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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _CRYPTO_TWOFISH_H3#define _CRYPTO_TWOFISH_H4 5#include <linux/types.h>6 7#define TF_MIN_KEY_SIZE 168#define TF_MAX_KEY_SIZE 329#define TF_BLOCK_SIZE 1610 11struct crypto_tfm;12 13/* Structure for an expanded Twofish key. s contains the key-dependent14 * 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. Note16 * 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#endif26