2 * Copyright 2017-2020 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2017 Ribose Inc. All Rights Reserved.
4 * Ported from Ribose contributions from Botan.
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
12 #ifndef OSSL_CRYPTO_SM2_H
13 # define OSSL_CRYPTO_SM2_H
14 # include <openssl/opensslconf.h>
16 # ifndef OPENSSL_NO_SM2
18 # include <openssl/ec.h>
19 # include "crypto/types.h"
21 int sm2_key_private_check(const EC_KEY *eckey);
23 /* The default user id as specified in GM/T 0009-2012 */
24 # define SM2_DEFAULT_USERID "1234567812345678"
26 int sm2_compute_z_digest(uint8_t *out,
33 * SM2 signature operation. Computes Z and then signs H(Z || msg) using SM2
35 ECDSA_SIG *sm2_do_sign(const EC_KEY *key,
39 const uint8_t *msg, size_t msg_len);
41 int sm2_do_verify(const EC_KEY *key,
43 const ECDSA_SIG *signature,
46 const uint8_t *msg, size_t msg_len);
49 * SM2 signature generation.
51 int sm2_internal_sign(const unsigned char *dgst, int dgstlen,
52 unsigned char *sig, unsigned int *siglen, EC_KEY *eckey);
55 * SM2 signature verification.
57 int sm2_internal_verify(const unsigned char *dgst, int dgstlen,
58 const unsigned char *sig, int siglen, EC_KEY *eckey);
63 int sm2_ciphertext_size(const EC_KEY *key, const EVP_MD *digest, size_t msg_len,
66 int sm2_plaintext_size(const EC_KEY *key, const EVP_MD *digest, size_t msg_len,
69 int sm2_encrypt(const EC_KEY *key,
73 uint8_t *ciphertext_buf, size_t *ciphertext_len);
75 int sm2_decrypt(const EC_KEY *key,
77 const uint8_t *ciphertext,
78 size_t ciphertext_len, uint8_t *ptext_buf, size_t *ptext_len);
80 const unsigned char *sm2_algorithmidentifier_encoding(int md_nid, size_t *len);
81 # endif /* OPENSSL_NO_SM2 */