twofish.h (743B)
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 11struct 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]. */ 17struct twofish_ctx { 18 u32 s[4][256], w[8], k[32]; 19}; 20 21int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key, 22 unsigned int key_len); 23int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len); 24 25#endif