_method_t get_compression() const;
		gnutls_certificate_type_t get_certificate_type() const;

		// for the handshake
		void set_private_extensions(bool allow);

		gnutls_handshake_description_t get_handshake_last_out()
		    const;
		gnutls_handshake_description_t get_handshake_last_in()
		    const;

		ssize_t send(const void *data, size_t sizeofdata);
		ssize_t recv(void *data, size_t sizeofdata);

		bool get_record_direction() const;

		// maximum packet size
		size_t get_max_size() const;
		void set_max_size(size_t size);

		size_t check_pending() const;

		void prf(size_t label_size, const char *label,
			 int server_random_first,
			 size_t extra_size, const char *extra,
			 size_t outsize, char *out);

		void prf_raw(size_t label_size, const char *label,
			     size_t seed_size, const char *seed,
			     size_t outsize, char *out);

		/* if you just want some defaults, use the following.
		 */
		void set_priority(const char *prio, const char **err_pos);
		void set_priority(gnutls_priority_t p);

		gnutls_protocol_t get_protocol_version() const;

		// for resuming sessions
		void set_data(const void *session_data,
			      size_t session_data_size);
		void get_data(void *session_data,
			      size_t * session_data_size) const;
		void get_data(gnutls_session_t session,
			      gnutls_datum_t & data) const;
		void get_id(void *session_id,
			    size_t * session_id_size) const;

		bool is_resumed() const;

		void set_max_handshake_packet_length(size_t max);

		void clear_credentials();
		void set_credentials(class credentials & cred);

		void set_transport_ptr(gnutls_transport_ptr_t ptr);
		void set_transport_ptr(gnutls_transport_ptr_t recv_ptr,
				       gnutls_transport_ptr_t send_ptr);
		gnutls_transport_ptr_t get_transport_ptr() const;
		void get_transport_ptr(gnutls_transport_ptr_t & recv_ptr,
				       gnutls_transport_ptr_t & send_ptr)
		    const;

		void set_transport_lowat(size_t num);
		void set_transport_push_function(gnutls_push_func
						 push_func);
		void set_transport_vec_push_function(gnutls_vec_push_func
						     vec_push_func);
		void set_transport_pull_function(gnutls_pull_func
						 pull_func);
		void set_transport_pull_timeout_function (gnutls_pull_timeout_func pull_timeout_func);

		void set_user_ptr(void *ptr);
		void *get_user_ptr() const;

		void send_openpgp_cert(gnutls_openpgp_crt_status_t status);

		gnutls_credentials_type_t get_auth_type() const;
		gnutls_credentials_type_t get_server_auth_type() const;
		gnutls_credentials_type_t get_client_auth_type() const;

		// informational stuff
		void set_dh_prime_bits(unsigned int bits);
		unsigned int get_dh_secret_bits() const;
		unsigned int get_dh_peers_public_bits() const;
		unsigned int get_dh_prime_bits() const;
		void get_dh_group(gnutls_datum_t & gen,
				  gnutls_datum_t & prime) const;
		void get_dh_pubkey(gnutls_datum_t & raw_key) const;
		void get_rsa_export_pubkey(gnutls_datum_t & exponent,
					   gnutls_datum_t & modulus) const;
		unsigned int get_rsa_export_modulus_bits() const;

		void get_our_certificate(gnutls_datum_t & cert) const;
		bool get_peers_certificate(std::vector < gnutls_datum_t >
					   &out_certs) const;
		bool get_peers_certificate(const gnutls_datum_t ** certs,
					   unsigned int *certs_size) const;

		time_t get_peers_certificate_activation_time() const;
		time_t get_peers_certificate_expiration_time() const;
		void verify_peers_certificate(unsigned int &status) const;

	};

// interface for databases
	class DB:private noncopyable {
	      public:
		virtual ~ DB() = 0;
		virtual bool store(const gnutls_datum_t & key,
				   const gnutls_datum_t & data) = 0;
		virtual bool retrieve(const gnutls_datum_t & key,
				      gnutls_datum_t & data) = 0;
		virtual bool remove(const gnutls_datum_t & key) = 0;
	};

	class server_session:public session {
	      public:
		server_session();
		server_session(int flags);
		~server_session();
		void db_remove() const;

		void set_db_cache_expiration(unsigned int seconds);
		void set_db(const DB & db);

		// returns true if session is expired
		bool db_check_entry(gnutls_datum_t & session_data) const;

