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/*
 * Copyright (C) 2000-2012 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 <http://www.gnu.org/licenses/>
 *
 */

#ifndef GNUTLS_SIG_H
#define GNUTLS_SIG_H

#include <gnutls/abstract.h>

/* While this is currently equal to the length of RSA/SHA512
 * signature, it should also be sufficient for DSS signature and any
 * other RSA signatures including one with the old MD5/SHA1-combined
 * format.
 */
#define MAX_SIG_SIZE (19 + MAX_HASH_SIZE)

int _gnutls_handshake_sign_crt_vrfy(gnutls_session_t session,
				    gnutls_pcert_st * cert,
				    gnutls_privkey_t pkey,
				    gnutls_datum_t * signature);

int _gnutls_handshake_sign_data(gnutls_session_t session,
				gnutls_pcert_st * cert,
				gnutls_privkey_t pkey,
				gnutls_datum_t * params,
				gnutls_datum_t * signature,
				gnutls_sign_algorithm_t * algo);

int _gnutls_handshake_verify_crt_vrfy(gnutls_session_t session,
				      gnutls_pcert_st * cert,
				      gnutls_datum_t * signature,
				      gnutls_sign_algorithm_t);

int _gnutls_handshake_verify_data(gnutls_session_t session,
				  gnutls_pcert_st * cert,
				  const gnutls_datum_t * params,
				  gnutls_datum_t * signature,
				  gnutls_sign_algorithm_t algo);

#endif