sm2.c File Reference

SM2 signature algorithm. More...

#include "core/crypto.h"
#include "hash/hash_algorithms.h"
#include "ecc/sm2.h"
#include "debug.h"

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Functions
error_t	sm2GenerateSignature (const PrngAlgo *prngAlgo, void *prngContext, const EcDomainParameters *params, const EcPrivateKey *privateKey, const HashAlgo *hashAlgo, const char_t *id, size_t idLen, const void *message, size_t messageLen, EcdsaSignature *signature)
	SM2 signature generation. More...
error_t	sm2VerifySignature (const EcDomainParameters *params, const EcPublicKey *publicKey, const HashAlgo *hashAlgo, const char_t *id, size_t idLen, const void *message, size_t messageLen, const EcdsaSignature *signature)
	SM2 signature verification. More...
error_t	sm2ComputeZa (const HashAlgo *hashAlgo, HashContext *hashContext, const EcDomainParameters *params, const EcPublicKey *pa, const char_t *ida, size_t idaLen, uint8_t *za)
	Calculate ZA. More...

Variables
const uint8_t	SM2_WITH_SM3_OID [8] = {0x2A, 0x81, 0x1C, 0xCF, 0x55, 0x01, 0x83, 0x75}

Detailed Description

SM2 signature algorithm.

License

SPDX-License-Identifier: GPL-2.0-or-later

Copyright (C) 2010-2024 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneCRYPTO Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author

Oryx Embedded SARL (www.oryx-embedded.com)

Version

2.4.4

Definition in file sm2.c.

Macro Definition Documentation

TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 32 of file sm2.c.

Function Documentation

sm2ComputeZa()

error_t sm2ComputeZa	(	const HashAlgo *	hashAlgo,
		HashContext *	hashContext,
		const EcDomainParameters *	params,
		const EcPublicKey *	pa,
		const char_t *	ida,
		size_t	idaLen,
		uint8_t *	za
	)

Calculate ZA.

Parameters

[in]	hashAlgo	Hash function
[in]	hashContext	Hash function context
[in]	params	EC domain parameters
[in]	pa	Public key of user A
[in]	ida	Distinguishing identifier of user A
[in]	idaLen	Length of the identifier
[out]	za	Hash value of the distinguishing identifier of user A

Definition at line 368 of file sm2.c.

sm2GenerateSignature()

error_t sm2GenerateSignature	(	const PrngAlgo *	prngAlgo,
		void *	prngContext,
		const EcDomainParameters *	params,
		const EcPrivateKey *	privateKey,
		const HashAlgo *	hashAlgo,
		const char_t *	id,
		size_t	idLen,
		const void *	message,
		size_t	messageLen,
		EcdsaSignature *	signature
	)

SM2 signature generation.

Parameters

[in]	prngAlgo	PRNG algorithm
[in]	prngContext	Pointer to the PRNG context
[in]	params	EC domain parameters
[in]	privateKey	Signer's EC private key
[in]	hashAlgo	Underlying hash function
[in]	id	User's identity
[in]	idLen	Length of the user's identity
[in]	message	Message to be signed
[in]	messageLen	Length of the message, in bytes
[out]	signature	(r, s) integer pair

Returns

Error code

Definition at line 62 of file sm2.c.

sm2VerifySignature()

error_t sm2VerifySignature	(	const EcDomainParameters *	params,
		const EcPublicKey *	publicKey,
		const HashAlgo *	hashAlgo,
		const char_t *	id,
		size_t	idLen,
		const void *	message,
		size_t	messageLen,
		const EcdsaSignature *	signature
	)

SM2 signature verification.

Parameters

[in]	params	EC domain parameters
[in]	publicKey	Signer's SM2 public key
[in]	hashAlgo	Underlying hash function
[in]	id	User's identity
[in]	idLen	Length of the user's identity
[in]	message	Message whose signature is to be verified
[in]	messageLen	Length of the message, in bytes
[in]	signature	(r, s) integer pair

Returns

Error code

Definition at line 216 of file sm2.c.

Variable Documentation

SM2_WITH_SM3_OID

const uint8_t SM2_WITH_SM3_OID[8] = {0x2A, 0x81, 0x1C, 0xCF, 0x55, 0x01, 0x83, 0x75}

Definition at line 44 of file sm2.c.