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
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