/* SPDX-License-Identifier: GPL-2.0 */ /* * Common values for the SM4 algorithm * Copyright (C) 2018 ARM Limited or its affiliates. */ #ifndef _CRYPTO_SM4_H #define _CRYPTO_SM4_H #include <linux/types.h> #include <linux/crypto.h> #define SM4_KEY_SIZE 16 #define SM4_BLOCK_SIZE 16 #define SM4_RKEY_WORDS 32 struct crypto_sm4_ctx { u32 rkey_enc[SM4_RKEY_WORDS]; u32 rkey_dec[SM4_RKEY_WORDS]; }; int crypto_sm4_set_key(struct crypto_tfm *tfm, const u8 *in_key, unsigned int key_len); int crypto_sm4_expand_key(struct crypto_sm4_ctx *ctx, const u8 *in_key, unsigned int key_len); void crypto_sm4_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in); void crypto_sm4_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in); #endif