[linux-block.git] / include / crypto / sm4.h

/* 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
Commit	Line	Data
747c8ce4 GBY	1	/* SPDX-License-Identifier: GPL-2.0 */
	2
	3	/*
	4	* Common values for the SM4 algorithm
	5	* Copyright (C) 2018 ARM Limited or its affiliates.
	6	*/
	7
	8	#ifndef _CRYPTO_SM4_H
	9	#define _CRYPTO_SM4_H
	10
	11	#include <linux/types.h>
	12	#include <linux/crypto.h>
	13
	14	#define SM4_KEY_SIZE 16
	15	#define SM4_BLOCK_SIZE 16
	16	#define SM4_RKEY_WORDS 32
	17
	18	struct crypto_sm4_ctx {
	19	u32 rkey_enc[SM4_RKEY_WORDS];
	20	u32 rkey_dec[SM4_RKEY_WORDS];
	21	};
	22
	23	int crypto_sm4_set_key(struct crypto_tfm tfm, const u8 in_key,
	24	unsigned int key_len);
	25	int crypto_sm4_expand_key(struct crypto_sm4_ctx ctx, const u8 in_key,
	26	unsigned int key_len);
	27
8da02bf1 AB	28	void crypto_sm4_encrypt(struct crypto_tfm tfm, u8 out, const u8 *in);
	29	void crypto_sm4_decrypt(struct crypto_tfm tfm, u8 out, const u8 *in);
	30
747c8ce4	31	#endif