ScriptPromise SubtleCrypto::importKey(ScriptState* scriptState, const String& rawFormat, const ArrayPiece& keyData, const Dictionary& rawAlgorithm, bool extractable, const Vector<String>& rawKeyUsages)
{
RefPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
if (!ensureNotNull(keyData, "keyData", result.get()))
return promise;
blink::WebCryptoKeyFormat format;
if (!Key::parseFormat(rawFormat, format, result.get()))
return promise;
if (format == blink::WebCryptoKeyFormatJwk) {
result->completeWithError(blink::WebCryptoErrorTypeData, "Key data must be an object for JWK import");
return promise;
}
blink::WebCryptoKeyUsageMask keyUsages;
if (!Key::parseUsageMask(rawKeyUsages, keyUsages, result.get()))
return promise;
blink::WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, blink::WebCryptoOperationImportKey, algorithm, result.get()))
return promise;
blink::Platform::current()->crypto()->importKey(format, keyData.bytes(), keyData.byteLength(), algorithm, extractable, keyUsages, result->result());
return promise;
}
ScriptPromise SubtleCrypto::deriveKey(ScriptState* scriptState, const AlgorithmIdentifier& rawAlgorithm, CryptoKey* baseKey, const AlgorithmIdentifier& rawDerivedKeyType, bool extractable, const Vector<String>& rawKeyUsages)
{
RefPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
WebCryptoKeyUsageMask keyUsages;
if (!CryptoKey::parseUsageMask(rawKeyUsages, keyUsages, result.get()))
return promise;
WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, WebCryptoOperationDeriveBits, algorithm, result.get()))
return promise;
if (!baseKey->canBeUsedForAlgorithm(algorithm, WebCryptoKeyUsageDeriveKey, result.get()))
return promise;
WebCryptoAlgorithm importAlgorithm;
if (!parseAlgorithm(rawDerivedKeyType, WebCryptoOperationImportKey, importAlgorithm, result.get()))
return promise;
WebCryptoAlgorithm keyLengthAlgorithm;
if (!parseAlgorithm(rawDerivedKeyType, WebCryptoOperationGetKeyLength, keyLengthAlgorithm, result.get()))
return promise;
histogramAlgorithmAndKey(scriptState->executionContext(), algorithm, baseKey->key());
histogramAlgorithm(scriptState->executionContext(), importAlgorithm);
Platform::current()->crypto()->deriveKey(algorithm, baseKey->key(), importAlgorithm, keyLengthAlgorithm, extractable, keyUsages, result->result());
return promise;
}
ScriptPromise SubtleCrypto::unwrapKey(ScriptState* scriptState, const String& rawFormat, const DOMArrayPiece& wrappedKey, CryptoKey* unwrappingKey, const AlgorithmIdentifier& rawUnwrapAlgorithm, const AlgorithmIdentifier& rawUnwrappedKeyAlgorithm, bool extractable, const Vector<String>& rawKeyUsages)
{
RefPtrWillBeRawPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
WebCryptoKeyFormat format;
if (!CryptoKey::parseFormat(rawFormat, format, result.get()))
return promise;
WebCryptoKeyUsageMask keyUsages;
if (!CryptoKey::parseUsageMask(rawKeyUsages, keyUsages, result.get()))
return promise;
WebCryptoAlgorithm unwrapAlgorithm;
if (!parseAlgorithm(rawUnwrapAlgorithm, WebCryptoOperationUnwrapKey, unwrapAlgorithm, result.get()))
return promise;
WebCryptoAlgorithm unwrappedKeyAlgorithm;
if (!parseAlgorithm(rawUnwrappedKeyAlgorithm, WebCryptoOperationImportKey, unwrappedKeyAlgorithm, result.get()))
return promise;
if (!unwrappingKey->canBeUsedForAlgorithm(unwrapAlgorithm, WebCryptoKeyUsageUnwrapKey, result.get()))
return promise;
histogramAlgorithmAndKey(scriptState->executionContext(), unwrapAlgorithm, unwrappingKey->key());
histogramAlgorithm(scriptState->executionContext(), unwrappedKeyAlgorithm);
Platform::current()->crypto()->unwrapKey(format, wrappedKey.bytes(), wrappedKey.byteLength(), unwrappingKey->key(), unwrapAlgorithm, unwrappedKeyAlgorithm, extractable, keyUsages, result->result());
return promise;
}
ScriptPromise SubtleCrypto::wrapKey(ScriptState* scriptState, const String& rawFormat, Key* key, Key* wrappingKey, const Dictionary& rawWrapAlgorithm)
{
RefPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
if (!ensureNotNull(key, "key", result.get()))
return promise;
if (!ensureNotNull(wrappingKey, "wrappingKey", result.get()))
return promise;
blink::WebCryptoKeyFormat format;
if (!Key::parseFormat(rawFormat, format, result.get()))
return promise;
