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#ifndef SIGNATRUETOOLS_SIGN_INFO_H
16#define SIGNATRUETOOLS_SIGN_INFO_H
17
18#include <vector>
19#include <string>
20#include <cstdint>
21#include <cstdlib>
22#include <typeinfo>
23
24#include "signature_tools_log.h"
25#include "merkle_tree_extension.h"
26
27namespace OHOS {
28namespace SignatureTools {
29
30class SignInfo {
31public:
32    static constexpr int32_t FLAG_MERKLE_TREE_INCLUDED = 0x1;
33    static constexpr int32_t MAX_EXTENSION_NUM = 1;
34    static constexpr int32_t SIGN_INFO_SIZE_WITHOUT_SIGNATURE = 60;
35    static constexpr int32_t SALT_BUFFER_LENGTH = 32;
36    static constexpr int32_t SIGNATURE_ALIGNMENT = 4;
37    SignInfo();
38    SignInfo(int32_t saltSize, int32_t flags, int64_t dataSize,
39             const std::vector<int8_t>& salt, const std::vector<int8_t>& sig);
40    SignInfo(int32_t saltSize,
41             int32_t sigSize,
42             int32_t flags,
43             int64_t dataSize,
44             const std::vector<int8_t>& salt,
45             int32_t extensionNum,
46             int32_t extensionOffset,
47             const std::vector<int8_t>& signature,
48             const std::vector<int8_t>& zeroPadding,
49             const std::vector<MerkleTreeExtension*>& extensionList);
50    SignInfo(const SignInfo& other);
51    SignInfo& operator=(const SignInfo& other);
52    virtual ~SignInfo();
53    static std::vector<MerkleTreeExtension*> ParseMerkleTreeExtension(ByteBuffer* bf, int32_t inExtensionNum);
54    static SignInfo FromByteArray(std::vector<int8_t> bytes);
55    int32_t GetSize();
56    void AddExtension(MerkleTreeExtension* extension);
57    Extension* GetExtensionByType(int32_t type);
58    int32_t GetExtensionNum();
59    std::vector<int8_t> GetSignature();
60    int64_t GetDataSize();
61    void ToByteArray(std::vector<int8_t> &ret);
62
63private:
64    int32_t saltSize;
65    int32_t sigSize;
66    int32_t flags;
67    int64_t dataSize;
68    std::vector<int8_t> salt;
69    int32_t extensionNum;
70    int32_t extensionOffset;
71    std::vector<int8_t> signature;
72    std::vector<int8_t> zeroPadding;
73    std::vector<MerkleTreeExtension*> extensionList;
74};
75} // namespace SignatureTools
76} // namespace OHOS
77#endif // SIGNATRUETOOLS_ELF_SIGN_BLOCK_H