Alexandre Lision | 51140e1 | 2013-12-02 10:54:09 -0500 | [diff] [blame] | 1 | /* |
Alexandre Lision | 7fd5d3d | 2013-12-04 13:06:40 -0500 | [diff] [blame] | 2 | Copyright (C) 2006-2013 Werner Dittmann |
Alexandre Lision | 51140e1 | 2013-12-02 10:54:09 -0500 | [diff] [blame] | 3 | |
| 4 | This program is free software: you can redistribute it and/or modify |
Alexandre Lision | 7fd5d3d | 2013-12-04 13:06:40 -0500 | [diff] [blame] | 5 | it under the terms of the GNU Lesser General Public License as published by |
Alexandre Lision | 51140e1 | 2013-12-02 10:54:09 -0500 | [diff] [blame] | 6 | the Free Software Foundation, either version 3 of the License, or |
| 7 | (at your option) any later version. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 16 | */ |
| 17 | |
| 18 | /** |
| 19 | * @author Erik Eliasson <eliasson@it.kth.se> |
| 20 | * Johan Bilien <jobi@via.ecp.fr> |
| 21 | * Werner Dittmann <Werner.Dittmann@t-online.de> |
| 22 | */ |
| 23 | |
| 24 | #include <gcrypt.h> |
Alexandre Lision | 7fd5d3d | 2013-12-04 13:06:40 -0500 | [diff] [blame] | 25 | #include <crypto/sha256.h> |
Alexandre Lision | 51140e1 | 2013-12-02 10:54:09 -0500 | [diff] [blame] | 26 | |
| 27 | void sha256(unsigned char* data, unsigned int dataLength, |
| 28 | unsigned char* mac) |
| 29 | { |
| 30 | gcry_md_hash_buffer(GCRY_MD_SHA256, mac, data, dataLength); |
| 31 | } |
| 32 | |
| 33 | void sha256(unsigned char* dataChunks[], |
| 34 | unsigned int dataChunkLength[], |
| 35 | unsigned char* mac) |
| 36 | { |
| 37 | gcry_md_hd_t hd; |
| 38 | gcry_error_t err = 0; |
| 39 | |
| 40 | err = gcry_md_open(&hd, GCRY_MD_SHA256, 0); |
| 41 | while (*dataChunks) { |
| 42 | gcry_md_write (hd, *dataChunks, (uint32_t)(*dataChunkLength)); |
| 43 | dataChunks++; |
| 44 | dataChunkLength++; |
| 45 | } |
| 46 | uint8_t* p = gcry_md_read (hd, GCRY_MD_SHA256); |
| 47 | memcpy(mac, p, SHA256_DIGEST_LENGTH); |
| 48 | gcry_md_close (hd); |
| 49 | } |
| 50 | |
| 51 | void* createSha256Context() |
| 52 | { |
| 53 | gcry_error_t err = 0; |
| 54 | gcry_md_hd_t hd; |
| 55 | |
| 56 | err = gcry_md_open(&hd, GCRY_MD_SHA256, 0); |
| 57 | return (void*)hd; |
| 58 | } |
| 59 | |
| 60 | void closeSha256Context(void* ctx, unsigned char* digest) |
| 61 | { |
| 62 | gcry_md_hd_t hd = (gcry_md_hd_t)ctx; |
| 63 | |
| 64 | if (digest != NULL) { |
| 65 | uint8_t* p = gcry_md_read (hd, GCRY_MD_SHA256); |
| 66 | memcpy(digest, p, SHA256_DIGEST_LENGTH); |
| 67 | } |
| 68 | gcry_md_close (hd); |
| 69 | } |
| 70 | |
| 71 | void sha256Ctx(void* ctx, unsigned char* data, |
| 72 | unsigned int dataLength) |
| 73 | { |
| 74 | gcry_md_hd_t hd = (gcry_md_hd_t)ctx; |
| 75 | |
| 76 | gcry_md_write (hd, data, dataLength); |
| 77 | } |
| 78 | |
| 79 | void sha256Ctx(void* ctx, unsigned char* dataChunks[], |
| 80 | unsigned int dataChunkLength[]) |
| 81 | { |
| 82 | gcry_md_hd_t hd = (gcry_md_hd_t)ctx; |
| 83 | |
| 84 | while (*dataChunks) { |
| 85 | gcry_md_write (hd, *dataChunks, (uint32_t)(*dataChunkLength)); |
| 86 | dataChunks++; |
| 87 | dataChunkLength++; |
| 88 | } |
| 89 | } |