blink::WebCryptoAlgorithm wrapAlgorithm;
if (!parseAlgorithm(rawWrapAlgorithm, blink::WebCryptoOperationWrapKey, wrapAlgorithm, result.get()))
return promise;
if (!key->extractable()) {
result->completeWithError(blink::WebCryptoErrorTypeInvalidAccess, "key is not extractable");
return promise;
}
if (!wrappingKey->canBeUsedForAlgorithm(wrapAlgorithm, blink::WebCryptoOperationWrapKey, result.get()))
return promise;
blink::Platform::current()->crypto()->wrapKey(format, key->key(), wrappingKey->key(), wrapAlgorithm, result->result());
return promise;
}
ScriptPromise SubtleCrypto::wrapKey(ScriptState* scriptState, const String& rawFormat, CryptoKey* key, CryptoKey* wrappingKey, const AlgorithmIdentifier& rawWrapAlgorithm)
{
RefPtrWillBeRawPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
WebCryptoKeyFormat format;
if (!CryptoKey::parseFormat(rawFormat, format, result.get()))
return promise;
WebCryptoAlgorithm wrapAlgorithm;
if (!parseAlgorithm(rawWrapAlgorithm, WebCryptoOperationWrapKey, wrapAlgorithm, result.get()))
return promise;
if (!key->extractable()) {
result->completeWithError(WebCryptoErrorTypeInvalidAccess, "key is not extractable");
return promise;
}
if (!wrappingKey->canBeUsedForAlgorithm(wrapAlgorithm, WebCryptoKeyUsageWrapKey, result.get()))
return promise;
histogramAlgorithmAndKey(scriptState->executionContext(), wrapAlgorithm, wrappingKey->key());
histogramKey(scriptState->executionContext(), key->key());
Platform::current()->crypto()->wrapKey(format, key->key(), wrappingKey->key(), wrapAlgorithm, result->result());
return promise;
}
ScriptPromise SubtleCrypto::unwrapKey(ScriptState* scriptState, const String& rawFormat, const ArrayPiece& wrappedKey, Key* unwrappingKey, const Dictionary& rawUnwrapAlgorithm, const Dictionary& rawUnwrappedKeyAlgorithm, bool extractable, const Vector<String>& rawKeyUsages)
{
RefPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
if (!ensureNotNull(wrappedKey, "wrappedKey", result.get()))
return promise;
if (!ensureNotNull(unwrappingKey, "unwrappingKey", result.get()))
return promise;
blink::WebCryptoKeyFormat format;
if (!Key::parseFormat(rawFormat, format, result.get()))
return promise;
blink::WebCryptoKeyUsageMask keyUsages;
if (!Key::parseUsageMask(rawKeyUsages, keyUsages, result.get()))
return promise;
blink::WebCryptoAlgorithm unwrapAlgorithm;
if (!parseAlgorithm(rawUnwrapAlgorithm, blink::WebCryptoOperationUnwrapKey, unwrapAlgorithm, result.get()))
return promise;
blink::WebCryptoAlgorithm unwrappedKeyAlgorithm;
if (!parseAlgorithm(rawUnwrappedKeyAlgorithm, blink::WebCryptoOperationImportKey, unwrappedKeyAlgorithm, result.get()))
return promise;
if (!unwrappingKey->canBeUsedForAlgorithm(unwrapAlgorithm, blink::WebCryptoOperationUnwrapKey, result.get()))
return promise;
blink::Platform::current()->crypto()->unwrapKey(format, wrappedKey.bytes(), wrappedKey.byteLength(), unwrappingKey->key(), unwrapAlgorithm, unwrappedKeyAlgorithm, extractable, keyUsages, result->result());
return promise;
}
ScriptPromise SubtleCrypto::importKey(ScriptState* scriptState, const String& rawFormat, const Dictionary& keyData, const Dictionary& rawAlgorithm, bool extractable, const Vector<String>& rawKeyUsages)
{
RefPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
blink::WebCryptoKeyFormat format;
if (!Key::parseFormat(rawFormat, format, result.get()))
return promise;
blink::WebCryptoKeyUsageMask keyUsages;
if (!Key::parseUsageMask(rawKeyUsages, keyUsages, result.get()))
return promise;
if (format != blink::WebCryptoKeyFormatJwk) {
result->completeWithError(blink::WebCryptoErrorTypeData, "Key data must be a buffer for non-JWK formats");
return promise;
}
blink::WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, blink::WebCryptoOperationImportKey, algorithm, result.get()))
return promise;
CString jsonUtf8;
if (!copyJwkDictionaryToJson(keyData, jsonUtf8, result.get()))
return promise;
blink::Platform::current()->crypto()->importKey(format, reinterpret_cast<const unsigned char*>(jsonUtf8.data()), jsonUtf8.length(), algorithm, extractable, keyUsages, result->result());
return promise;
}
