| /* |
| * Copyright (C) 2013 Apple Inc. All rights reserved. |
| * |
| * 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 "CryptoAlgorithmRSA_OAEP.h" |
| |
| #if ENABLE(WEB_CRYPTO) |
| |
| #include "CryptoAlgorithmRsaHashedImportParams.h" |
| #include "CryptoAlgorithmRsaHashedKeyGenParams.h" |
| #include "CryptoAlgorithmRsaOaepParams.h" |
| #include "CryptoKeyPair.h" |
| #include "CryptoKeyRSA.h" |
| #include <wtf/CrossThreadCopier.h> |
| #include <wtf/Variant.h> |
| |
| namespace WebCore { |
| |
| namespace CryptoAlgorithmRSA_OAEPInternal { |
| static const char* const ALG1 = "RSA-OAEP"; |
| static const char* const ALG224 = "RSA-OAEP-224"; |
| static const char* const ALG256 = "RSA-OAEP-256"; |
| static const char* const ALG384 = "RSA-OAEP-384"; |
| static const char* const ALG512 = "RSA-OAEP-512"; |
| } |
| |
| Ref<CryptoAlgorithm> CryptoAlgorithmRSA_OAEP::create() |
| { |
| return adoptRef(*new CryptoAlgorithmRSA_OAEP); |
| } |
| |
| CryptoAlgorithmIdentifier CryptoAlgorithmRSA_OAEP::identifier() const |
| { |
| return s_identifier; |
| } |
| |
| void CryptoAlgorithmRSA_OAEP::encrypt(const CryptoAlgorithmParameters& parameters, Ref<CryptoKey>&& key, Vector<uint8_t>&& plainText, VectorCallback&& callback, ExceptionCallback&& exceptionCallback, ScriptExecutionContext& context, WorkQueue& workQueue) |
| { |
| if (key->type() != CryptoKeyType::Public) { |
| exceptionCallback(InvalidAccessError); |
| return; |
| } |
| |
| dispatchOperationInWorkQueue(workQueue, context, WTFMove(callback), WTFMove(exceptionCallback), |
| [parameters = crossThreadCopy(downcast<CryptoAlgorithmRsaOaepParams>(parameters)), key = WTFMove(key), plainText = WTFMove(plainText)] { |
| return platformEncrypt(parameters, downcast<CryptoKeyRSA>(key.get()), plainText); |
| }); |
| } |
| |
| void CryptoAlgorithmRSA_OAEP::decrypt(const CryptoAlgorithmParameters& parameters, Ref<CryptoKey>&& key, Vector<uint8_t>&& cipherText, VectorCallback&& callback, ExceptionCallback&& exceptionCallback, ScriptExecutionContext& context, WorkQueue& workQueue) |
| { |
| if (key->type() != CryptoKeyType::Private) { |
| exceptionCallback(InvalidAccessError); |
| return; |
| } |
| |
| dispatchOperationInWorkQueue(workQueue, context, WTFMove(callback), WTFMove(exceptionCallback), |
| [parameters = crossThreadCopy(downcast<CryptoAlgorithmRsaOaepParams>(parameters)), key = WTFMove(key), cipherText = WTFMove(cipherText)] { |
| return platformDecrypt(parameters, downcast<CryptoKeyRSA>(key.get()), cipherText); |
| }); |
| } |
| |
| void CryptoAlgorithmRSA_OAEP::generateKey(const CryptoAlgorithmParameters& parameters, bool extractable, CryptoKeyUsageBitmap usages, KeyOrKeyPairCallback&& callback, ExceptionCallback&& exceptionCallback, ScriptExecutionContext& context) |
| { |
| const auto& rsaParameters = downcast<CryptoAlgorithmRsaHashedKeyGenParams>(parameters); |
| |
| if (usages & (CryptoKeyUsageSign | CryptoKeyUsageVerify | CryptoKeyUsageDeriveKey | CryptoKeyUsageDeriveBits)) { |
