xtea.h
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1 /*
2  * A 32-bit implementation of the XTEA algorithm
3  *
4  * This file is part of Libav.
5  *
6  * Libav is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * Libav is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with Libav; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVUTIL_XTEA_H
22 #define AVUTIL_XTEA_H
23 
24 #include <stdint.h>
25 
32 typedef struct AVXTEA {
33  uint32_t key[16];
34 } AVXTEA;
35 
42 void av_xtea_init(struct AVXTEA *ctx, const uint8_t key[16]);
43 
54 void av_xtea_crypt(struct AVXTEA *ctx, uint8_t *dst, const uint8_t *src,
55  int count, uint8_t *iv, int decrypt);
56 
61 #endif /* AVUTIL_XTEA_H */
uint32_t key[16]
Definition: xtea.h:33
uint8_t
void av_xtea_crypt(struct AVXTEA *ctx, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt)
Encrypt or decrypt a buffer using a previously initialized context.
Definition: xtea.c:74
void av_xtea_init(struct AVXTEA *ctx, const uint8_t key[16])
Initialize an AVXTEA context.
Definition: xtea.c:30
struct AVXTEA AVXTEA
Definition: xtea.h:32