		// server side only
		const char *get_srp_username() const;
		const char *get_psk_username() const;

		void get_server_name(void *data, size_t * data_length,
				     unsigned int *type,
				     unsigned int indx) const;

		int rehandshake();
		void set_certificate_request(gnutls_certificate_request_t);
	};

	class client_session:public session {
	      public:
		client_session();
		client_session(int flags);
		~client_session();

		void set_verify_cert(const char *hostname, unsigned flags);
		void set_server_name(gnutls_server_name_type_t type,
				     const void *name, size_t name_length);

		bool get_request_status();
	};


	class credentials:private noncopyable {
	      public:
		virtual ~ credentials() {
		} gnutls_credentials_type_t get_type() const;
	      protected:
		friend class session;
		credentials(gnutls_credentials_type_t t);
		void *ptr() const;
		void set_ptr(void *ptr);
		gnutls_credentials_type_t type;
	      private:
		void *cred;
	};

	class certificate_credentials:public credentials {
	      public:
		~certificate_credentials();
		certificate_credentials();

		void free_keys();
		void free_cas();
		void free_ca_names();
		void free_crls();

		void set_dh_params(const dh_params & params);
		void set_rsa_export_params(const rsa_params & params);
		void set_verify_flags(unsigned int flags);
		void set_verify_limits(unsigned int max_bits,
				       unsigned int max_depth);

		void set_x509_trust_file(const char *cafile,
					 gnutls_x509_crt_fmt_t type);
		void set_x509_trust(const gnutls_datum_t & CA,
				    gnutls_x509_crt_fmt_t type);

		void set_x509_trust(gnutls_x509_crt_t * ca_list,
				    int ca_list_size);

		void set_x509_crl_file(const char *crlfile,
				       gnutls_x509_crt_fmt_t type);
		void set_x509_crl(const gnutls_datum_t & CRL,
				  gnutls_x509_crt_fmt_t type);
		void set_x509_crl(gnutls_x509_crl_t * crl_list,
				  int crl_list_size);

		void set_x509_key_file(const char *certfile,
				       const char *KEYFILE,
				       gnutls_x509_crt_fmt_t type);
		void set_x509_key(const gnutls_datum_t & CERT,
				  const gnutls_datum_t & KEY,
				  gnutls_x509_crt_fmt_t type);

		void set_x509_key(gnutls_x509_crt_t * cert_list,
				  int cert_list_size,
				  gnutls_x509_privkey_t key);


		void set_simple_pkcs12_file(const char *pkcs12file,
					    gnutls_x509_crt_fmt_t type,
					    const char *password);

		void set_retrieve_function
		    (gnutls_certificate_retrieve_function * func);

	      protected:
		 gnutls_certificate_credentials_t cred;
	};

	class certificate_server_credentials:public certificate_credentials {
	      public:
		void set_params_function(gnutls_params_function * func);
	};

	class certificate_client_credentials:public certificate_credentials {
	      public:
	};




	class anon_server_credentials:public credentials {
	      public:
		anon_server_credentials();
		~anon_server_credentials();
		void set_dh_params(const dh_params & params);
		void set_params_function(gnutls_params_function * func);
	      protected:
		 gnutls_anon_server_credentials_t cred;
	};

	class anon_client_credentials:public credentials {
	      public:
		anon_client_credentials();
		~anon_client_credentials();
	      protected:
		gnutls_anon_client_credentials_t cred;
	};


	class srp_server_credentials:public credentials {
	      public:
		srp_server_credentials();
		~srp_server_credentials();
		void set_credentials_file(const char *password_file,
					  const char *password_conf_file);
		void set_credentials_function
		    (gnutls_srp_server_credentials_function * func);
	      protected:
		 gnutls_srp_server_credentials_t cred;
	};

	class srp_client_credentials:public credentials {
	      public:
		srp_client_credentials();
		~srp_client_credentials();
		void set_credentials(const char *username,
				     const char *password);
		void set_credentials_function
		    (gnutls_srp_client_credentials_function * func);
	      protected:
		 gnutls_srp_client_credentials_t cred;
	};


	class psk_server_credentials:public credentials {
	      public:
		psk_server_credentials();
		~psk_server_credentials();
		void set_credentials_file(const char *password_file);
		void set_credentials_function
		    (gnutls_psk_server_credentials_function * func);
		void set_dh_params(const dh_params & params);
		void set_params_function(gnutls_params_function * func);
	      protected:
		 gnutls_psk_server_credentials_t cred;
	};

	class psk_client_credentials:public credentials {
	      public:
		psk_client_credentials();
		~psk_client_credentials();
		void set_credentials(const char *username,
				     const gnutls_datum_t & key,
				     gnutls_psk_key_flags flags);
		void set_credentials_function
		    (gnutls_psk_client_credentials_function * func);
	      protected:
		 gnutls_psk_client_credentials_t cred;
	};