| exceptionCallback(SyntaxError); |
| return; |
| } |
| |
| auto keyPairCallback = [capturedCallback = WTFMove(callback)](CryptoKeyPair&& pair) { |
| pair.publicKey->setUsagesBitmap(pair.publicKey->usagesBitmap() & (CryptoKeyUsageEncrypt | CryptoKeyUsageWrapKey)); |
| pair.privateKey->setUsagesBitmap(pair.privateKey->usagesBitmap() & (CryptoKeyUsageDecrypt | CryptoKeyUsageUnwrapKey)); |
| capturedCallback(WTFMove(pair)); |
| }; |
| auto failureCallback = [capturedCallback = WTFMove(exceptionCallback)]() { |
| capturedCallback(OperationError); |
| }; |
| CryptoKeyRSA::generatePair(CryptoAlgorithmIdentifier::RSA_OAEP, rsaParameters.hashIdentifier, true, rsaParameters.modulusLength, rsaParameters.publicExponentVector(), extractable, usages, WTFMove(keyPairCallback), WTFMove(failureCallback), &context); |
| } |
| |
| void CryptoAlgorithmRSA_OAEP::importKey(CryptoKeyFormat format, KeyData&& data, const CryptoAlgorithmParameters& parameters, bool extractable, CryptoKeyUsageBitmap usages, KeyCallback&& callback, ExceptionCallback&& exceptionCallback) |
| { |
| using namespace CryptoAlgorithmRSA_OAEPInternal; |
| |
| const auto& rsaParameters = downcast<CryptoAlgorithmRsaHashedImportParams>(parameters); |
| |
| RefPtr<CryptoKeyRSA> result; |
| switch (format) { |
| case CryptoKeyFormat::Jwk: { |
| JsonWebKey key = WTFMove(WTF::get<JsonWebKey>(data)); |
| |
| bool isUsagesAllowed = false; |
| if (!key.d.isNull()) { |
| isUsagesAllowed = isUsagesAllowed || !(usages ^ CryptoKeyUsageDecrypt); |
| isUsagesAllowed = isUsagesAllowed || !(usages ^ CryptoKeyUsageUnwrapKey); |
| isUsagesAllowed = isUsagesAllowed || !(usages ^ (CryptoKeyUsageDecrypt | CryptoKeyUsageUnwrapKey)); |
| } else { |
| isUsagesAllowed = isUsagesAllowed || !(usages ^ CryptoKeyUsageEncrypt); |
| isUsagesAllowed = isUsagesAllowed || !(usages ^ CryptoKeyUsageWrapKey); |
| isUsagesAllowed = isUsagesAllowed || !(usages ^ (CryptoKeyUsageEncrypt | CryptoKeyUsageWrapKey)); |
| } |
| isUsagesAllowed = isUsagesAllowed || !usages; |
| if (!isUsagesAllowed) { |
| exceptionCallback(SyntaxError); |
| return; |
| } |
| |
| if (usages && !key.use.isNull() && key.use != "enc") { |
| exceptionCallback(DataError); |
| return; |
| } |
| |
| bool isMatched = false; |
| switch (rsaParameters.hashIdentifier) { |
| case CryptoAlgorithmIdentifier::SHA_1: |
| isMatched = key.alg.isNull() || key.alg == ALG1; |
| break; |
| case CryptoAlgorithmIdentifier::SHA_224: |
| isMatched = key.alg.isNull() || key.alg == ALG224; |
| break; |
| case CryptoAlgorithmIdentifier::SHA_256: |
| isMatched = key.alg.isNull() || key.alg == ALG256; |
| break; |
| case CryptoAlgorithmIdentifier::SHA_384: |
| isMatched = key.alg.isNull() || key.alg == ALG384; |
| break; |
| case CryptoAlgorithmIdentifier::SHA_512: |
| isMatched = key.alg.isNull() || key.alg == ALG512; |
| break; |
| default: |
| break; |
| } |
| if (!isMatched) { |
| exceptionCallback(DataError); |
| return; |
| } |
| |
