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