}				/* namespace */

#endif				/* GNUTLSXX_H */
PK�vFZ�>E&��socket.hnu�[���/*
 * Copyright (C) 2016 Free Software Foundation, Inc.
 *
 * Author: Tim Ruehsen
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

/* This file contains socket related types, prototypes and includes.
 */

#ifndef GNUTLS_SOCKET_H
#define GNUTLS_SOCKET_H

#include <gnutls/gnutls.h>

/* Get socklen_t */
#include <sys/socket.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

void gnutls_transport_set_fastopen(gnutls_session_t session,
                                   int fd,
                                   struct sockaddr *connect_addr,
                                   socklen_t connect_addrlen,
                                   unsigned int flags);

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif				/* GNUTLS_SOCKET_H */
PK�vFZ��8�dd
system-keys.hnu�[���/*
 * Copyright (C) 2014 Red Hat, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

#ifndef __GNUTLS_SYSTEM_KEYS_H
#define __GNUTLS_SYSTEM_KEYS_H

#include <gnutls/gnutls.h>
#include <gnutls/x509.h>

/* This API allows to access user key and certificate pairs that are
 * available in the current system. If any passwords are required,
 * they will be requested through the pin callbacks.
 */

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

struct system_key_iter_st;
typedef struct system_key_iter_st *gnutls_system_key_iter_t;

void gnutls_system_key_iter_deinit(gnutls_system_key_iter_t iter);
int
gnutls_system_key_iter_get_info(gnutls_system_key_iter_t *iter,
			       unsigned cert_type /* gnutls_certificate_type_t */,
			       char **cert_url,
			       char **key_url,
			       char **label,
			       gnutls_datum_t *der,
			       unsigned int flags);

int gnutls_system_key_delete(const char *cert_url, const char *key_url);

int gnutls_system_key_add_x509(gnutls_x509_crt_t crt, gnutls_x509_privkey_t privkey,
				const char *label, char **cert_url, char **key_url);

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif
PK�vFZjb�(�(ocsp.hnu�[���/*
 * Copyright (C) 2011-2012 Free Software Foundation, Inc.
 *
 * Author: Simon Josefsson
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

/* Online Certificate Status Protocol - RFC 2560
 */

#ifndef GNUTLS_OCSP_H
#define GNUTLS_OCSP_H

#include <gnutls/gnutls.h>
#include <gnutls/x509.h>

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

#define GNUTLS_OCSP_NONCE "1.3.6.1.5.5.7.48.1.2"

/**
 * gnutls_ocsp_print_formats_t:
 * @GNUTLS_OCSP_PRINT_FULL: Full information about OCSP request/response.
 * @GNUTLS_OCSP_PRINT_COMPACT: More compact information about OCSP request/response.
 *
 * Enumeration of different OCSP printing variants.
 */
typedef enum gnutls_ocsp_print_formats_t {
	GNUTLS_OCSP_PRINT_FULL = 0,
	GNUTLS_OCSP_PRINT_COMPACT = 1
} gnutls_ocsp_print_formats_t;

/**
 * gnutls_ocsp_resp_status_t:
 * @GNUTLS_OCSP_RESP_SUCCESSFUL: Response has valid confirmations.
 * @GNUTLS_OCSP_RESP_MALFORMEDREQUEST: Illegal confirmation request
 * @GNUTLS_OCSP_RESP_INTERNALERROR: Internal error in issuer
 * @GNUTLS_OCSP_RESP_TRYLATER: Try again later
 * @GNUTLS_OCSP_RESP_SIGREQUIRED: Must sign the request
 * @GNUTLS_OCSP_RESP_UNAUTHORIZED: Request unauthorized
 *
 * Enumeration of different OCSP response status codes.
 */
typedef enum gnutls_ocsp_resp_status_t {
	GNUTLS_OCSP_RESP_SUCCESSFUL = 0,
	GNUTLS_OCSP_RESP_MALFORMEDREQUEST = 1,
	GNUTLS_OCSP_RESP_INTERNALERROR = 2,
	GNUTLS_OCSP_RESP_TRYLATER = 3,
	GNUTLS_OCSP_RESP_SIGREQUIRED = 5,
	GNUTLS_OCSP_RESP_UNAUTHORIZED = 6
} gnutls_ocsp_resp_status_t;

