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
14struct shash_desc;
15
16#if IS_REACHABLE(CONFIG_CRYPTO_SM2)
17int sm2_compute_z_digest(struct shash_desc *desc,
18			 const void *key, unsigned int keylen, void *dgst);
19#else
20static 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 */

 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
14struct shash_desc;
15
16#if IS_REACHABLE(CONFIG_CRYPTO_SM2)
17int sm2_compute_z_digest(struct shash_desc *desc,
18			 const void *key, unsigned int keylen, void *dgst);
19#else
20static 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 */