| Pascal Brand | c639ac8 | 2015-07-02 08:53:34 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2014, STMicroelectronics International N.V. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| 9 | * this list of conditions and the following disclaimer. |
| 10 | * |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 12 | * this list of conditions and the following disclaimer in the documentation |
| 13 | * and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 16 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| 19 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 20 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 21 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 24 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 25 | * POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #ifndef AES_IMPL_H |
| 29 | #define AES_IMPL_H |
| 30 | |
| 31 | int rijndaelSetupEncrypt(unsigned long *rk, const unsigned char *key, |
| 32 | int keybits); |
| 33 | |
| 34 | int rijndaelSetupDecrypt(unsigned long *rk, const unsigned char *key, |
| 35 | int keybits); |
| 36 | |
| 37 | void rijndaelEncrypt(const unsigned long *rk, int nrounds, |
| 38 | const unsigned char plaintext[16], |
| 39 | unsigned char ciphertext[16]); |
| 40 | |
| 41 | void rijndaelDecrypt(const unsigned long *rk, int nrounds, |
| 42 | const unsigned char ciphertext[16], |
| 43 | unsigned char plaintext[16]); |
| 44 | |
| 45 | #define AES_BLOCK_SIZE 128 |
| 46 | |
| 47 | #define AES_128 128 |
| 48 | #define AES_192 192 |
| 49 | #define AES_256 256 |
| 50 | |
| 51 | #define KEYLENGTH(keybits) ((keybits)/8) |
| 52 | #define RKLENGTH(keybits) ((keybits)/8+28) |
| 53 | #define NROUNDS(keybits) ((keybits)/32+6) |
| 54 | |
| 55 | #endif |