gecko-dev/dom/crypto/RsaHashedKeyAlgorithm.cpp

81 строка
2.7 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/RsaHashedKeyAlgorithm.h"
#include "mozilla/dom/SubtleCryptoBinding.h"
#include "mozilla/dom/WebCryptoCommon.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_INHERITED(RsaHashedKeyAlgorithm, RsaKeyAlgorithm, mHash)
NS_IMPL_ADDREF_INHERITED(RsaHashedKeyAlgorithm, RsaKeyAlgorithm)
NS_IMPL_RELEASE_INHERITED(RsaHashedKeyAlgorithm, RsaKeyAlgorithm)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(RsaHashedKeyAlgorithm)
NS_INTERFACE_MAP_END_INHERITING(RsaKeyAlgorithm)
JSObject*
RsaHashedKeyAlgorithm::WrapObject(JSContext* aCx)
{
return RsaHashedKeyAlgorithmBinding::Wrap(aCx, this);
}
nsString
RsaHashedKeyAlgorithm::ToJwkAlg() const
{
if (mName.EqualsLiteral(WEBCRYPTO_ALG_RSASSA_PKCS1)) {
switch (mHash->Mechanism()) {
case CKM_SHA_1: return NS_LITERAL_STRING(JWK_ALG_RS1);
case CKM_SHA256: return NS_LITERAL_STRING(JWK_ALG_RS256);
case CKM_SHA384: return NS_LITERAL_STRING(JWK_ALG_RS384);
case CKM_SHA512: return NS_LITERAL_STRING(JWK_ALG_RS512);
}
}
if (mName.EqualsLiteral(WEBCRYPTO_ALG_RSA_OAEP)) {
switch(mHash->Mechanism()) {
case CKM_SHA_1: return NS_LITERAL_STRING(JWK_ALG_RSA_OAEP);
case CKM_SHA256: return NS_LITERAL_STRING(JWK_ALG_RSA_OAEP_256);
case CKM_SHA384: return NS_LITERAL_STRING(JWK_ALG_RSA_OAEP_256);
case CKM_SHA512: return NS_LITERAL_STRING(JWK_ALG_RSA_OAEP_512);
}
}
return nsString();
}
bool
RsaHashedKeyAlgorithm::WriteStructuredClone(JSStructuredCloneWriter* aWriter) const
{
nsString hashName;
mHash->GetName(hashName);
return JS_WriteUint32Pair(aWriter, SCTAG_RSAHASHEDKEYALG, 0) &&
JS_WriteUint32Pair(aWriter, mModulusLength, 0) &&
WriteBuffer(aWriter, mPublicExponent) &&
WriteString(aWriter, hashName) &&
WriteString(aWriter, mName);
}
KeyAlgorithm*
RsaHashedKeyAlgorithm::Create(nsIGlobalObject* aGlobal, JSStructuredCloneReader* aReader) {
uint32_t modulusLength, zero;
CryptoBuffer publicExponent;
nsString name, hash;
bool read = JS_ReadUint32Pair(aReader, &modulusLength, &zero) &&
ReadBuffer(aReader, publicExponent) &&
ReadString(aReader, hash) &&
ReadString(aReader, name);
if (!read) {
return nullptr;
}
return new RsaHashedKeyAlgorithm(aGlobal, name, modulusLength, publicExponent, hash);
}
} // namespace dom
} // namespace mozilla