1/*
2 * Copyright (c) 2024-2024 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#include "digest_parameter.h"
16#include "openssl/evp.h"
17
18namespace OHOS {
19namespace SignatureTools {
20DigestParameter::DigestParameter() : digestOutputSizeBytes(0), md(nullptr), ctxPtr(nullptr)
21{
22}
23
24DigestParameter::~DigestParameter()
25{
26    if (ctxPtr != nullptr) {
27        EVP_MD_CTX_destroy(ctxPtr);
28        ctxPtr = nullptr;
29    }
30    /* md points to the OpenSSL global static struct constant, no need to free. */
31    md = nullptr;
32}
33
34DigestParameter::DigestParameter(const DigestParameter& other)
35{
36    digestOutputSizeBytes = other.digestOutputSizeBytes;
37    md = other.md;
38    ctxPtr = EVP_MD_CTX_create();
39    EVP_MD_CTX_copy(ctxPtr, other.ctxPtr);
40}
41
42DigestParameter& DigestParameter::operator = (const DigestParameter& other)
43{
44    if (ctxPtr != nullptr) {
45        EVP_MD_CTX_destroy(ctxPtr);
46        ctxPtr = nullptr;
47    }
48    digestOutputSizeBytes = other.digestOutputSizeBytes;
49    md = other.md;
50    ctxPtr = EVP_MD_CTX_create();
51    EVP_MD_CTX_copy(ctxPtr, other.ctxPtr);
52    return *this;
53}
54}
55}