| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 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 | |
| 21 | int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key, |
| 22 | unsigned int key_len, u32 *flags); |
| 23 | int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len); |
| 24 | |
| 25 | #endif |