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