Coverage Report

Created: 2026-03-31 11:00

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/libreoffice/include/comphelper/crypto/Crypto.hxx
Line
Count
Source
1
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
/*
3
 * This file is part of the LibreOffice project.
4
 *
5
 * This Source Code Form is subject to the terms of the Mozilla Public
6
 * License, v. 2.0. If a copy of the MPL was not distributed with this
7
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8
 *
9
 */
10
11
#pragma once
12
13
#include <comphelper/comphelperdllapi.h>
14
#include <sal/types.h>
15
16
#include <vector>
17
#include <memory>
18
19
namespace comphelper
20
{
21
/** Rounds up the input to the nearest multiple
22
 *
23
 *  For example:
24
 *  input  1, multiple 16 = 16
25
 *  input 16, multiple 16 = 16
26
 *  input 17, multiple 16 = 32
27
 *  input 31, multiple 16 = 32
28
 */
29
template <typename T> T roundUp(T input, T multiple)
30
1
{
31
1
    if (input % multiple == 0)
32
1
        return input;
33
0
    return ((input / multiple) * multiple) + multiple;
34
1
}
Unexecuted instantiation: unsigned long comphelper::roundUp<unsigned long>(unsigned long, unsigned long)
int comphelper::roundUp<int>(int, int)
Line
Count
Source
30
1
{
31
1
    if (input % multiple == 0)
32
1
        return input;
33
0
    return ((input / multiple) * multiple) + multiple;
34
1
}
Unexecuted instantiation: unsigned int comphelper::roundUp<unsigned int>(unsigned int, unsigned int)
35
36
enum class CryptoHashType
37
{
38
    SHA1,
39
    SHA256,
40
    SHA384,
41
    SHA512
42
};
43
44
enum class CryptoType
45
{
46
    UNKNOWN,
47
    AES_128_ECB,
48
    AES_128_CBC,
49
    AES_192_ECB,
50
    AES_192_CBC,
51
    AES_256_ECB,
52
    AES_256_CBC,
53
};
54
55
class ICryptoImplementation
56
{
57
public:
58
    static std::shared_ptr<ICryptoImplementation> createInstance();
59
60
    virtual void setupDecryptContext(std::vector<sal_uInt8>& key, std::vector<sal_uInt8>& iv,
61
                                     CryptoType eType)
62
        = 0;
63
    virtual void setupEncryptContext(std::vector<sal_uInt8>& key, std::vector<sal_uInt8>& iv,
64
                                     CryptoType type)
65
        = 0;
66
    virtual void setupCryptoHashContext(std::vector<sal_uInt8>& rKey, CryptoHashType eType) = 0;
67
68
    virtual sal_uInt32 decryptUpdate(std::vector<sal_uInt8>& output, std::vector<sal_uInt8>& input,
69
                                     sal_uInt32 inputLength)
70
        = 0;
71
    virtual sal_uInt32 encryptUpdate(std::vector<sal_uInt8>& output, std::vector<sal_uInt8>& input,
72
                                     sal_uInt32 inputLength)
73
        = 0;
74
    virtual bool cryptoHashUpdate(std::vector<sal_uInt8>& rInput, sal_uInt32 nInputLength) = 0;
75
    virtual bool cryptoHashFinalize(std::vector<sal_uInt8>& rHash) = 0;
76
};
77
78
class COMPHELPER_DLLPUBLIC Crypto
79
{
80
protected:
81
    std::shared_ptr<ICryptoImplementation> mpImpl;
82
83
    Crypto();
84
85
public:
86
    virtual ~Crypto();
87
};
88
89
/** Decrypt vector of bytes with AES encryption */
90
class COMPHELPER_DLLPUBLIC Decrypt final : public Crypto
91
{
92
public:
93
    Decrypt(std::vector<sal_uInt8>& key, std::vector<sal_uInt8>& iv, CryptoType type);
94
95
    sal_uInt32 update(std::vector<sal_uInt8>& output, std::vector<sal_uInt8>& input,
96
                      sal_uInt32 inputLength = 0);
97
98
    static sal_uInt32 aes128ecb(std::vector<sal_uInt8>& output, std::vector<sal_uInt8>& input,
99
                                std::vector<sal_uInt8>& key);
100
};
101
102
/** Encrypt vector of bytes with AES encryption */
103
class COMPHELPER_DLLPUBLIC Encrypt final : public Crypto
104
{
105
public:
106
    /** Initialize encryption for key, init vector and encryption type.
107
     *
108
     * key - encryption key, key size should be the same as block size
109
     * iv - init vector: it can be empty - will not be used (init vector will be 0)
110
     */
111
    Encrypt(std::vector<sal_uInt8>& key, std::vector<sal_uInt8>& iv, CryptoType type);
112
113
    /** Encrypt the input and write into output
114
     *
115
     * inputLength - size from the input to be encrypted (0 means to use the size of the vector)
116
     */
117
    sal_uInt32 update(std::vector<sal_uInt8>& output, std::vector<sal_uInt8>& input,
118
                      sal_uInt32 inputLength = 0);
119
};
120
121
class COMPHELPER_DLLPUBLIC CryptoHash final : public Crypto
122
{
123
    sal_Int32 mnHashSize;
124
125
public:
126
    CryptoHash(std::vector<sal_uInt8>& rKey, CryptoHashType eType);
127
    bool update(std::vector<sal_uInt8>& rInput, sal_uInt32 nInputLength = 0);
128
    std::vector<sal_uInt8> finalize();
129
};
130
131
} // namespace comphelper
132
133
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */