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 struct shash_desc;
15
16 #if IS_REACHABLE(CONFIG_CRYPTO_SM2)
17 int sm2_compute_z_digest(struct shash_desc *desc,
18 const void *key, unsigned int keylen, void *dgst);
19 #else
sm2_compute_z_digest(struct shash_desc * desc,const void * key,unsigned int keylen,void * dgst)20 static inline int sm2_compute_z_digest(struct shash_desc *desc,
21 const void *key, unsigned int keylen,
22 void *dgst)
23 {
24 return -ENOTSUPP;
25 }
26 #endif
27
28 #endif /* _CRYPTO_SM2_H */
29