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/* $OpenBSD: sm2_locl.h,v 1.1.1.1 2021/08/18 16:04:32 tb Exp $ */
/*
* Copyright (c) 2017, 2019 Ribose Inc
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef HEADER_SM2_LOCL_H
#define HEADER_SM2_LOCL_H
#include <openssl/ec.h>
#include <openssl/ecdsa.h>
__BEGIN_HIDDEN_DECLS
int sm2_compute_userid_digest(uint8_t *out, const EVP_MD *digest,
const uint8_t *uid, size_t uid_len, const EC_KEY *key);
/*
* SM2 signature operation. Computes ZA (user id digest) and then signs
* H(ZA || msg) using SM2
*/
ECDSA_SIG *sm2_do_sign(const EC_KEY *key, const EVP_MD *digest,
const uint8_t *uid, size_t uid_len, const uint8_t *msg, size_t msg_len);
int sm2_do_verify(const EC_KEY *key, const EVP_MD *digest,
const ECDSA_SIG *signature, const uint8_t *uid, size_t uid_len,
const uint8_t *msg, size_t msg_len);
__END_HIDDEN_DECLS
#endif
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