/**
 * gnutls_ocsp_cert_status_t:
 * @GNUTLS_OCSP_CERT_GOOD: Positive response to status inquiry.
 * @GNUTLS_OCSP_CERT_REVOKED: Certificate has been revoked.
 * @GNUTLS_OCSP_CERT_UNKNOWN: The responder doesn't know about the
 *   certificate.
 *
 * Enumeration of different OCSP response certificate status codes.
 */
typedef enum gnutls_ocsp_cert_status_t {
	GNUTLS_OCSP_CERT_GOOD = 0,
	GNUTLS_OCSP_CERT_REVOKED = 1,
	GNUTLS_OCSP_CERT_UNKNOWN = 2
} gnutls_ocsp_cert_status_t;

/**
 * gnutls_x509_crl_reason_t:
 * @GNUTLS_X509_CRLREASON_UNSPECIFIED: Unspecified reason.
 * @GNUTLS_X509_CRLREASON_KEYCOMPROMISE: Private key compromised.
 * @GNUTLS_X509_CRLREASON_CACOMPROMISE: CA compromised.
 * @GNUTLS_X509_CRLREASON_AFFILIATIONCHANGED: Affiliation has changed.
 * @GNUTLS_X509_CRLREASON_SUPERSEDED: Certificate superseded.
 * @GNUTLS_X509_CRLREASON_CESSATIONOFOPERATION: Operation has ceased.
 * @GNUTLS_X509_CRLREASON_CERTIFICATEHOLD: Certificate is on hold.
 * @GNUTLS_X509_CRLREASON_REMOVEFROMCRL: Will be removed from delta CRL.
 * @GNUTLS_X509_CRLREASON_PRIVILEGEWITHDRAWN: Privilege withdrawn.
 * @GNUTLS_X509_CRLREASON_AACOMPROMISE: AA compromised.
 *
 * Enumeration of different reason codes.  Note that this
 * corresponds to the CRLReason ASN.1 enumeration type, and not the
 * ReasonFlags ASN.1 bit string.
 */
typedef enum gnutls_x509_crl_reason_t {
	GNUTLS_X509_CRLREASON_UNSPECIFIED = 0,
	GNUTLS_X509_CRLREASON_KEYCOMPROMISE = 1,
	GNUTLS_X509_CRLREASON_CACOMPROMISE = 2,
	GNUTLS_X509_CRLREASON_AFFILIATIONCHANGED = 3,
	GNUTLS_X509_CRLREASON_SUPERSEDED = 4,
	GNUTLS_X509_CRLREASON_CESSATIONOFOPERATION = 5,
	GNUTLS_X509_CRLREASON_CERTIFICATEHOLD = 6,
	GNUTLS_X509_CRLREASON_REMOVEFROMCRL = 8,
	GNUTLS_X509_CRLREASON_PRIVILEGEWITHDRAWN = 9,
	GNUTLS_X509_CRLREASON_AACOMPROMISE = 10
} gnutls_x509_crl_reason_t;

/* When adding a verify failure reason update:
 * _gnutls_ocsp_verify_status_to_str()
 */
/**
 * gnutls_ocsp_verify_reason_t:
 * @GNUTLS_OCSP_VERIFY_SIGNER_NOT_FOUND: Signer cert not found.
 * @GNUTLS_OCSP_VERIFY_SIGNER_KEYUSAGE_ERROR: Signer keyusage bits incorrect.
 * @GNUTLS_OCSP_VERIFY_UNTRUSTED_SIGNER: Signer is not trusted.
 * @GNUTLS_OCSP_VERIFY_INSECURE_ALGORITHM: Signature using insecure algorithm.
 * @GNUTLS_OCSP_VERIFY_SIGNATURE_FAILURE: Signature mismatch.
 * @GNUTLS_OCSP_VERIFY_CERT_NOT_ACTIVATED: Signer cert is not yet activated.
 * @GNUTLS_OCSP_VERIFY_CERT_EXPIRED: Signer cert has expired.
 *
 * Enumeration of OCSP verify status codes, used by
 * gnutls_ocsp_resp_verify() and gnutls_ocsp_resp_verify_direct().
 */
typedef enum gnutls_ocsp_verify_reason_t {
	GNUTLS_OCSP_VERIFY_SIGNER_NOT_FOUND = 1,
	GNUTLS_OCSP_VERIFY_SIGNER_KEYUSAGE_ERROR = 2,
	GNUTLS_OCSP_VERIFY_UNTRUSTED_SIGNER = 4,
	GNUTLS_OCSP_VERIFY_INSECURE_ALGORITHM = 8,
	GNUTLS_OCSP_VERIFY_SIGNATURE_FAILURE = 16,
	GNUTLS_OCSP_VERIFY_CERT_NOT_ACTIVATED = 32,
	GNUTLS_OCSP_VERIFY_CERT_EXPIRED = 64
} gnutls_ocsp_verify_reason_t;

