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40 lines
1.3 KiB
40 lines
1.3 KiB
/* |
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* DES encryption/decryption |
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* Copyright (c) 2007 Reimar Doeffinger |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVUTIL_DES_H |
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#define AVUTIL_DES_H |
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#include <stdint.h> |
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#include "common.h" |
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/** |
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* \brief en- or decrypt an 64-bit block of data with DES |
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* \param in data to process. |
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* \param key key to use for en-/decryption. |
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* \param decrypt if 0 encrypt, else decrypt. |
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* \return processed data |
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* |
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* If your input data is in 8-bit blocks treat it as big-endian |
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* (use e.g. AV_RB64 and AV_WB64). |
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*/ |
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uint64_t ff_des_encdec(uint64_t in, uint64_t key, int decrypt) av_const; |
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#endif /* AVUTIL_DES_H */
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