include/crypto/sm2.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * sm2.h - SM2 asymmetric public-key algorithm
0004  * as specified by OSCCA GM/T 0003.1-2012 -- 0003.5-2012 SM2 and
0005  * described at https://tools.ietf.org/html/draft-shen-sm2-ecdsa-02
0006  *
0007  * Copyright (c) 2020, Alibaba Group.
0008  * Written by Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
0009  */
0010
0011 #ifndef _CRYPTO_SM2_H
0012 #define _CRYPTO_SM2_H
0013
0014 #include <crypto/sm3.h>
0015 #include <crypto/akcipher.h>
0016
0017 /* The default user id as specified in GM/T 0009-2012 */
0018 #define SM2_DEFAULT_USERID "1234567812345678"
0019 #define SM2_DEFAULT_USERID_LEN 16
0020
0021 extern int sm2_compute_z_digest(struct crypto_akcipher *tfm,
0022             const unsigned char *id, size_t id_len,
0023             unsigned char dgst[SM3_DIGEST_SIZE]);
0024
0025 #endif /* _CRYPTO_SM2_H */