struct gnutls_ocsp_req_int;
typedef struct gnutls_ocsp_req_int *gnutls_ocsp_req_t;
typedef const struct gnutls_ocsp_req_int *gnutls_ocsp_req_const_t;

int gnutls_ocsp_req_init(gnutls_ocsp_req_t * req);
void gnutls_ocsp_req_deinit(gnutls_ocsp_req_t req);

int gnutls_ocsp_req_import(gnutls_ocsp_req_t req,
			   const gnutls_datum_t * data);
int gnutls_ocsp_req_export(gnutls_ocsp_req_const_t req, gnutls_datum_t * data);
int gnutls_ocsp_req_print(gnutls_ocsp_req_const_t req,
			  gnutls_ocsp_print_formats_t format,
			  gnutls_datum_t * out);

int gnutls_ocsp_req_get_version(gnutls_ocsp_req_const_t req);

int gnutls_ocsp_req_get_cert_id(gnutls_ocsp_req_const_t req,
				unsigned indx,
				gnutls_digest_algorithm_t * digest,
				gnutls_datum_t * issuer_name_hash,
				gnutls_datum_t * issuer_key_hash,
				gnutls_datum_t * serial_number);
int gnutls_ocsp_req_add_cert_id(gnutls_ocsp_req_t req,
				gnutls_digest_algorithm_t digest,
				const gnutls_datum_t *
				issuer_name_hash,
				const gnutls_datum_t *
				issuer_key_hash,
				const gnutls_datum_t * serial_number);
int gnutls_ocsp_req_add_cert(gnutls_ocsp_req_t req,
			     gnutls_digest_algorithm_t digest,
			     gnutls_x509_crt_t issuer,
			     gnutls_x509_crt_t cert);

int gnutls_ocsp_req_get_extension(gnutls_ocsp_req_const_t req,
				  unsigned indx,
				  gnutls_datum_t * oid,
				  unsigned int *critical,
				  gnutls_datum_t * data);
int gnutls_ocsp_req_set_extension(gnutls_ocsp_req_t req,
				  const char *oid,
				  unsigned int critical,
				  const gnutls_datum_t * data);

int gnutls_ocsp_req_get_nonce(gnutls_ocsp_req_const_t req,
			      unsigned int *critical,
			      gnutls_datum_t * nonce);
int gnutls_ocsp_req_set_nonce(gnutls_ocsp_req_t req,
			      unsigned int critical,
			      const gnutls_datum_t * nonce);
int gnutls_ocsp_req_randomize_nonce(gnutls_ocsp_req_t req);

struct gnutls_ocsp_resp_int;
typedef struct gnutls_ocsp_resp_int *gnutls_ocsp_resp_t;
typedef const struct gnutls_ocsp_resp_int *gnutls_ocsp_resp_const_t;

int gnutls_ocsp_resp_init(gnutls_ocsp_resp_t * resp);
void gnutls_ocsp_resp_deinit(gnutls_ocsp_resp_t resp);

int gnutls_ocsp_resp_import(gnutls_ocsp_resp_t resp,
			    const gnutls_datum_t * data);
int gnutls_ocsp_resp_import2(gnutls_ocsp_resp_t resp,
			     const gnutls_datum_t * data,
			     gnutls_x509_crt_fmt_t fmt);
int gnutls_ocsp_resp_export(gnutls_ocsp_resp_const_t resp,
			    gnutls_datum_t * data);
int gnutls_ocsp_resp_export2(gnutls_ocsp_resp_const_t resp,
			     gnutls_datum_t * data,
			     gnutls_x509_crt_fmt_t fmt);
int gnutls_ocsp_resp_print(gnutls_ocsp_resp_const_t resp,
			   gnutls_ocsp_print_formats_t format,
			   gnutls_datum_t * out);

