Libav
des.h
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1 /*
2  * DES encryption/decryption
3  * Copyright (c) 2007 Reimar Doeffinger
4  *
5  * This file is part of Libav.
6  *
7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVUTIL_DES_H
23 #define AVUTIL_DES_H
24 
25 #include <stdint.h>
26 #include "version.h"
27 
34 #if FF_API_CRYPTO_CONTEXT
35 typedef struct AVDES {
36  uint64_t round_keys[3][16];
38 } AVDES;
39 #else
40 typedef struct AVDES AVDES;
41 #endif
42 
46 AVDES *av_des_alloc(void);
47 
55 int av_des_init(struct AVDES *d, const uint8_t *key, int key_bits, int decrypt);
56 
67 void av_des_crypt(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
68 
76 void av_des_mac(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count);
77 
82 #endif /* AVUTIL_DES_H */
void av_des_crypt(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt)
Encrypts / decrypts using the DES algorithm.
Definition: des.c:330
uint64_t round_keys[3][16]
Definition: des.h:36
uint8_t
#define src
Definition: vp8dsp.c:254
Libavutil version macros.
AVDES * av_des_alloc(void)
Allocate an AVDES context.
Definition: des.c:280
int av_des_init(struct AVDES *d, const uint8_t *key, int key_bits, int decrypt)
Initializes an AVDES context.
Definition: des.c:285
void av_des_mac(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count)
Calculates CBC-MAC using the DES algorithm.
Definition: des.c:336
int triple_des
Definition: des.h:37
Definition: des.h:35