1 /* 2 * Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved. 3 * Copyright 2017 Ribose Inc. All Rights Reserved. 4 * Ported from Ribose contributions from Botan. 5 * 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 10 */ 11 12 #ifndef OSSL_CRYPTO_SM2_H 13 # define OSSL_CRYPTO_SM2_H 14 # pragma once 15 16 # include <openssl/opensslconf.h> 17 18 # if !defined(OPENSSL_NO_SM2) && !defined(FIPS_MODULE) 19 20 # include <openssl/ec.h> 21 # include "crypto/types.h" 22 23 int ossl_sm2_key_private_check(const EC_KEY *eckey); 24 25 /* The default user id as specified in GM/T 0009-2012 */ 26 # define SM2_DEFAULT_USERID "1234567812345678" 27 28 int ossl_sm2_compute_z_digest(uint8_t *out, 29 const EVP_MD *digest, 30 const uint8_t *id, 31 const size_t id_len, 32 const EC_KEY *key); 33 34 /* 35 * SM2 signature operation. Computes Z and then signs H(Z || msg) using SM2 36 */ 37 ECDSA_SIG *ossl_sm2_do_sign(const EC_KEY *key, 38 const EVP_MD *digest, 39 const uint8_t *id, 40 const size_t id_len, 41 const uint8_t *msg, size_t msg_len); 42 43 int ossl_sm2_do_verify(const EC_KEY *key, 44 const EVP_MD *digest, 45 const ECDSA_SIG *signature, 46 const uint8_t *id, 47 const size_t id_len, 48 const uint8_t *msg, size_t msg_len); 49 50 /* 51 * SM2 signature generation. 52 */ 53 int ossl_sm2_internal_sign(const unsigned char *dgst, int dgstlen, 54 unsigned char *sig, unsigned int *siglen, 55 EC_KEY *eckey); 56 57 /* 58 * SM2 signature verification. 59 */ 60 int ossl_sm2_internal_verify(const unsigned char *dgst, int dgstlen, 61 const unsigned char *sig, int siglen, 62 EC_KEY *eckey); 63 64 /* 65 * SM2 encryption 66 */ 67 int ossl_sm2_ciphertext_size(const EC_KEY *key, const EVP_MD *digest, 68 size_t msg_len, size_t *ct_size); 69 70 int ossl_sm2_plaintext_size(const unsigned char *ct, size_t ct_size, 71 size_t *pt_size); 72 73 int ossl_sm2_encrypt(const EC_KEY *key, 74 const EVP_MD *digest, 75 const uint8_t *msg, size_t msg_len, 76 uint8_t *ciphertext_buf, size_t *ciphertext_len); 77 78 int ossl_sm2_decrypt(const EC_KEY *key, 79 const EVP_MD *digest, 80 const uint8_t *ciphertext, size_t ciphertext_len, 81 uint8_t *ptext_buf, size_t *ptext_len); 82 83 const unsigned char *ossl_sm2_algorithmidentifier_encoding(int md_nid, 84 size_t *len); 85 # endif /* OPENSSL_NO_SM2 */ 86 #endif 87