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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2729bb42 JF |
2 | #ifndef _CRYPTO_TWOFISH_H |
3 | #define _CRYPTO_TWOFISH_H | |
4 | ||
5 | #include <linux/types.h> | |
6 | ||
7 | #define TF_MIN_KEY_SIZE 16 | |
8 | #define TF_MAX_KEY_SIZE 32 | |
9 | #define TF_BLOCK_SIZE 16 | |
10 | ||
11 | struct crypto_tfm; | |
12 | ||
13 | /* Structure for an expanded Twofish key. s contains the key-dependent | |
14 | * S-boxes composed with the MDS matrix; w contains the eight "whitening" | |
15 | * subkeys, K[0] through K[7]. k holds the remaining, "round" subkeys. Note | |
16 | * that k[i] corresponds to what the Twofish paper calls K[i+8]. */ | |
17 | struct twofish_ctx { | |
18 | u32 s[4][256], w[8], k[32]; | |
19 | }; | |
20 | ||
81559f9a JK |
21 | int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key, |
22 | unsigned int key_len, u32 *flags); | |
560c06ae | 23 | int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len); |
2729bb42 JF |
24 | |
25 | #endif |