gecko-dev/dom/crypto/HmacKeyAlgorithm.h

73 lines
2.0 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/. */
#ifndef mozilla_dom_HmacKeyAlgorithm_h
#define mozilla_dom_HmacKeyAlgorithm_h
#include "nsCycleCollectionParticipant.h"
#include "nsWrapperCache.h"
#include "nsAutoPtr.h"
#include "mozilla/dom/KeyAlgorithm.h"
#include "mozilla/dom/WebCryptoCommon.h"
#include "js/TypeDecls.h"
namespace mozilla {
namespace dom {
class HmacKeyAlgorithm MOZ_FINAL : public KeyAlgorithm
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HmacKeyAlgorithm, KeyAlgorithm)
HmacKeyAlgorithm(nsIGlobalObject* aGlobal,
const nsString& aName,
uint32_t aLength,
const nsString& aHash)
: KeyAlgorithm(aGlobal, aName)
, mHash(new KeyAlgorithm(aGlobal, aHash))
, mLength(aLength)
{
switch (mHash->Mechanism()) {
case CKM_SHA_1: mMechanism = CKM_SHA_1_HMAC; break;
case CKM_SHA256: mMechanism = CKM_SHA256_HMAC; break;
case CKM_SHA384: mMechanism = CKM_SHA384_HMAC; break;
case CKM_SHA512: mMechanism = CKM_SHA512_HMAC; break;
default: mMechanism = UNKNOWN_CK_MECHANISM; break;
}
}
virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
KeyAlgorithm* Hash() const
{
return mHash;
}
uint32_t Length() const
{
return mLength;
}
virtual nsString ToJwkAlg() const MOZ_OVERRIDE;
virtual bool WriteStructuredClone(JSStructuredCloneWriter* aWriter) const MOZ_OVERRIDE;
static KeyAlgorithm* Create(nsIGlobalObject* aGlobal,
JSStructuredCloneReader* aReader);
protected:
~HmacKeyAlgorithm()
{}
nsRefPtr<KeyAlgorithm> mHash;
uint32_t mLength;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_HmacKeyAlgorithm_h