| /* |
| * Copyright (C) 2017 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 "CryptoAlgorithmECDSA.h" |
| |
| #if ENABLE(WEB_CRYPTO) |
| |
| #include "CryptoAlgorithmEcKeyParams.h" |
| #include "CryptoAlgorithmEcdsaParams.h" |
| #include "CryptoKeyEC.h" |
| #include <JavaScriptCore/JSCJSValueInlines.h> |
| #include <wtf/CrossThreadCopier.h> |
| |
| namespace WebCore { |
| |
| namespace CryptoAlgorithmECDSAInternal { |
| static const char* const ALG256 = "ES256"; |
| static const char* const ALG384 = "ES384"; |
| static const char* const ALG512 = "ES512"; |
| static const char* const P256 = "P-256"; |
| static const char* const P384 = "P-384"; |
| static const char* const P521 = "P-521"; |
| } |
| |
| Ref<CryptoAlgorithm> CryptoAlgorithmECDSA::create() |
| { |
| return adoptRef(*new CryptoAlgorithmECDSA); |
| } |
| |
| CryptoAlgorithmIdentifier CryptoAlgorithmECDSA::identifier() const |
| { |
| return s_identifier; |
| } |
| |
| void CryptoAlgorithmECDSA::sign(const CryptoAlgorithmParameters& parameters, Ref<CryptoKey>&& key, Vector<uint8_t>&& data, 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<CryptoAlgorithmEcdsaParams>(parameters)), key = WTFMove(key), data = WTFMove(data)] { |
| return platformSign(parameters, downcast<CryptoKeyEC>(key.get()), data); |
| }); |
| } |
| |
| void CryptoAlgorithmECDSA::verify(const CryptoAlgorithmParameters& parameters, Ref<CryptoKey>&& key, Vector<uint8_t>&& signature, Vector<uint8_t>&& data, BoolCallback&& 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<CryptoAlgorithmEcdsaParams>(parameters)), key = WTFMove(key), signature = WTFMove(signature), data = WTFMove(data)] { |
| return platformVerify(parameters, downcast<CryptoKeyEC>(key.get()), signature, data); |
| }); |
| } |
| |
| void CryptoAlgorithmECDSA::generateKey(const CryptoAlgorithmParameters& parameters, bool extractable, CryptoKeyUsageBitmap usages, KeyOrKeyPairCallback&& callback, ExceptionCallback&& exceptionCallback, ScriptExecutionContext&) |
| { |
| const auto& ecParameters = downcast<CryptoAlgorithmEcKeyParams>(parameters); |
| |
| if (usages & (CryptoKeyUsageEncrypt | CryptoKeyUsageDecrypt | CryptoKeyUsageDeriveKey | CryptoKeyUsageDeriveBits | CryptoKeyUsageWrapKey | CryptoKeyUsageUnwrapKey)) { |
| exceptionCallback(SyntaxError); |
| return; |
| } |
| |
| auto result = CryptoKeyEC::generatePair(CryptoAlgorithmIdentifier::ECDSA, ecParameters.namedCurve, extractable, usages); |
| if (result.hasException()) { |
| exceptionCallback(result.releaseException().code()); |
| return; |
| } |
| |
| auto pair = result.releaseReturnValue(); |
| pair.publicKey->setUsagesBitmap(pair.publicKey->usagesBitmap() & CryptoKeyUsageVerify); |
| pair.privateKey->setUsagesBitmap(pair.privateKey->usagesBitmap() & CryptoKeyUsageSign); |
| callback(WTFMove(pair)); |
| } |
| |
| void CryptoAlgorithmECDSA::importKey(CryptoKeyFormat format, KeyData&& data, const CryptoAlgorithmParameters& parameters, bool extractable, CryptoKeyUsageBitmap usages, KeyCallback&& callback, ExceptionCallback&& exceptionCallback) |
| { |
| using namespace CryptoAlgorithmECDSAInternal; |
| const auto& ecParameters = downcast<CryptoAlgorithmEcKeyParams>(parameters); |
| |
| RefPtr<CryptoKeyEC> result; |
| switch (format) { |
| case CryptoKeyFormat::Jwk: { |