int gnutls_ocsp_resp_get_status(gnutls_ocsp_resp_const_t resp);
int gnutls_ocsp_resp_get_response(gnutls_ocsp_resp_const_t resp,
				  gnutls_datum_t *
				  response_type_oid,
				  gnutls_datum_t * response);

int gnutls_ocsp_resp_get_version(gnutls_ocsp_resp_const_t resp);
int gnutls_ocsp_resp_get_responder(gnutls_ocsp_resp_const_t resp,
				   gnutls_datum_t * dn);
int gnutls_ocsp_resp_get_responder2(gnutls_ocsp_resp_const_t resp,
				    gnutls_datum_t * dn,
				    unsigned flags);

/* the raw key ID of the responder */
#define GNUTLS_OCSP_RESP_ID_KEY 1
/* the raw DN of the responder */
#define GNUTLS_OCSP_RESP_ID_DN 2
int
gnutls_ocsp_resp_get_responder_raw_id(gnutls_ocsp_resp_const_t resp,
				      unsigned type,
				      gnutls_datum_t * raw);

time_t gnutls_ocsp_resp_get_produced(gnutls_ocsp_resp_const_t resp);
int gnutls_ocsp_resp_get_single(gnutls_ocsp_resp_const_t resp,
				unsigned indx,
				gnutls_digest_algorithm_t * digest,
				gnutls_datum_t * issuer_name_hash,
				gnutls_datum_t * issuer_key_hash,
				gnutls_datum_t * serial_number,
				unsigned int *cert_status,
				time_t * this_update,
				time_t * next_update,
				time_t * revocation_time,
				unsigned int *revocation_reason);
int gnutls_ocsp_resp_get_extension(gnutls_ocsp_resp_const_t resp,
				   unsigned indx,
				   gnutls_datum_t * oid,
				   unsigned int *critical,
				   gnutls_datum_t * data);
int gnutls_ocsp_resp_get_nonce(gnutls_ocsp_resp_const_t resp,
			       unsigned int *critical,
			       gnutls_datum_t * nonce);
int gnutls_ocsp_resp_get_signature_algorithm(gnutls_ocsp_resp_const_t resp);
int gnutls_ocsp_resp_get_signature(gnutls_ocsp_resp_const_t resp,
				   gnutls_datum_t * sig);
int gnutls_ocsp_resp_get_certs(gnutls_ocsp_resp_const_t resp,
			       gnutls_x509_crt_t ** certs,
			       size_t * ncerts);

int gnutls_ocsp_resp_verify_direct(gnutls_ocsp_resp_const_t resp,
				   gnutls_x509_crt_t issuer,
				   unsigned int *verify,
				   unsigned int flags);
int gnutls_ocsp_resp_verify(gnutls_ocsp_resp_const_t resp,
			    gnutls_x509_trust_list_t trustlist,
			    unsigned int *verify, unsigned int flags);

int gnutls_ocsp_resp_check_crt(gnutls_ocsp_resp_const_t resp,
			       unsigned int indx, gnutls_x509_crt_t crt);

int
gnutls_ocsp_resp_list_import2(gnutls_ocsp_resp_t **ocsps,
			     unsigned int *size,
			     const gnutls_datum_t *resp_data,
			     gnutls_x509_crt_fmt_t format,
			     unsigned int flags);

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */
#endif				/* GNUTLS_OCSP_H */
PK�vFZ�6��$�$compat.hnu�[���/*
 * Copyright (C) 2008-2012 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */

/* Typedefs for more compatibility with older GnuTLS. */

#ifndef _GNUTLS_COMPAT_H
#define _GNUTLS_COMPAT_H

/* *INDENT-OFF* */
#ifdef __cplusplus
extern "C" {
#endif
/* *INDENT-ON* */

#ifdef __GNUC__

#define _GNUTLS_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)

#if !defined GNUTLS_INTERNAL_BUILD
#if _GNUTLS_GCC_VERSION >= 30100
#define _GNUTLS_GCC_ATTR_DEPRECATED __attribute__ ((__deprecated__))
#endif
#endif

#endif				/* __GNUC__ */

#ifndef _GNUTLS_GCC_ATTR_DEPRECATED
#define _GNUTLS_GCC_ATTR_DEPRECATED
#endif

/* gnutls_connection_end_t was made redundant in 2.99.0 */
typedef unsigned int gnutls_connection_end_t _GNUTLS_GCC_ATTR_DEPRECATED;

