FFmpeg  4.4.4
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 <stddef.h>
32 #include <stdint.h>
33 
34 #include "attributes.h"
35 #include "version.h"
36 
37 /**
38  * @defgroup lavu_ripemd RIPEMD
39  * @ingroup lavu_hash
40  * RIPEMD hash function implementation.
41  *
42  * @{
43  */
44 
45 extern const int av_ripemd_size;
46 
47 struct AVRIPEMD;
48 
49 /**
50  * Allocate an AVRIPEMD context.
51  */
52 struct AVRIPEMD *av_ripemd_alloc(void);
53 
54 /**
55  * Initialize RIPEMD hashing.
56  *
57  * @param context pointer to the function context (of size av_ripemd_size)
58  * @param bits number of bits in digest (128, 160, 256 or 320 bits)
59  * @return zero if initialization succeeded, -1 otherwise
60  */
61 int av_ripemd_init(struct AVRIPEMD* context, int bits);
62 
63 /**
64  * Update hash value.
65  *
66  * @param context hash function context
67  * @param data input data to update hash with
68  * @param len input data length
69  */
70 #if FF_API_CRYPTO_SIZE_T
71 void av_ripemd_update(struct AVRIPEMD* context, const uint8_t* data, unsigned int len);
72 #else
73 void av_ripemd_update(struct AVRIPEMD* context, const uint8_t* data, size_t len);
74 #endif
75 
76 /**
77  * Finish hashing and output digest value.
78  *
79  * @param context hash function context
80  * @param digest buffer where output digest value is stored
81  */
82 void av_ripemd_final(struct AVRIPEMD* context, uint8_t *digest);
83 
84 /**
85  * @}
86  */
87 
88 #endif /* AVUTIL_RIPEMD_H */
Macro definitions for various function/variable attributes.
uint8_t
void av_ripemd_final(struct AVRIPEMD *context, uint8_t *digest)
Finish hashing and output digest value.
Definition: ripemd.c:545
int av_ripemd_init(struct AVRIPEMD *context, int bits)
Initialize RIPEMD hashing.
Definition: ripemd.c:464
void av_ripemd_update(struct AVRIPEMD *context, const uint8_t *data, unsigned int len)
Update hash value.
Definition: ripemd.c:515
struct AVRIPEMD * av_ripemd_alloc(void)
Allocate an AVRIPEMD context.
Definition: ripemd.c:44
const int av_ripemd_size
Definition: ripemd.c:42
swscale version macros
const char data[16]
Definition: mxf.c:142
hash context
Definition: ripemd.c:33
int len
uint8_t bits
Definition: vp3data.h:141