1 #ifndef _CRYPTO_CAST5_H 2 #define _CRYPTO_CAST5_H 3 4 #include <linux/types.h> 5 #include <linux/crypto.h> 6 #include <crypto/cast_common.h> 7 8 #define CAST5_BLOCK_SIZE 8 9 #define CAST5_MIN_KEY_SIZE 5 10 #define CAST5_MAX_KEY_SIZE 16 11 12 struct cast5_ctx { 13 u32 Km[16]; 14 u8 Kr[16]; 15 int rr; /* rr ? rounds = 12 : rounds = 16; (rfc 2144) */ 16 }; 17 18 int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen); 19 20 void __cast5_encrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src); 21 void __cast5_decrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src); 22 23 #endif 24