/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _CRYPTO_TWOFISH_H #define _CRYPTO_TWOFISH_H #include <linux/types.h> #define TF_MIN_KEY_SIZE 16 #define TF_MAX_KEY_SIZE 32 #define TF_BLOCK_SIZE 16 struct crypto_tfm; /* Structure for an expanded Twofish key. s contains the key-dependent * S-boxes composed with the MDS matrix; w contains the eight "whitening" * subkeys, K[0] through K[7]. k holds the remaining, "round" subkeys. Note * that k[i] corresponds to what the Twofish paper calls K[i+8]. */ struct twofish_ctx { u32 s[4][256], w[8], k[32]; }; int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key, unsigned int key_len); int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len); #endif