blob: 6def34ff0bbe392b72c4f221040b2fddb72da1aa (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/*
Derived from source code of TrueCrypt 7.1a, which is
Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
by the TrueCrypt License 3.0.
Modifications and additions to the original source code (contained in this file)
and all other portions of this file are Copyright (c) 2013-2015 IDRIX
and are governed by the Apache License 2.0 the full text of which is
contained in the file License.txt included in VeraCrypt binary and source
code distribution packages.
*/
#include "Volume/EncryptionMode.h"
#include "Volume/EncryptionModeXTS.h"
#include "VolumeLayout.h"
#include "Boot/Windows/BootCommon.h"
namespace VeraCrypt
{
VolumeLayout::VolumeLayout ()
{
}
VolumeLayout::~VolumeLayout ()
{
}
VolumeLayoutList VolumeLayout::GetAvailableLayouts (VolumeType::Enum type)
{
VolumeLayoutList layouts;
layouts.push_back (shared_ptr <VolumeLayout> (new VolumeLayoutV2Normal ()));
layouts.push_back (shared_ptr <VolumeLayout> (new VolumeLayoutV1Normal ()));
layouts.push_back (shared_ptr <VolumeLayout> (new VolumeLayoutV2Hidden ()));
layouts.push_back (shared_ptr <VolumeLayout> (new VolumeLayoutSystemEncryption ()));
if (type != VolumeType::Unknown)
{
VolumeLayoutList l;
foreach (shared_ptr <VolumeLayout> vl, layouts)
{
if (vl->GetType() == type)
l.push_back (vl);
}
layouts = l;
}
return layouts;
}
shared_ptr <VolumeHeader> VolumeLayout::GetHeader ()
{
if (Header.get() == nullptr)
Header.reset (new VolumeHeader (GetHeaderSize()));
return Header;
}
VolumeLayoutV1Normal::VolumeLayoutV1Normal ()
{
Type = VolumeType::Normal;
HeaderOffset = TC_VOLUME_HEADER_OFFSET;
HeaderSize = TC_VOLUME_HEADER_SIZE_LEGACY;
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Serpent ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Twofish ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofish ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofishSerpent ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentAES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentTwofishAES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new TwofishSerpent ()));
SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ()));
}
uint64 VolumeLayoutV1Normal::GetDataOffset (uint64 volumeHostSize) const
{
return HeaderSize;
}
uint64 VolumeLayoutV1Normal::GetDataSize (uint64 volumeHostSize) const
{
return volumeHostSize - GetHeaderSize();
}
VolumeLayoutV2Normal::VolumeLayoutV2Normal ()
{
Type = VolumeType::Normal;
HeaderOffset = TC_VOLUME_HEADER_OFFSET;
HeaderSize = TC_VOLUME_HEADER_SIZE;
BackupHeaderOffset = -TC_VOLUME_HEADER_GROUP_SIZE;
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Serpent ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Twofish ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofish ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofishSerpent ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentAES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentTwofishAES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new TwofishSerpent ()));
SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ()));
}
uint64 VolumeLayoutV2Normal::GetDataOffset (uint64 volumeHostSize) const
{
return Header->GetEncryptedAreaStart();
}
uint64 VolumeLayoutV2Normal::GetDataSize (uint64 volumeHostSize) const
{
return Header->GetVolumeDataSize();
}
uint64 VolumeLayoutV2Normal::GetMaxDataSize (uint64 volumeSize) const
{
if (volumeSize < TC_TOTAL_VOLUME_HEADERS_SIZE)
return 0;
return volumeSize - TC_TOTAL_VOLUME_HEADERS_SIZE;
}
VolumeLayoutV2Hidden::VolumeLayoutV2Hidden ()
{
Type = VolumeType::Hidden;
HeaderOffset = TC_HIDDEN_VOLUME_HEADER_OFFSET;
HeaderSize = TC_VOLUME_HEADER_SIZE;
BackupHeaderOffset = -TC_HIDDEN_VOLUME_HEADER_OFFSET;
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Serpent ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Twofish ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofish ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofishSerpent ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentAES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentTwofishAES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new TwofishSerpent ()));
SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ()));
}
uint64 VolumeLayoutV2Hidden::GetDataOffset (uint64 volumeHostSize) const
{
return Header->GetEncryptedAreaStart();
}
uint64 VolumeLayoutV2Hidden::GetDataSize (uint64 volumeHostSize) const
{
return Header->GetVolumeDataSize();
}
uint64 VolumeLayoutV2Hidden::GetMaxDataSize (uint64 volumeSize) const
{
// Reserve free space at the end of the host filesystem
uint64 reservedSize;
if (volumeSize < TC_VOLUME_SMALL_SIZE_THRESHOLD)
reservedSize = TC_HIDDEN_VOLUME_HOST_FS_RESERVED_END_AREA_SIZE;
else
reservedSize = TC_HIDDEN_VOLUME_HOST_FS_RESERVED_END_AREA_SIZE_HIGH; // Ensure size of a hidden volume larger than TC_VOLUME_SMALL_SIZE_THRESHOLD is a multiple of the maximum supported sector size
if (volumeSize < reservedSize)
return 0;
return volumeSize - reservedSize;
}
VolumeLayoutSystemEncryption::VolumeLayoutSystemEncryption ()
{
Type = VolumeType::Normal;
HeaderOffset = TC_BOOT_VOLUME_HEADER_SECTOR_OFFSET;
HeaderSize = TC_BOOT_ENCRYPTION_VOLUME_HEADER_SIZE;
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Serpent ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Twofish ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofish ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofishSerpent ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentAES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentTwofishAES ()));
SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new TwofishSerpent ()));
SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ()));
}
uint64 VolumeLayoutSystemEncryption::GetDataOffset (uint64 volumeHostSize) const
{
return 0;
}
uint64 VolumeLayoutSystemEncryption::GetDataSize (uint64 volumeHostSize) const
{
return volumeHostSize;
}
Pkcs5KdfList VolumeLayoutSystemEncryption::GetSupportedKeyDerivationFunctions (bool truecryptMode) const
{
Pkcs5KdfList l;
if (!truecryptMode)
l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacSha256_Boot ()));
l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacRipemd160_1000 (truecryptMode)));
return l;
}
}
|