| result = CryptoKeyRSA::importJwk(rsaParameters.identifier, rsaParameters.hashIdentifier, WTFMove(key), extractable, usages); |
| break; |
| } |
| case CryptoKeyFormat::Spki: { |
| if (usages && (usages ^ CryptoKeyUsageEncrypt) && (usages ^ CryptoKeyUsageWrapKey) && (usages ^ (CryptoKeyUsageEncrypt | CryptoKeyUsageWrapKey))) { |
| exceptionCallback(SyntaxError); |
| return; |
| } |
| // FIXME: <webkit.org/b/165436> |
| result = CryptoKeyRSA::importSpki(rsaParameters.identifier, rsaParameters.hashIdentifier, WTFMove(WTF::get<Vector<uint8_t>>(data)), extractable, usages); |
| break; |
| } |
| case CryptoKeyFormat::Pkcs8: { |
| if (usages && (usages ^ CryptoKeyUsageDecrypt) && (usages ^ CryptoKeyUsageUnwrapKey) && (usages ^ (CryptoKeyUsageDecrypt | CryptoKeyUsageUnwrapKey))) { |
| exceptionCallback(SyntaxError); |
| return; |
| } |
| // FIXME: <webkit.org/b/165436> |
| result = CryptoKeyRSA::importPkcs8(parameters.identifier, rsaParameters.hashIdentifier, WTFMove(WTF::get<Vector<uint8_t>>(data)), extractable, usages); |
| break; |
| } |
| default: |
| exceptionCallback(NotSupportedError); |
| return; |
| } |
| if (!result) { |
| exceptionCallback(DataError); |
| return; |
| } |
| |
| callback(*result); |
| } |
| |
| void CryptoAlgorithmRSA_OAEP::exportKey(CryptoKeyFormat format, Ref<CryptoKey>&& key, KeyDataCallback&& callback, ExceptionCallback&& exceptionCallback) |
| { |
| using namespace CryptoAlgorithmRSA_OAEPInternal; |
| const auto& rsaKey = downcast<CryptoKeyRSA>(key.get()); |
| |
| if (!rsaKey.keySizeInBits()) { |
| exceptionCallback(OperationError); |
| return; |
| } |
| |
| KeyData result; |
| switch (format) { |
| case CryptoKeyFormat::Jwk: { |
| JsonWebKey jwk = rsaKey.exportJwk(); |
| switch (rsaKey.hashAlgorithmIdentifier()) { |
| case CryptoAlgorithmIdentifier::SHA_1: |
| jwk.alg = String(ALG1); |
| break; |
| case CryptoAlgorithmIdentifier::SHA_224: |
| jwk.alg = String(ALG224); |
| break; |
| case CryptoAlgorithmIdentifier::SHA_256: |
| jwk.alg = String(ALG256); |
| break; |
| case CryptoAlgorithmIdentifier::SHA_384: |
| jwk.alg = String(ALG384); |
| break; |
| case CryptoAlgorithmIdentifier::SHA_512: |
| jwk.alg = String(ALG512); |
| break; |
| default: |
| ASSERT_NOT_REACHED(); |
| } |
| result = WTFMove(jwk); |
| break; |
| } |
| case CryptoKeyFormat::Spki: { |
| // FIXME: <webkit.org/b/165437> |
| auto spki = rsaKey.exportSpki(); |
| if (spki.hasException()) { |
| exceptionCallback(spki.releaseException().code()); |
| return; |
| } |
| result = spki.releaseReturnValue(); |
| break; |
| } |
| case CryptoKeyFormat::Pkcs8: { |
| // FIXME: <webkit.org/b/165437> |
| auto pkcs8 = rsaKey.exportPkcs8(); |
| if (pkcs8.hasException()) { |
| exceptionCallback(pkcs8.releaseException().code()); |
| return; |
| } |
| result = pkcs8.releaseReturnValue(); |
| break; |
| } |
| default: |
| exceptionCallback(NotSupportedError); |
| return; |
| } |
| |
| callback(format, WTFMove(result)); |
| } |
| |
| } |
| |
| #endif // ENABLE(WEB_CRYPTO) |
