1/*
2 * Copyright (C) 2013 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#include "config.h"
27#include "CryptoAlgorithmRSASSA_PKCS1_v1_5.h"
28
29#if ENABLE(SUBTLE_CRYPTO)
30
31#include "CryptoAlgorithmRsaKeyGenParams.h"
32#include "CryptoAlgorithmRsaKeyParamsWithHash.h"
33#include "CryptoAlgorithmRsaSsaParams.h"
34#include "CryptoKeyDataRSAComponents.h"
35#include "CryptoKeyRSA.h"
36#include "ExceptionCode.h"
37
38namespace WebCore {
39
40const char* const CryptoAlgorithmRSASSA_PKCS1_v1_5::s_name = "RSASSA-PKCS1-v1_5";
41
42CryptoAlgorithmRSASSA_PKCS1_v1_5::CryptoAlgorithmRSASSA_PKCS1_v1_5()
43{
44}
45
46CryptoAlgorithmRSASSA_PKCS1_v1_5::~CryptoAlgorithmRSASSA_PKCS1_v1_5()
47{
48}
49
50std::unique_ptr<CryptoAlgorithm> CryptoAlgorithmRSASSA_PKCS1_v1_5::create()
51{
52    return std::unique_ptr<CryptoAlgorithm>(new CryptoAlgorithmRSASSA_PKCS1_v1_5);
53}
54
55CryptoAlgorithmIdentifier CryptoAlgorithmRSASSA_PKCS1_v1_5::identifier() const
56{
57    return s_identifier;
58}
59
60bool CryptoAlgorithmRSASSA_PKCS1_v1_5::keyAlgorithmMatches(const CryptoAlgorithmRsaSsaParams& algorithmParameters, const CryptoKey& key) const
61{
62    if (key.algorithmIdentifier() != s_identifier)
63        return false;
64    ASSERT(isCryptoKeyRSA(key));
65
66    CryptoAlgorithmIdentifier keyHash;
67    if (toCryptoKeyRSA(key).isRestrictedToHash(keyHash) && keyHash != algorithmParameters.hash)
68        return false;
69
70    return true;
71}
72
73void CryptoAlgorithmRSASSA_PKCS1_v1_5::sign(const CryptoAlgorithmParameters& parameters, const CryptoKey& key, const CryptoOperationData& data, VectorCallback callback, VoidCallback failureCallback, ExceptionCode& ec)
74{
75    const CryptoAlgorithmRsaSsaParams& rsaSSAParameters = toCryptoAlgorithmRsaSsaParams(parameters);
76
77    if (!keyAlgorithmMatches(rsaSSAParameters, key)) {
78        ec = NOT_SUPPORTED_ERR;
79        return;
80    }
81
82    platformSign(rsaSSAParameters, toCryptoKeyRSA(key), data, WTF::move(callback), WTF::move(failureCallback), ec);
83}
84
85void CryptoAlgorithmRSASSA_PKCS1_v1_5::verify(const CryptoAlgorithmParameters& parameters, const CryptoKey& key, const CryptoOperationData& signature, const CryptoOperationData& data, BoolCallback callback, VoidCallback failureCallback, ExceptionCode& ec)
86{
87    const CryptoAlgorithmRsaSsaParams& rsaSSAParameters = toCryptoAlgorithmRsaSsaParams(parameters);
88
89    if (!keyAlgorithmMatches(rsaSSAParameters, key)) {
90        ec = NOT_SUPPORTED_ERR;
91        return;
92    }
93
94    platformVerify(rsaSSAParameters, toCryptoKeyRSA(key), signature, data, WTF::move(callback), WTF::move(failureCallback), ec);
95}
96
97void CryptoAlgorithmRSASSA_PKCS1_v1_5::generateKey(const CryptoAlgorithmParameters& parameters, bool extractable, CryptoKeyUsage usages, KeyOrKeyPairCallback callback, VoidCallback failureCallback, ExceptionCode&)
98{
99    const CryptoAlgorithmRsaKeyGenParams& rsaParameters = toCryptoAlgorithmRsaKeyGenParams(parameters);
100
101    auto keyPairCallback = [callback](CryptoKeyPair& pair) {
102        callback(nullptr, &pair);
103    };
104
105    CryptoKeyRSA::generatePair(CryptoAlgorithmIdentifier::RSASSA_PKCS1_v1_5, rsaParameters.modulusLength, rsaParameters.publicExponent, extractable, usages, WTF::move(keyPairCallback), WTF::move(failureCallback));
106}
107
108void CryptoAlgorithmRSASSA_PKCS1_v1_5::importKey(const CryptoAlgorithmParameters& parameters, const CryptoKeyData& keyData, bool extractable, CryptoKeyUsage usage, KeyCallback callback, VoidCallback failureCallback, ExceptionCode&)
109{
110    const CryptoAlgorithmRsaKeyParamsWithHash& rsaKeyParameters = toCryptoAlgorithmRsaKeyParamsWithHash(parameters);
111    const CryptoKeyDataRSAComponents& rsaComponents = toCryptoKeyDataRSAComponents(keyData);
112
113    RefPtr<CryptoKeyRSA> result = CryptoKeyRSA::create(CryptoAlgorithmIdentifier::RSASSA_PKCS1_v1_5, rsaComponents, extractable, usage);
114    if (!result) {
115        failureCallback();
116        return;
117    }
118
119    if (rsaKeyParameters.hasHash)
120        result->restrictToHash(rsaKeyParameters.hash);
121
122    callback(*result);
123}
124
125}
126
127#endif // ENABLE(SUBTLE_CRYPTO)
128