/* * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at> * Copyright (C) 2013 James Almer <jamrial@gmail.com> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * @ingroup lavu_ripemd * Public header for RIPEMD hash function implementation. */ #ifndef AVUTIL_RIPEMD_H #define AVUTIL_RIPEMD_H #include <stddef.h> #include <stdint.h> #include "attributes.h" /** * @defgroup lavu_ripemd RIPEMD * @ingroup lavu_hash * RIPEMD hash function implementation. * * @{ */ extern const int av_ripemd_size; struct AVRIPEMD; /** * Allocate an AVRIPEMD context. */ struct AVRIPEMD *av_ripemd_alloc(void); /** * Initialize RIPEMD hashing. * * @param context pointer to the function context (of size av_ripemd_size) * @param bits number of bits in digest (128, 160, 256 or 320 bits) * @return zero if initialization succeeded, -1 otherwise */ int av_ripemd_init(struct AVRIPEMD* context, int bits); /** * Update hash value. * * @param context hash function context * @param data input data to update hash with * @param len input data length */ void av_ripemd_update(struct AVRIPEMD* context, const uint8_t* data, size_t len); /** * Finish hashing and output digest value. * * @param context hash function context * @param digest buffer where output digest value is stored */ void av_ripemd_final(struct AVRIPEMD* context, uint8_t *digest); /** * @} */ #endif /* AVUTIL_RIPEMD_H */