/* Stuff deprecated in 2.x */
typedef gnutls_cipher_algorithm_t gnutls_cipher_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_kx_algorithm_t gnutls_kx_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_mac_algorithm_t gnutls_mac_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_digest_algorithm_t gnutls_digest_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_compression_method_t gnutls_compression_method
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_connection_end_t gnutls_connection_end
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_crt_fmt_t gnutls_x509_crt_fmt
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_pk_algorithm_t gnutls_pk_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_sign_algorithm_t gnutls_sign_algorithm
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_close_request_t gnutls_close_request
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_certificate_request_t gnutls_certificate_request
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_certificate_status_t gnutls_certificate_status
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_session_t gnutls_session _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_alert_level_t gnutls_alert_level
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_alert_description_t gnutls_alert_description
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_subject_alt_name_t gnutls_x509_subject_alt_name
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_openpgp_privkey_t gnutls_openpgp_privkey
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_openpgp_keyring_t gnutls_openpgp_keyring
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_crt_t gnutls_x509_crt _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_privkey_t gnutls_x509_privkey
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_crl_t gnutls_x509_crl _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_x509_crq_t gnutls_x509_crq _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_certificate_credentials_t
    gnutls_certificate_credentials _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_anon_server_credentials_t
    gnutls_anon_server_credentials _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_anon_client_credentials_t
    gnutls_anon_client_credentials _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_srp_client_credentials_t
    gnutls_srp_client_credentials _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_srp_server_credentials_t
    gnutls_srp_server_credentials _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_dh_params_t gnutls_dh_params _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_rsa_params_t gnutls_rsa_params _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_params_type_t gnutls_params_type
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_credentials_type_t gnutls_credentials_type
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_certificate_type_t gnutls_certificate_type
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_datum_t gnutls_datum _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_transport_ptr_t gnutls_transport_ptr
    _GNUTLS_GCC_ATTR_DEPRECATED;

/* Old verification flags */
#define GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT  (0)

/* Old SRP alerts removed in 2.1.x because the TLS-SRP RFC was
   modified to use the PSK alert. */
#define GNUTLS_A_MISSING_SRP_USERNAME GNUTLS_A_UNKNOWN_PSK_IDENTITY
#define GNUTLS_A_UNKNOWN_SRP_USERNAME GNUTLS_A_UNKNOWN_PSK_IDENTITY

/* OpenPGP stuff renamed in 2.1.x. */
#define GNUTLS_OPENPGP_KEY GNUTLS_OPENPGP_CERT
#define GNUTLS_OPENPGP_KEY_FINGERPRINT GNUTLS_OPENPGP_CERT_FINGERPRINT
#define gnutls_openpgp_send_key gnutls_openpgp_send_cert
typedef gnutls_openpgp_crt_status_t gnutls_openpgp_key_status_t
    _GNUTLS_GCC_ATTR_DEPRECATED;
typedef gnutls_openpgp_crt_t gnutls_openpgp_key_t
    _GNUTLS_GCC_ATTR_DEPRECATED;
#define gnutls_openpgp_key_init gnutls_openpgp_crt_init
#define gnutls_openpgp_key_deinit gnutls_openpgp_crt_deinit
#define gnutls_openpgp_key_import gnutls_openpgp_crt_import
#define gnutls_openpgp_key_export gnutls_openpgp_crt_export
#define gnutls_openpgp_key_get_key_usage gnutls_openpgp_crt_get_key_usage
#define gnutls_openpgp_key_get_fingerprint gnutls_openpgp_crt_get_fingerprint
#define gnutls_openpgp_key_get_pk_algorithm gnutls_openpgp_crt_get_pk_algorithm
#define gnutls_openpgp_key_get_name gnutls_openpgp_crt_get_name
#define gnutls_openpgp_key_get_version gnutls_openpgp_crt_get_version
#define gnutls_openpgp_key_get_creation_time gnutls_openpgp_crt_get_creation_time
#define gnutls_openpgp_key_get_expiration_time gnutls_openpgp_crt_get_expiration_time
#define gnutls_openpgp_key_get_id gnutls_openpgp_crt_get_id
#define gnutls_openpgp_key_check_hostname gnutls_openpgp_crt_check_hostname

/* OpenPGP stuff renamed in 2.3.x. */
#define gnutls_openpgp_crt_get_id gnutls_openpgp_crt_get_key_id

