1 /* $OpenBSD: cast.h,v 1.2 2002/03/14 01:26:51 millert Exp $ */
2
3 /*
4 * CAST-128 in C
5 * Written by Steve Reid <sreid@sea-to-sky.net>
6 * 100% Public Domain - no warranty
7 * Released 1997.10.11
8 */
9
10 #ifndef _CAST_H_
11 #define _CAST_H_
12
13 typedef struct {
14 u_int32_t xkey[32]; /* Key, after expansion */
15 int rounds; /* Number of rounds to use, 12 or 16 */
16 } cast_key;
17
18 void cast_setkey(cast_key * key, u_int8_t * rawkey, int keybytes);
19 void cast_encrypt(cast_key * key, u_int8_t * inblock, u_int8_t * outblock);
20 void cast_decrypt(cast_key * key, u_int8_t * inblock, u_int8_t * outblock);
21
22 #endif /* ifndef _CAST_H_ */