ScriptPromise SubtleCrypto::importKey(ScriptState* scriptState, const String& rawFormat, const ArrayBufferOrArrayBufferViewOrDictionary& keyData, const AlgorithmIdentifier& rawAlgorithm, bool extractable, const Vector<String>& rawKeyUsages)
{
RefPtrWillBeRawPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
WebCryptoKeyFormat format;
if (!CryptoKey::parseFormat(rawFormat, format, result.get()))
return promise;
if (keyData.isDictionary()) {
if (format != WebCryptoKeyFormatJwk) {
result->completeWithError(WebCryptoErrorTypeData, "Key data must be a buffer for non-JWK formats");
return promise;
}
} else if (format == WebCryptoKeyFormatJwk) {
result->completeWithError(WebCryptoErrorTypeData, "Key data must be an object for JWK import");
return promise;
}
WebCryptoKeyUsageMask keyUsages;
if (!CryptoKey::parseUsageMask(rawKeyUsages, keyUsages, result.get()))
return promise;
WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, WebCryptoOperationImportKey, algorithm, result.get()))
return promise;
const unsigned char* ptr = nullptr;
unsigned len = 0;
CString jsonUtf8;
if (keyData.isArrayBuffer()) {
ptr = static_cast<const unsigned char*>(keyData.getAsArrayBuffer()->data());
len = keyData.getAsArrayBuffer()->byteLength();
} else if (keyData.isArrayBufferView()) {
ptr = static_cast<const unsigned char*>(keyData.getAsArrayBufferView()->baseAddress());
len = keyData.getAsArrayBufferView()->byteLength();
} else if (keyData.isDictionary()) {
if (!copyJwkDictionaryToJson(keyData.getAsDictionary(), jsonUtf8, result.get()))
return promise;
ptr = reinterpret_cast<const unsigned char*>(jsonUtf8.data());
len = jsonUtf8.length();
}
histogramAlgorithm(scriptState->executionContext(), algorithm);
Platform::current()->crypto()->importKey(format, ptr, len, algorithm, extractable, keyUsages, result->result());
return promise;
}
static ScriptPromise startCryptoOperation(ScriptState* scriptState, const Dictionary& rawAlgorithm, Key* key, blink::WebCryptoOperation operationType, const ArrayPiece& signature, const ArrayPiece& dataBuffer)
{
RefPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
bool requiresKey = operationType != blink::WebCryptoOperationDigest;
if (requiresKey && !ensureNotNull(key, "key", result.get()))
return promise;
if (operationType == blink::WebCryptoOperationVerify && !ensureNotNull(signature, "signature", result.get()))
return promise;
if (!ensureNotNull(dataBuffer, "dataBuffer", result.get()))
return promise;
blink::WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, operationType, algorithm, result.get()))
return promise;
if (requiresKey && !key->canBeUsedForAlgorithm(algorithm, operationType, result.get()))
return promise;
const unsigned char* data = dataBuffer.bytes();
unsigned dataSize = dataBuffer.byteLength();
switch (operationType) {
case blink::WebCryptoOperationEncrypt:
blink::Platform::current()->crypto()->encrypt(algorithm, key->key(), data, dataSize, result->result());
break;
case blink::WebCryptoOperationDecrypt:
blink::Platform::current()->crypto()->decrypt(algorithm, key->key(), data, dataSize, result->result());
break;
case blink::WebCryptoOperationSign:
blink::Platform::current()->crypto()->sign(algorithm, key->key(), data, dataSize, result->result());
break;
case blink::WebCryptoOperationVerify:
blink::Platform::current()->crypto()->verifySignature(algorithm, key->key(), signature.bytes(), signature.byteLength(), data, dataSize, result->result());
break;
case blink::WebCryptoOperationDigest:
blink::Platform::current()->crypto()->digest(algorithm, data, dataSize, result->result());
break;
default:
ASSERT_NOT_REACHED();
return ScriptPromise();
}
return promise;
}
ScriptPromise SubtleCrypto::digest(ScriptState* scriptState, const AlgorithmIdentifier& rawAlgorithm, const DOMArrayPiece& data)
{
RefPtrWillBeRawPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, WebCryptoOperationDigest, algorithm, result.get()))
return promise;
histogramAlgorithm(scriptState->executionContext(), algorithm);
Platform::current()->crypto()->digest(algorithm, data.bytes(), data.byteLength(), result->result());
return promise;
}
ScriptPromise SubtleCrypto::generateKey(ScriptState* scriptState, const Dictionary& rawAlgorithm, bool extractable, const Vector<String>& rawKeyUsages)
{
RefPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
blink::WebCryptoKeyUsageMask keyUsages;
if (!Key::parseUsageMask(rawKeyUsages, keyUsages, result.get()))
return promise;
blink::WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, blink::WebCryptoOperationGenerateKey, algorithm, result.get()))
return promise;
blink::Platform::current()->crypto()->generateKey(algorithm, extractable, keyUsages, result->result());
return promise;
}
ScriptPromise SubtleCrypto::verifySignature(ScriptState* scriptState, const AlgorithmIdentifier& rawAlgorithm, CryptoKey* key, const DOMArrayPiece& signature, const DOMArrayPiece& data)
{
RefPtrWillBeRawPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, WebCryptoOperationVerify, algorithm, result.get()))
return promise;
if (!key->canBeUsedForAlgorithm(algorithm, WebCryptoKeyUsageVerify, result.get()))
return promise;
histogramAlgorithmAndKey(scriptState->executionContext(), algorithm, key->key());
Platform::current()->crypto()->verifySignature(algorithm, key->key(), signature.bytes(), signature.byteLength(), data.bytes(), data.byteLength(), result->result());
return promise;
}
ScriptPromise SubtleCrypto::deriveBits(ScriptState* scriptState, const AlgorithmIdentifier& rawAlgorithm, CryptoKey* baseKey, unsigned lengthBits)
{
RefPtrWillBeRawPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, WebCryptoOperationDeriveBits, algorithm, result.get()))
return promise;
if (!baseKey->canBeUsedForAlgorithm(algorithm, WebCryptoKeyUsageDeriveBits, result.get()))
return promise;
histogramAlgorithmAndKey(scriptState->executionContext(), algorithm, baseKey->key());
Platform::current()->crypto()->deriveBits(algorithm, baseKey->key(), lengthBits, result->result());
return promise;
}
ScriptPromise SubtleCrypto::sign(ScriptState* scriptState, const AlgorithmIdentifier& rawAlgorithm, CryptoKey* key, const DOMArrayPiece& data)
{
CryptoResultImpl* result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result))
return promise;
WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, WebCryptoOperationSign, algorithm, result))
return promise;
if (!key->canBeUsedForAlgorithm(algorithm, WebCryptoKeyUsageSign, result))
return promise;
histogramAlgorithmAndKey(scriptState->executionContext(), algorithm, key->key());
Platform::current()->crypto()->sign(algorithm, key->key(), data.bytes(), data.byteLength(), result->result());
return promise;
}
ScriptPromise SubtleCrypto::generateKey(ScriptState* scriptState, const AlgorithmIdentifier& rawAlgorithm, bool extractable, const Vector<String>& rawKeyUsages)
{
RefPtrWillBeRawPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
WebCryptoKeyUsageMask keyUsages;
if (!CryptoKey::parseUsageMask(rawKeyUsages, keyUsages, result.get()))
return promise;
WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, WebCryptoOperationGenerateKey, algorithm, result.get()))
return promise;
histogramAlgorithm(scriptState->executionContext(), algorithm);
Platform::current()->crypto()->generateKey(algorithm, extractable, keyUsages, result->result());
return promise;
}
ScriptPromise SubtleCrypto::exportKey(ScriptState* scriptState, const String& rawFormat, CryptoKey* key)
{
RefPtrWillBeRawPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
WebCryptoKeyFormat format;
if (!CryptoKey::parseFormat(rawFormat, format, result.get()))
return promise;
if (!key->extractable()) {
result->completeWithError(WebCryptoErrorTypeInvalidAccess, "key is not extractable");
return promise;
}
histogramKey(scriptState->executionContext(), key->key());
Platform::current()->crypto()->exportKey(format, key->key(), result->result());
return promise;
}
ScriptPromise SubtleCrypto::exportKey(ScriptState* scriptState, const String& rawFormat, Key* key)
{
RefPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
if (!ensureNotNull(key, "key", result.get()))
return promise;
blink::WebCryptoKeyFormat format;
if (!Key::parseFormat(rawFormat, format, result.get()))
return promise;
if (!key->extractable()) {
result->completeWithError(blink::WebCryptoErrorTypeInvalidAccess, "key is not extractable");
return promise;
}
blink::Platform::current()->crypto()->exportKey(format, key->key(), result->result());
return promise;
}
