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_ */ 23