projects / proxmark3-svn / blame
| Commit | Line | Data |
|---|---|---|
| ae3340a0 OM |
1 | //----------------------------------------------------------------------------- |
| 2 | // Copyright (C) 2018 Merlok | |
| 3 | // | |
| 4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
| 5 | // at your option, any later version. See the LICENSE.txt file for the text of | |
| 6 | // the license. | |
| 7 | //----------------------------------------------------------------------------- | |
| 8 | // crypto commands | |
| 9 | //----------------------------------------------------------------------------- | |
| 10 | ||
| 11 | #include "polarssl/libpcrypto.h" | |
| 12 | #include <polarssl/aes.h> | |
| 13 | ||
| 14 | int aes_encode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length){ | |
| 15 | uint8_t iiv[16] = {0}; | |
| 16 | if (iv) | |
| 17 | memcpy(iiv, iv, 16); | |
| 18 | ||
| 19 | aes_context aes; | |
| 20 | aes_init(&aes); | |
| 21 | if (aes_setkey_enc(&aes, key, 128)) | |
| 22 | return 1; | |
| 23 | if (aes_crypt_cbc(&aes, AES_ENCRYPT, length, iiv, input, output)) | |
| 24 | return 2; | |
| 25 | aes_free(&aes); | |
| 26 | ||
| 27 | return 0; | |
| 28 | } | |
| 29 | ||
| 30 | int aes_decode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length){ | |
| 31 | uint8_t iiv[16] = {0}; | |
| 32 | if (iv) | |
| 33 | memcpy(iiv, iv, 16); | |
| 34 | ||
| 35 | aes_context aes; | |
| 36 | aes_init(&aes); | |
| 37 | if (aes_setkey_dec(&aes, key, 128)) | |
| 38 | return 1; | |
| 39 | if (aes_crypt_cbc(&aes, AES_DECRYPT, length, iiv, input, output)) | |
| 40 | return 2; | |
| 41 | aes_free(&aes); | |
| 42 | ||
| 43 | return 0; | |
| 44 | } |