| /* |
| * 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_sha512 |
| * Public header for SHA-512 implementation. |
| */ |
| |
| #ifndef AVUTIL_SHA512_H |
| #define AVUTIL_SHA512_H |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include "attributes.h" |
| #include "version.h" |
| |
| /** |
| * @defgroup lavu_sha512 SHA-512 |
| * @ingroup lavu_hash |
| * SHA-512 (Secure Hash Algorithm) hash function implementations. |
| * |
| * This module supports the following SHA-2 hash functions: |
| * |
| * - SHA-512/224: 224 bits |
| * - SHA-512/256: 256 bits |
| * - SHA-384: 384 bits |
| * - SHA-512: 512 bits |
| * |
| * @see For SHA-1, SHA-256, and variants thereof, see @ref lavu_sha. |
| * |
| * @{ |
| */ |
| |
| extern const int av_sha512_size; |
| |
| struct AVSHA512; |
| |
| /** |
| * Allocate an AVSHA512 context. |
| */ |
| struct AVSHA512 *av_sha512_alloc(void); |
| |
| /** |
| * Initialize SHA-2 512 hashing. |
| * |
| * @param context pointer to the function context (of size av_sha512_size) |
| * @param bits number of bits in digest (224, 256, 384 or 512 bits) |
| * @return zero if initialization succeeded, -1 otherwise |
| */ |
| int av_sha512_init(struct AVSHA512* context, int bits); |
| |
| /** |
| * Update hash value. |
| * |
| * @param context hash function context |
| * @param data input data to update hash with |
| * @param len input data length |
| */ |
| #if FF_API_CRYPTO_SIZE_T |
| void av_sha512_update(struct AVSHA512* context, const uint8_t* data, unsigned int len); |
| #else |
| void av_sha512_update(struct AVSHA512* context, const uint8_t* data, size_t len); |
| #endif |
| |
| /** |
| * Finish hashing and output digest value. |
| * |
| * @param context hash function context |
| * @param digest buffer where output digest value is stored |
| */ |
| void av_sha512_final(struct AVSHA512* context, uint8_t *digest); |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* AVUTIL_SHA512_H */ |
