1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _CRYPTO_CAST5_H 3*4882a593Smuzhiyun #define _CRYPTO_CAST5_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/types.h> 6*4882a593Smuzhiyun #include <linux/crypto.h> 7*4882a593Smuzhiyun #include <crypto/cast_common.h> 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #define CAST5_BLOCK_SIZE 8 10*4882a593Smuzhiyun #define CAST5_MIN_KEY_SIZE 5 11*4882a593Smuzhiyun #define CAST5_MAX_KEY_SIZE 16 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun struct cast5_ctx { 14*4882a593Smuzhiyun u32 Km[16]; 15*4882a593Smuzhiyun u8 Kr[16]; 16*4882a593Smuzhiyun int rr; /* rr ? rounds = 12 : rounds = 16; (rfc 2144) */ 17*4882a593Smuzhiyun }; 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen); 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun void __cast5_encrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src); 22*4882a593Smuzhiyun void __cast5_decrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src); 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #endif 25