crypto/weakcryptospi/source/common/keyconverter.cpp
changeset 19 cd501b96611d
child 43 2f10d260163b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcryptospi/source/common/keyconverter.cpp	Fri Nov 06 13:21:00 2009 +0200
@@ -0,0 +1,210 @@
+/*
+* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+
+#include "keyconverter.h"
+#include <cryptospi/cryptoparams.h>
+#include <cryptospi/cryptospidef.h>
+#include "keys.h"
+#include "keypair.h"
+
+using namespace CryptoSpi;
+
+/* CKeyConverter */
+
+CKey* KeyConverter::CreateKeyL(const CDHPrivateKey& aPrivateKey)
+	{
+	/*
+	 * setup key attributes
+	 */
+	TKeyProperty keyProperty;
+	keyProperty.iAlgorithmUid = KDHAgreementUid;
+
+	/*
+	 * extract key parameters from the compatibility dh key object
+	 */
+	CCryptoParams* keyParameters = CCryptoParams::NewLC();
+	keyParameters->AddL(aPrivateKey.N(), KDhKeyParameterNUid);
+	keyParameters->AddL(aPrivateKey.G(), KDhKeyParameterGUid);
+	keyParameters->AddL(aPrivateKey.x(), KDhKeyParameterxUid);
+
+	/*
+	 * create a CKey from the parameters
+	 */
+	CKey* newPrivateKey = CKey::NewL(keyProperty, *keyParameters);
+
+	CleanupStack::PopAndDestroy(1, keyParameters);
+	return newPrivateKey;
+	}
+
+CKey* KeyConverter::CreateKeyL(const CDHPublicKey& aPublicKey)
+	{
+	/*
+	 * setup key attributes
+	 */
+	TKeyProperty keyProperty;
+	keyProperty.iAlgorithmUid = KDHAgreementUid;
+
+	/*
+	 * extract key parameters from the compatibility dh key object
+	 */
+	CCryptoParams* keyParameters = CCryptoParams::NewLC();
+	keyParameters->AddL(aPublicKey.N(), KDhKeyParameterNUid);
+	keyParameters->AddL(aPublicKey.G(), KDhKeyParameterGUid);
+	keyParameters->AddL(aPublicKey.X(), KDhKeyParameterXUid);
+
+	/*
+	 * create a CKey from the parameters
+	 */
+	CKey* newPublicKey = CKey::NewL(keyProperty, *keyParameters);
+
+	CleanupStack::PopAndDestroy(1, keyParameters);
+	return newPublicKey;
+	}
+
+CKey* KeyConverter::CreateKeyL(const CDSAPrivateKey& aPrivateKey)
+	{
+	TKeyProperty keyProperty = {KDsaSignerUid, KNullUid, KDsaPrivateKeyUid, KNonEmbeddedKeyUid};
+
+	CCryptoParams* keyParameters = CCryptoParams::NewLC();
+	keyParameters->AddL(aPrivateKey.P(), KDsaKeyParameterPUid);
+	keyParameters->AddL(aPrivateKey.Q(), KDsaKeyParameterQUid);
+	keyParameters->AddL(aPrivateKey.G(), KDsaKeyParameterGUid);
+	keyParameters->AddL(aPrivateKey.X(), KDsaKeyParameterXUid);
+		
+	CKey* newPrivateKey = CKey::NewL(keyProperty, *keyParameters);
+	CleanupStack::PopAndDestroy(keyParameters);
+	return newPrivateKey;
+	}
+	
+CKey* KeyConverter::CreateKeyL(const CDSAPublicKey& aPublicKey)
+	{
+	TKeyProperty keyProperty = {KDsaSignerUid, KNullUid, KDsaPublicKeyUid, KNonEmbeddedKeyUid};
+
+	CCryptoParams* keyParameters = CCryptoParams::NewLC();
+	keyParameters->AddL(aPublicKey.P(), KDsaKeyParameterPUid);
+	keyParameters->AddL(aPublicKey.Q(), KDsaKeyParameterQUid);
+	keyParameters->AddL(aPublicKey.G(), KDsaKeyParameterGUid);
+	keyParameters->AddL(aPublicKey.Y(), KDsaKeyParameterYUid);
+
+	CKey* newPublicKey = CKey::NewL(keyProperty, *keyParameters);
