1*b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2270b0c6bSJohannes Goetzfried #ifndef _CRYPTO_CAST5_H 3270b0c6bSJohannes Goetzfried #define _CRYPTO_CAST5_H 4270b0c6bSJohannes Goetzfried 5270b0c6bSJohannes Goetzfried #include <linux/types.h> 6270b0c6bSJohannes Goetzfried #include <linux/crypto.h> 7044ab525SJussi Kivilinna #include <crypto/cast_common.h> 8270b0c6bSJohannes Goetzfried 9270b0c6bSJohannes Goetzfried #define CAST5_BLOCK_SIZE 8 10270b0c6bSJohannes Goetzfried #define CAST5_MIN_KEY_SIZE 5 11270b0c6bSJohannes Goetzfried #define CAST5_MAX_KEY_SIZE 16 12270b0c6bSJohannes Goetzfried 13270b0c6bSJohannes Goetzfried struct cast5_ctx { 14270b0c6bSJohannes Goetzfried u32 Km[16]; 15270b0c6bSJohannes Goetzfried u8 Kr[16]; 16270b0c6bSJohannes Goetzfried int rr; /* rr ? rounds = 12 : rounds = 16; (rfc 2144) */ 17270b0c6bSJohannes Goetzfried }; 18270b0c6bSJohannes Goetzfried 19270b0c6bSJohannes Goetzfried int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen); 20270b0c6bSJohannes Goetzfried 21270b0c6bSJohannes Goetzfried void __cast5_encrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src); 22270b0c6bSJohannes Goetzfried void __cast5_decrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src); 23270b0c6bSJohannes Goetzfried 24270b0c6bSJohannes Goetzfried #endif 25