/* New better names renamed in 2.3.x, add these for backwards
   compatibility with old poor names.*/
#define GNUTLS_X509_CRT_FULL GNUTLS_CRT_PRINT_FULL
#define GNUTLS_X509_CRT_ONELINE GNUTLS_CRT_PRINT_ONELINE
#define GNUTLS_X509_CRT_UNSIGNED_FULL GNUTLS_CRT_PRINT_UNSIGNED_FULL

/* Namespace problems. */
#define LIBGNUTLS_VERSION GNUTLS_VERSION
#define LIBGNUTLS_VERSION_MAJOR GNUTLS_VERSION_MAJOR
#define LIBGNUTLS_VERSION_MINOR GNUTLS_VERSION_MINOR
#define LIBGNUTLS_VERSION_PATCH GNUTLS_VERSION_PATCH
#define LIBGNUTLS_VERSION_NUMBER GNUTLS_VERSION_NUMBER
#define LIBGNUTLS_EXTRA_VERSION GNUTLS_VERSION

/* This is a very dangerous and error-prone function.
 * Use gnutls_privkey_sign_hash() instead.
 */
int gnutls_x509_privkey_sign_hash(gnutls_x509_privkey_t key,
				  const gnutls_datum_t * hash,
				  gnutls_datum_t * signature)
    _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_openpgp_privkey_sign_hash(gnutls_openpgp_privkey_t key,
				     const gnutls_datum_t * hash,
				     gnutls_datum_t * signature)
    _GNUTLS_GCC_ATTR_DEPRECATED;

	/* gnutls_pubkey_get_preferred_hash_algorithm() */
int gnutls_x509_crt_get_preferred_hash_algorithm(gnutls_x509_crt_t
						 crt,
						 gnutls_digest_algorithm_t
						 * hash, unsigned int
						 *mand)
    _GNUTLS_GCC_ATTR_DEPRECATED;

	/* use gnutls_privkey_sign_hash() with the GNUTLS_PRIVKEY_SIGN_FLAG_TLS1_RSA flag */

#ifdef _ISOC99_SOURCE
/* we provide older functions for compatibility as inline functions that
 * depend on gnutls_session_get_random. */

static inline const void
*gnutls_session_get_server_random(gnutls_session_t session)
    _GNUTLS_GCC_ATTR_DEPRECATED;
static inline const void
*gnutls_session_get_server_random(gnutls_session_t session)
{
	gnutls_datum_t rnd;
	gnutls_session_get_random(session, NULL, &rnd);	/*doc-skip */
	return rnd.data;
}

static inline const void
*gnutls_session_get_client_random(gnutls_session_t session)
    _GNUTLS_GCC_ATTR_DEPRECATED;
static inline const void
*gnutls_session_get_client_random(gnutls_session_t session)
{
	gnutls_datum_t rnd;
	gnutls_session_get_random(session, &rnd, NULL);	/*doc-skip */
	return rnd.data;
}
#endif

void
gnutls_global_set_mem_functions(gnutls_alloc_function alloc_func,
				gnutls_alloc_function secure_alloc_func,
				gnutls_is_secure_function is_secure_func,
				gnutls_realloc_function realloc_func,
				gnutls_free_function free_func) _GNUTLS_GCC_ATTR_DEPRECATED;

/* defined in old headers - unused nevertheless */
#define GNUTLS_SUPPLEMENTAL_USER_MAPPING_DATA 0

/* old compression related functions */
gnutls_compression_method_t
gnutls_compression_get(gnutls_session_t session) _GNUTLS_GCC_ATTR_DEPRECATED;

const char *
gnutls_compression_get_name(gnutls_compression_method_t
			    algorithm) __GNUTLS_CONST__ _GNUTLS_GCC_ATTR_DEPRECATED;

gnutls_compression_method_t
	gnutls_compression_get_id(const char *name) __GNUTLS_CONST__ _GNUTLS_GCC_ATTR_DEPRECATED;

const gnutls_compression_method_t *
	gnutls_compression_list(void) __GNUTLS_PURE__ _GNUTLS_GCC_ATTR_DEPRECATED;

int gnutls_priority_compression_list(gnutls_priority_t pcache,
				     const unsigned int **list) _GNUTLS_GCC_ATTR_DEPRECATED;

/* *INDENT-OFF* */
#ifdef __cplusplus
}
#endif
/* *INDENT-ON* */

#endif				/* _GNUTLS_COMPAT_H */
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