1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _CRYPTO_CAST6_H 3 #define _CRYPTO_CAST6_H 4 5 #include <linux/types.h> 6 #include <linux/crypto.h> 7 #include <crypto/cast_common.h> 8 9 #define CAST6_BLOCK_SIZE 16 10 #define CAST6_MIN_KEY_SIZE 16 11 #define CAST6_MAX_KEY_SIZE 32 12 13 struct cast6_ctx { 14 u32 Km[12][4]; 15 u8 Kr[12][4]; 16 }; 17 18 int __cast6_setkey(struct cast6_ctx *ctx, const u8 *key, unsigned int keylen); 19 int cast6_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen); 20 21 void __cast6_encrypt(const void *ctx, u8 *dst, const u8 *src); 22 void __cast6_decrypt(const void *ctx, u8 *dst, const u8 *src); 23 24 #endif 25