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