25 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _CRYPTO_CAST5_H3#define _CRYPTO_CAST5_H4 5#include <linux/types.h>6#include <linux/crypto.h>7#include <crypto/cast_common.h>8 9#define CAST5_BLOCK_SIZE 810#define CAST5_MIN_KEY_SIZE 511#define CAST5_MAX_KEY_SIZE 1612 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#endif25