| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | * sm2.h - SM2 asymmetric public-key algorithm |
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| 4 | * as specified by OSCCA GM/T 0003.1-2012 -- 0003.5-2012 SM2 and |
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| 5 | * described at https://tools.ietf.org/html/draft-shen-sm2-ecdsa-02 |
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| 6 | * |
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| 7 | * Copyright (c) 2020, Alibaba Group. |
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| 8 | * Written by Tianjia Zhang <tianjia.zhang@linux.alibaba.com> |
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| 9 | */ |
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| 10 | |
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| 11 | #ifndef _CRYPTO_SM2_H |
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| 12 | #define _CRYPTO_SM2_H |
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| 13 | |
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| 14 | struct shash_desc; |
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| 15 | |
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| 16 | #if IS_REACHABLE(CONFIG_CRYPTO_SM2) |
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| 17 | int sm2_compute_z_digest(struct shash_desc *desc, |
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| 18 | const void *key, unsigned int keylen, void *dgst); |
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| 19 | #else |
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| 20 | static inline int sm2_compute_z_digest(struct shash_desc *desc, |
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| 21 | const void *key, unsigned int keylen, |
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| 22 | void *dgst) |
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| 23 | { |
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| 24 | return -ENOTSUPP; |
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| 25 | } |
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| 26 | #endif |
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| 27 | |
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| 28 | #endif /* _CRYPTO_SM2_H */ |
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| 29 | |
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