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 "CryptoAlgorithmRSA_OAEP.h"
28
29#if ENABLE(SUBTLE_CRYPTO)
30
31#include "CommonCryptoUtilities.h"
32#include "CryptoAlgorithmRsaOaepParams.h"
33#include "CryptoKeyRSA.h"
34#include "ExceptionCode.h"
35
36namespace WebCore {
37
38void CryptoAlgorithmRSA_OAEP::platformEncrypt(const CryptoAlgorithmRsaOaepParams& parameters, const CryptoKeyRSA& key, const CryptoOperationData& data, VectorCallback callback, VoidCallback failureCallback, ExceptionCode& ec)
39{
40    CCDigestAlgorithm digestAlgorithm;
41    if (!getCommonCryptoDigestAlgorithm(parameters.hash, digestAlgorithm)) {
42        ec = NOT_SUPPORTED_ERR;
43        return;
44    }
45
46    Vector<uint8_t> cipherText(1024);
47    size_t cipherTextLength = cipherText.size();
48    ASSERT(parameters.hasLabel || parameters.label.isEmpty());
49    CCCryptorStatus status = CCRSACryptorEncrypt(key.platformKey(), ccOAEPPadding, data.first, data.second, cipherText.data(), &cipherTextLength, parameters.label.data(), parameters.label.size(), digestAlgorithm);
50    if (status) {
51        failureCallback();
52        return;
53    }
54
55    cipherText.resize(cipherTextLength);
56    callback(cipherText);
57}
58
59void CryptoAlgorithmRSA_OAEP::platformDecrypt(const CryptoAlgorithmRsaOaepParams& parameters, const CryptoKeyRSA& key, const CryptoOperationData& data, VectorCallback callback, VoidCallback failureCallback, ExceptionCode& ec)
60{
61    CCDigestAlgorithm digestAlgorithm;
62    if (!getCommonCryptoDigestAlgorithm(parameters.hash, digestAlgorithm)) {
63        ec = NOT_SUPPORTED_ERR;
64        return;
65    }
66
67    Vector<uint8_t> plainText(1024);
68    size_t plainTextLength = plainText.size();
69    CCCryptorStatus status = CCRSACryptorDecrypt(key.platformKey(), ccOAEPPadding, data.first, data.second, plainText.data(), &plainTextLength, parameters.label.data(), parameters.label.size(), digestAlgorithm);
70    if (status) {
71        failureCallback();
72        return;
73    }
74
75    plainText.resize(plainTextLength);
76    callback(plainText);
77}
78
79} // namespace WebCore
80
81#endif // ENABLE(SUBTLE_CRYPTO)
82