projects / libav.git / blame
| Commit | Line | Data |
|---|---|---|
| 2e9ad69a RD |
1 | /* |
| 2 | * DES encryption/decryption | |
| 3 | * Copyright (c) 2007 Reimar Doeffinger | |
| 4 | * | |
| 5 | * This file is part of FFmpeg. | |
| 6 | * | |
| 7 | * FFmpeg is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU Lesser General Public | |
| 9 | * License as published by the Free Software Foundation; either | |
| 10 | * version 2.1 of the License, or (at your option) any later version. | |
| 11 | * | |
| 12 | * FFmpeg is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | * Lesser General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU Lesser General Public | |
| 18 | * License along with FFmpeg; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 20 | */ | |
| 21 | ||
| 22 | #ifndef FFMPEG_DES_H | |
| 23 | #define FFMPEG_DES_H | |
| 24 | ||
| f0a838e5 DB |
25 | #include <inttypes.h> |
| 26 | ||
| 46fb896b RD |
27 | /** |
| 28 | * \brief en- or decrypt an 64-bit block of data with DES | |
| 29 | * \param in data to process. | |
| 30 | * \param key key to use for en-/decryption. | |
| 31 | * \param decrypt if 0 encrypt, else decrypt. | |
| 32 | * \return processed data | |
| 33 | * | |
| 34 | * If your input data is in 8-bit blocks treat it as big-endian | |
| 35 | * (use e.g. AV_RB64 and AV_WB64). | |
| 36 | */ | |
| 2e9ad69a RD |
37 | uint64_t ff_des_encdec(uint64_t in, uint64_t key, int decrypt); |
| 38 | ||
| 1b1ab198 | 39 | #endif /* FFMPEG_DES_H */ |