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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 | |
20 | int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len); |
21 | |
22 | #endif |
23 |
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