1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * sm2.h - SM2 asymmetric public-key algorithm
 4 * as specified by OSCCA GM/T 0003.1-2012 -- 0003.5-2012 SM2 and
 5 * described at https://tools.ietf.org/html/draft-shen-sm2-ecdsa-02
 6 *
 7 * Copyright (c) 2020, Alibaba Group.
 8 * Written by Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
 9 */
10
11#ifndef _CRYPTO_SM2_H
12#define _CRYPTO_SM2_H
13
14#include <crypto/sm3.h>
15#include <crypto/akcipher.h>
16
17/* The default user id as specified in GM/T 0009-2012 */
18#define SM2_DEFAULT_USERID "1234567812345678"
19#define SM2_DEFAULT_USERID_LEN 16
20
21extern int sm2_compute_z_digest(struct crypto_akcipher *tfm,
22			const unsigned char *id, size_t id_len,
23			unsigned char dgst[SM3_DIGEST_SIZE]);
24
25#endif /* _CRYPTO_SM2_H */