1 /*
2 * Copyright (C) 2021-2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "util/digest_parameter.h"
17
18 #include "openssl/evp.h"
19
20 namespace OHOS::Security::Verify {
DigestParameter()21 DigestParameter::DigestParameter() : digestOutputSizeBytes(0), md(nullptr), ptrCtx(nullptr)
22 {
23 }
24
~DigestParameter()25 DigestParameter::~DigestParameter()
26 {
27 if (ptrCtx != nullptr) {
28 EVP_MD_CTX_destroy(ptrCtx);
29 ptrCtx = nullptr;
30 }
31 /* md points to the OpenSSL global static struct constant, no need to free. */
32 md = nullptr;
33 }
34
DigestParameter(const DigestParameter & other)35 DigestParameter::DigestParameter(const DigestParameter& other)
36 {
37 digestOutputSizeBytes = other.digestOutputSizeBytes;
38 md = other.md;
39 ptrCtx = EVP_MD_CTX_create();
40 EVP_MD_CTX_copy(ptrCtx, other.ptrCtx);
41 }
42
operator =(const DigestParameter & other)43 DigestParameter& DigestParameter::operator = (const DigestParameter& other)
44 {
45 if (ptrCtx != nullptr) {
46 EVP_MD_CTX_destroy(ptrCtx);
47 ptrCtx = nullptr;
48 }
49
50 digestOutputSizeBytes = other.digestOutputSizeBytes;
51 md = other.md;
52 ptrCtx = EVP_MD_CTX_create();
53 EVP_MD_CTX_copy(ptrCtx, other.ptrCtx);
54 return *this;
55 }
56 } // namespace OHOS::Security::Verify
57