1 /* $FreeBSD: src/sys/opencrypto/cast.h,v 1.2 2005/01/07 02:29:16 imp Exp $ */ 2 /* $OpenBSD: cast.h,v 1.2 2002/03/14 01:26:51 millert Exp $ */ 3 4 /*- 5 * CAST-128 in C 6 * Written by Steve Reid <sreid@sea-to-sky.net> 7 * 100% Public Domain - no warranty 8 * Released 1997.10.11 9 */ 10 11 #ifndef _CAST_H_ 12 #define _CAST_H_ 13 14 typedef struct { 15 u_int32_t xkey[32]; /* Key, after expansion */ 16 int rounds; /* Number of rounds to use, 12 or 16 */ 17 } cast_key; 18 19 void cast_setkey(cast_key * key, u_int8_t * rawkey, int keybytes); 20 void cast_encrypt(cast_key * key, u_int8_t * inblock, u_int8_t * outblock); 21 void cast_decrypt(cast_key * key, u_int8_t * inblock, u_int8_t * outblock); 22 23 #endif /* ifndef _CAST_H_ */ 24