| /* |
| Copyright (C) 2005, 2004 Erik Eliasson, Johan Bilien |
| |
| This library 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 library; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| |
| * In addition, as a special exception, the copyright holders give |
| * permission to link the code of portions of this program with the |
| * OpenSSL library under certain conditions as described in each |
| * individual source file, and distribute linked combinations |
| * including the two. |
| * You must obey the GNU General Public License in all respects |
| * for all of the code used other than OpenSSL. If you modify |
| * file(s) with this exception, you may extend this exception to your |
| * version of the file(s), but you are not obligated to do so. If you |
| * do not wish to do so, delete this exception statement from your |
| * version. If you delete this exception statement from all source |
| * files in the program, then also delete it here. |
| |
| */ |
| |
| /* |
| * Authors: Erik Eliasson <eliasson@it.kth.se> |
| * Johan Bilien <jobi@via.ecp.fr> |
| */ |
| |
| #include <openssl/hmac.h> |
| #include <libzrtpcpp/crypto/hmac256.h> |
| |
| void hmac_sha384(uint8_t* key, uint32_t key_length, |
| uint8_t* data, int32_t data_length, |
| uint8_t* mac, uint32_t* mac_length) |
| { |
| unsigned int tmp; |
| HMAC( EVP_sha384(), key, key_length, data, data_length, mac, &tmp ); |
| *mac_length = tmp; |
| } |
| |
| void hmac_sha384(uint8_t* key, uint32_t key_length, |
| uint8_t* data_chunks[], |
| uint32_t data_chunck_length[], |
| uint8_t* mac, uint32_t* mac_length ) |
| { |
| unsigned int tmp; |
| HMAC_CTX ctx; |
| HMAC_CTX_init( &ctx ); |
| HMAC_Init_ex( &ctx, key, key_length, EVP_sha384(), NULL ); |
| while( *data_chunks ){ |
| HMAC_Update( &ctx, *data_chunks, *data_chunck_length ); |
| data_chunks ++; |
| data_chunck_length ++; |
| } |
| HMAC_Final( &ctx, mac, &tmp); |
| *mac_length = tmp; |
| HMAC_CTX_cleanup( &ctx ); |
| } |