1/*
2 * Copyright (C) 2017 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "BufferSource.h"
29#include "CryptoAlgorithmParameters.h"
30#include <JavaScriptCore/JSObject.h>
31#include <JavaScriptCore/Strong.h>
32#include <wtf/Vector.h>
33
34#if ENABLE(WEB_CRYPTO)
35
36namespace WebCore {
37
38class CryptoAlgorithmHkdfParams final : public CryptoAlgorithmParameters {
39public:
40 // FIXME: Consider merging hash and hashIdentifier.
41 Variant<JSC::Strong<JSC::JSObject>, String> hash;
42 CryptoAlgorithmIdentifier hashIdentifier;
43 BufferSource salt;
44 BufferSource info;
45
46 const Vector<uint8_t>& saltVector() const
47 {
48 if (!m_saltVector.isEmpty() || !salt.length())
49 return m_saltVector;
50
51 m_saltVector.append(salt.data(), salt.length());
52 return m_saltVector;
53 }
54
55 const Vector<uint8_t>& infoVector() const
56 {
57 if (!m_infoVector.isEmpty() || !info.length())
58 return m_infoVector;
59
60 m_infoVector.append(info.data(), info.length());
61 return m_infoVector;
62 }
63
64 Class parametersClass() const final { return Class::HkdfParams; }
65
66 CryptoAlgorithmHkdfParams isolatedCopy() const
67 {
68 CryptoAlgorithmHkdfParams result;
69 result.identifier = identifier;
70 result.m_saltVector = saltVector();
71 result.m_infoVector = infoVector();
72 result.hashIdentifier = hashIdentifier;
73
74 return result;
75 }
76
77private:
78 mutable Vector<uint8_t> m_saltVector;
79 mutable Vector<uint8_t> m_infoVector;
80};
81
82} // namespace WebCore
83
84SPECIALIZE_TYPE_TRAITS_CRYPTO_ALGORITHM_PARAMETERS(HkdfParams)
85
86#endif // ENABLE(WEB_CRYPTO)
87