| JsonWebKey key = WTFMove(std::get<JsonWebKey>(data)); |
| |
| if (usages && ((!key.d.isNull() && (usages ^ CryptoKeyUsageSign)) || (key.d.isNull() && (usages ^ CryptoKeyUsageVerify)))) { |
| exceptionCallback(SyntaxError); |
| return; |
| } |
| if (usages && !key.use.isNull() && key.use != "sig") { |
| exceptionCallback(DataError); |
| return; |
| } |
| |
| bool isMatched = false; |
| if (key.crv == P256) |
| isMatched = key.alg.isNull() || key.alg == ALG256; |
| if (key.crv == P384) |
| isMatched = key.alg.isNull() || key.alg == ALG384; |
| if (key.crv == P521) |
| isMatched = key.alg.isNull() || key.alg == ALG512; |
| if (!isMatched) { |
| exceptionCallback(DataError); |
| return; |
| } |
| |
| result = CryptoKeyEC::importJwk(ecParameters.identifier, ecParameters.namedCurve, WTFMove(key), extractable, usages); |
| break; |
| } |
| case CryptoKeyFormat::Raw: |
| if (usages && (usages ^ CryptoKeyUsageVerify)) { |
| exceptionCallback(SyntaxError); |
| return; |
| } |
| result = CryptoKeyEC::importRaw(ecParameters.identifier, ecParameters.namedCurve, WTFMove(std::get<Vector<uint8_t>>(data)), extractable, usages); |
| break; |
| case CryptoKeyFormat::Spki: |
| if (usages && (usages ^ CryptoKeyUsageVerify)) { |
| exceptionCallback(SyntaxError); |
| return; |
| } |
| result = CryptoKeyEC::importSpki(ecParameters.identifier, ecParameters.namedCurve, WTFMove(std::get<Vector<uint8_t>>(data)), extractable, usages); |
| break; |
| case CryptoKeyFormat::Pkcs8: |
| if (usages && (usages ^ CryptoKeyUsageSign)) { |
| exceptionCallback(SyntaxError); |
| return; |
| } |
| result = CryptoKeyEC::importPkcs8(ecParameters.identifier, ecParameters.namedCurve, WTFMove(std::get<Vector<uint8_t>>(data)), extractable, usages); |
| break; |
| } |
| if (!result) { |
| exceptionCallback(DataError); |
| return; |
| } |
| |
| callback(*result); |
| } |
| |
| void CryptoAlgorithmECDSA::exportKey(CryptoKeyFormat format, Ref<CryptoKey>&& key, KeyDataCallback&& callback, ExceptionCallback&& exceptionCallback) |
| { |
| const auto& ecKey = downcast<CryptoKeyEC>(key.get()); |
| |
| if (!ecKey.keySizeInBits()) { |
| exceptionCallback(OperationError); |
| return; |
| } |
| |
| KeyData result; |
| switch (format) { |
| case CryptoKeyFormat::Jwk: { |
| auto jwk = ecKey.exportJwk(); |
| if (jwk.hasException()) { |
| exceptionCallback(jwk.releaseException().code()); |
| return; |
| } |
| result = jwk.releaseReturnValue(); |
| break; |
| } |
| case CryptoKeyFormat::Raw: { |
| auto raw = ecKey.exportRaw(); |
| if (raw.hasException()) { |
| exceptionCallback(raw.releaseException().code()); |
| return; |
| } |
| result = raw.releaseReturnValue(); |
| break; |
| } |
| case CryptoKeyFormat::Spki: { |
| auto spki = ecKey.exportSpki(); |
| if (spki.hasException()) { |
| exceptionCallback(spki.releaseException().code()); |
| return; |
| } |
| result = spki.releaseReturnValue(); |
| break; |
| } |
| case CryptoKeyFormat::Pkcs8: { |
| auto pkcs8 = ecKey.exportPkcs8(); |
| if (pkcs8.hasException()) { |
| exceptionCallback(pkcs8.releaseException().code()); |
| return; |
| } |
| result = pkcs8.releaseReturnValue(); |
| break; |
| } |
| } |
| |
| callback(format, WTFMove(result)); |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WEB_CRYPTO) |
