| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Joachim Fritschi | 2729bb4 | 2006-06-20 20:37:23 +1000 | [diff] [blame] | 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 | |
| Jussi Kivilinna | 81559f9 | 2011-10-18 13:33:02 +0300 | [diff] [blame] | 21 | int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key, |
| Eric Biggers | 674f368 | 2019-12-30 21:19:36 -0600 | [diff] [blame] | 22 | unsigned int key_len); |
| Herbert Xu | 560c06a | 2006-08-13 14:16:39 +1000 | [diff] [blame] | 23 | int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len); |
| Joachim Fritschi | 2729bb4 | 2006-06-20 20:37:23 +1000 | [diff] [blame] | 24 | |
| 25 | #endif |