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
|
/*
* Copyright (C) 2020 Sony Interactive Entertainment Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "CryptoAlgorithmAES_KW.h"
#if ENABLE(WEB_CRYPTO)
#include "CryptoKeyAES.h"
#include "OpenSSLUtilities.h"
namespace WebCore {
static std::optional<Vector<uint8_t>> cryptWrapKey(const Vector<uint8_t>& key, const Vector<uint8_t>& data)
{
if (data.size() % 8)
return std::nullopt;
AESKey aesKey;
if (!aesKey.setKey(key, AES_ENCRYPT))
return std::nullopt;
Vector<uint8_t> cipherText(data.size() + 8);
if (AES_wrap_key(aesKey.key(), nullptr, cipherText.data(), data.data(), data.size()) < 0)
return std::nullopt;
return cipherText;
}
static std::optional<Vector<uint8_t>> cryptUnwrapKey(const Vector<uint8_t>& key, const Vector<uint8_t>& data)
{
if (data.size() % 8 || !data.size())
return std::nullopt;
AESKey aesKey;
if (!aesKey.setKey(key, AES_DECRYPT))
return std::nullopt;
Vector<uint8_t> plainText(data.size() - 8);
if (AES_unwrap_key(aesKey.key(), nullptr, plainText.data(), data.data(), data.size()) < 0)
return std::nullopt;
return plainText;
}
ExceptionOr<Vector<uint8_t>> CryptoAlgorithmAES_KW::platformWrapKey(const CryptoKeyAES& key, const Vector<uint8_t>& data)
{
auto output = cryptWrapKey(key.key(), data);
if (!output)
return Exception { OperationError };
return WTFMove(*output);
}
ExceptionOr<Vector<uint8_t>> CryptoAlgorithmAES_KW::platformUnwrapKey(const CryptoKeyAES& key, const Vector<uint8_t>& data)
{
auto output = cryptUnwrapKey(key.key(), data);
if (!output)
return Exception { OperationError };
return WTFMove(*output);
}
} // namespace WebCore
#endif // ENABLE(WEB_CRYPTO)
|
