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76 lines
1.9 KiB
76 lines
1.9 KiB
/* |
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* Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at> |
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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_SHA_H |
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#define AVUTIL_SHA_H |
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#include <stdint.h> |
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#include "attributes.h" |
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#include "version.h" |
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/** |
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* @defgroup lavu_sha SHA |
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* @ingroup lavu_crypto |
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* @{ |
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*/ |
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#if FF_API_CONTEXT_SIZE |
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extern attribute_deprecated const int av_sha_size; |
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#endif |
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struct AVSHA; |
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/** |
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* Allocate an AVSHA context. |
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*/ |
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struct AVSHA *av_sha_alloc(void); |
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/** |
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* Initialize SHA-1 or SHA-2 hashing. |
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* |
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* @param context pointer to the function context (of size av_sha_size) |
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* @param bits number of bits in digest (SHA-1 - 160 bits, SHA-2 224 or 256 bits) |
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* @return zero if initialization succeeded, -1 otherwise |
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*/ |
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int av_sha_init(struct AVSHA* context, int bits); |
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/** |
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* Update hash value. |
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* |
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* @param context hash function context |
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* @param data input data to update hash with |
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* @param len input data length |
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*/ |
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void av_sha_update(struct AVSHA* context, const uint8_t* data, unsigned int len); |
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/** |
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* Finish hashing and output digest value. |
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* |
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* @param context hash function context |
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* @param digest buffer where output digest value is stored |
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*/ |
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void av_sha_final(struct AVSHA* context, uint8_t *digest); |
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/** |
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* @} |
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*/ |
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#endif /* AVUTIL_SHA_H */
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