| /* |
| 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 |
| */ |
| |
| /* |
| * Authors: Erik Eliasson <eliasson@it.kth.se> |
| * Johan Bilien <jobi@via.ecp.fr> |
| */ |
| #include <gcrypt.h> |
| |
| #include <crypto/hmac.h> |
| #include <stdio.h> |
| |
| void hmac_sha1(uint8_t* key, int32_t keyLength, |
| const uint8_t* data, int32_t dataLength, |
| uint8_t* mac, int32_t* macLength) |
| { |
| gcry_md_hd_t hd; |
| |
| gcry_md_open(&hd, GCRY_MD_SHA1, GCRY_MD_FLAG_HMAC); |
| gcry_md_setkey(hd, key, keyLength); |
| |
| gcry_md_write (hd, data, dataLength); |
| |
| uint8_t* p = gcry_md_read (hd, GCRY_MD_SHA1); |
| memcpy(mac, p, SHA1_DIGEST_LENGTH); |
| if (macLength != NULL) { |
| *macLength = SHA1_DIGEST_LENGTH; |
| } |
| gcry_md_close (hd); |
| } |
| |
| void hmac_sha1( uint8_t* key, int32_t keyLength, |
| const uint8_t* dataChunks[], |
| uint32_t dataChunkLength[], |
| uint8_t* mac, int32_t* macLength ) |
| { |
| gcry_md_hd_t hd; |
| |
| gcry_md_open(&hd, GCRY_MD_SHA1, GCRY_MD_FLAG_HMAC); |
| gcry_md_setkey(hd, key, keyLength); |
| |
| while (*dataChunks) { |
| gcry_md_write (hd, *dataChunks, (uint32_t)(*dataChunkLength)); |
| dataChunks++; |
| dataChunkLength++; |
| } |
| uint8_t* p = gcry_md_read (hd, GCRY_MD_SHA1); |
| memcpy(mac, p, SHA1_DIGEST_LENGTH); |
| if (macLength != NULL) { |
| *macLength = SHA1_DIGEST_LENGTH; |
| } |
| gcry_md_close (hd); |
| } |
| |
| void* createSha1HmacContext(uint8_t* key, int32_t key_length) |
| { |
| gcry_md_hd_t ctx; |
| |
| gcry_md_open(&ctx, GCRY_MD_SHA1, GCRY_MD_FLAG_HMAC); |
| gcry_md_setkey(ctx, key, key_length); |
| return ctx; |
| } |
| |
| void hmacSha1Ctx(void* ctx, const uint8_t* data, uint32_t data_length, |
| uint8_t* mac, int32_t* mac_length) |
| { |
| gcry_md_hd_t pctx = (gcry_md_hd_t)ctx; |
| |
| gcry_md_reset(pctx); |
| |
| gcry_md_write (pctx, data, data_length); |
| |
| uint8_t* p = gcry_md_read (pctx, GCRY_MD_SHA1); |
| memcpy(mac, p, SHA1_DIGEST_LENGTH); |
| if (mac_length != NULL) { |
| *mac_length = SHA1_DIGEST_LENGTH; |
| } |
| } |
| |
| void hmacSha1Ctx(void* ctx, const uint8_t* data[], uint32_t data_length[], |
| uint8_t* mac, int32_t* mac_length ) |
| { |
| gcry_md_hd_t pctx = (gcry_md_hd_t)ctx; |
| |
| gcry_md_reset (pctx); |
| while (*data) { |
| gcry_md_write (pctx, *data, (uint32_t)(*data_length)); |
| data++; |
| data_length++; |
| } |
| uint8_t* p = gcry_md_read (pctx, GCRY_MD_SHA1); |
| memcpy(mac, p, SHA1_DIGEST_LENGTH); |
| if (mac_length != NULL) { |
| *mac_length = SHA1_DIGEST_LENGTH; |
| } |
| } |
| |
| void freeSha1HmacContext(void* ctx) |
| { |
| gcry_md_hd_t pctx = (gcry_md_hd_t)ctx; |
| gcry_md_close (pctx); |
| } |