/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* sm2.h - SM2 asymmetric public-key algorithm
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* as specified by OSCCA GM/T 0003.1-2012 -- 0003.5-2012 SM2 and
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* described at https://tools.ietf.org/html/draft-shen-sm2-ecdsa-02
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*
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* Copyright (c) 2020, Alibaba Group.
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* Written by Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
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*/
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#ifndef _CRYPTO_SM2_H
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#define _CRYPTO_SM2_H
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#include <crypto/sm3.h>
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#include <crypto/akcipher.h>
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/* The default user id as specified in GM/T 0009-2012 */
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#define SM2_DEFAULT_USERID "1234567812345678"
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#define SM2_DEFAULT_USERID_LEN 16
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extern int sm2_compute_z_digest(struct crypto_akcipher *tfm,
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const unsigned char *id, size_t id_len,
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unsigned char dgst[SM3_DIGEST_SIZE]);
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#endif /* _CRYPTO_SM2_H */
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