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 21 extern 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 */ 26