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/*
* Copyright (C) 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 <http://www.gnu.org/licenses/>
*
*/
#ifndef SECRETS_H
#define SECRETS_H
#include "gnutls_int.h"
int _tls13_init_secret(gnutls_session_t session, const uint8_t *psk, size_t psk_size);
int _tls13_update_secret(gnutls_session_t session, const uint8_t *key, size_t key_size);
int _tls13_init_secret2(const mac_entry_st *prf,
const uint8_t *psk, size_t psk_size,
void *out);
int _tls13_derive_secret(gnutls_session_t session,
const char *label, unsigned label_size,
const uint8_t *msg, size_t msg_size,
const uint8_t secret[MAX_HASH_SIZE],
void *out /* of enough length to hold PRF MAC */);
int _tls13_derive_secret2(const mac_entry_st *prf,
const char *label, unsigned label_size,
const uint8_t *tbh, size_t tbh_size,
const uint8_t secret[MAX_CIPHER_KEY_SIZE],
void *out);
int _tls13_expand_secret(gnutls_session_t session,
const char *label, unsigned label_size,
const uint8_t *msg, size_t msg_size,
const uint8_t secret[MAX_HASH_SIZE],
unsigned out_size,
void *out);
int _tls13_expand_secret2(const mac_entry_st *prf,
const char *label, unsigned label_size,
const uint8_t *msg, size_t msg_size,
const uint8_t secret[MAX_CIPHER_KEY_SIZE],
unsigned out_size, void *out);
#endif
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