FFmpeg  4.0
ripemd.h
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1 /*
2  * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
3  * Copyright (C) 2013 James Almer <jamrial@gmail.com>
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 /**
23  * @file
24  * @ingroup lavu_ripemd
25  * Public header for RIPEMD hash function implementation.
26  */
27 
28 #ifndef AVUTIL_RIPEMD_H
29 #define AVUTIL_RIPEMD_H
30 
31 #include <stdint.h>
32 
33 #include "attributes.h"
34 #include "version.h"
35 
36 /**
37  * @defgroup lavu_ripemd RIPEMD
38  * @ingroup lavu_hash
39  * RIPEMD hash function implementation.
40  *
41  * @{
42  */
43 
44 extern const int av_ripemd_size;
45 
46 struct AVRIPEMD;
47 
48 /**
49  * Allocate an AVRIPEMD context.
50  */
51 struct AVRIPEMD *av_ripemd_alloc(void);
52 
53 /**
54  * Initialize RIPEMD hashing.
55  *
56  * @param context pointer to the function context (of size av_ripemd_size)
57  * @param bits number of bits in digest (128, 160, 256 or 320 bits)
58  * @return zero if initialization succeeded, -1 otherwise
59  */
60 int av_ripemd_init(struct AVRIPEMD* context, int bits);
61 
62 /**
63  * Update hash value.
64  *
65  * @param context hash function context
66  * @param data input data to update hash with
67  * @param len input data length
68  */
69 #if FF_API_CRYPTO_SIZE_T
70 void av_ripemd_update(struct AVRIPEMD* context, const uint8_t* data, unsigned int len);
71 #else
72 void av_ripemd_update(struct AVRIPEMD* context, const uint8_t* data, size_t len);
73 #endif
74 
75 /**
76  * Finish hashing and output digest value.
77  *
78  * @param context hash function context
79  * @param digest buffer where output digest value is stored
80  */
81 void av_ripemd_final(struct AVRIPEMD* context, uint8_t *digest);
82 
83 /**
84  * @}
85  */
86 
87 #endif /* AVUTIL_RIPEMD_H */
void av_ripemd_update(struct AVRIPEMD *context, const uint8_t *data, unsigned int len)
Update hash value.
Definition: ripemd.c:514
Macro definitions for various function/variable attributes.
void av_ripemd_final(struct AVRIPEMD *context, uint8_t *digest)
Finish hashing and output digest value.
Definition: ripemd.c:544
uint8_t
const char data[16]
Definition: mxf.c:90
Libavutil version macros.
struct AVRIPEMD * av_ripemd_alloc(void)
Allocate an AVRIPEMD context.
Definition: ripemd.c:43
hash context
Definition: ripemd.c:32
int av_ripemd_init(struct AVRIPEMD *context, int bits)
Initialize RIPEMD hashing.
Definition: ripemd.c:463
int len
const int av_ripemd_size
Definition: ripemd.c:41