+	CleanupStack::PopAndDestroy(keyParameters);
+	return newPublicKey;
+	}
+
+// RSA convertors ///////////////////////////////////////////////////////////////////////////
+CKey* KeyConverter::CreateKeyL(const CRSAPrivateKeyCRT& aPrivateKey)
+	{
+	TKeyProperty keyProperty = {KRsaCipherUid,
+		NULL,
+		KRsaPrivateKeyCRTUid,
+		KNonEmbeddedKeyUid };
+
+	CCryptoParams* keyParameters = CCryptoParams::NewLC();
+	keyParameters->AddL(aPrivateKey.N(), KRsaKeyParameterNUid);
+	keyParameters->AddL(aPrivateKey.P(), KRsaKeyParameterPUid);
+	keyParameters->AddL(aPrivateKey.Q(), KRsaKeyParameterQUid);
+	keyParameters->AddL(aPrivateKey.QInv(), KRsaKeyParameterQInvUid);
+	keyParameters->AddL(aPrivateKey.DP(), KRsaKeyParameterDPUid);
+	keyParameters->AddL(aPrivateKey.DQ(), KRsaKeyParameterDQUid);
+		
+	CKey* newPrivateKey = CKey::NewL(keyProperty, *keyParameters);
+	CleanupStack::PopAndDestroy(keyParameters);
+	return newPrivateKey;
+	}
+	
+CKey* KeyConverter::CreateKeyL(const CRSAPrivateKeyStandard& aPrivateKey)
+	{
+	TKeyProperty keyProperty = {KRsaCipherUid,
+		NULL,
+		KRsaPrivateKeyStandardUid,
+		KNonEmbeddedKeyUid };
+
+	CCryptoParams* keyParameters = CCryptoParams::NewLC();
+	keyParameters->AddL(aPrivateKey.N(), KRsaKeyParameterNUid);
+	keyParameters->AddL(aPrivateKey.D(), KRsaKeyParameterDUid);
+		
+	CKey* newPrivateKey = CKey::NewL(keyProperty, *keyParameters);
+	CleanupStack::PopAndDestroy(keyParameters);
+	return newPrivateKey;
+	}
+	
+CKey* KeyConverter::CreateKeyL(const CRSAPublicKey& aPublicKey)
+	{
+	TKeyProperty keyProperty = {KRsaCipherUid,
+		NULL,
+		KRsaPublicKeyUid,
+		KNonEmbeddedKeyUid };
+
+	CCryptoParams* keyParameters = CCryptoParams::NewLC();	
+	keyParameters->AddL(aPublicKey.N(), KRsaKeyParameterNUid);
+	keyParameters->AddL(aPublicKey.E(), KRsaKeyParameterEUid);
+
+	CKey* newPublicKey = CKey::NewL(keyProperty, *keyParameters);
+	CleanupStack::PopAndDestroy(keyParameters);
+	return newPublicKey;
+	}
+
+CKey* KeyConverter::CreateKeyL(const CRSAPrivateKey& aPrivateKey)
+	{
+	// Determine which type of private key
+	if (aPrivateKey.PrivateKeyType() == EStandard)
+		{
+		const CRSAPrivateKeyStandard* stdKey = static_cast<const CRSAPrivateKeyStandard*>(&aPrivateKey);
+		return KeyConverter::CreateKeyL(*stdKey);
+		}
+	else if (aPrivateKey.PrivateKeyType() == EStandardCRT)
+		{
+		const CRSAPrivateKeyCRT* crtKey = static_cast<const CRSAPrivateKeyCRT*>(&aPrivateKey);
+		return KeyConverter::CreateKeyL(*crtKey);
+		}
+	return NULL;  // Keep the compiler happy
+	}
+
+// Methods which are not supported or not exposed out of library can be excluded from the coverage.
+#ifdef _BullseyeCoverage
+#pragma suppress_warnings on
+#pragma BullseyeCoverage off
+#pragma suppress_warnings off
+#endif
+
+CKeyPair* KeyConverter::CreateKeyPairL(const CDSAKeyPair& /*aKeyPair*/)
+	{
+	return NULL;	
+	}
+
+CKeyPair* KeyConverter::CreateKeyPairL(const CRSAKeyPair& aKeyPair)
+	{
+	CKey* newPrivateKey = KeyConverter::CreateKeyL(aKeyPair.PrivateKey());
+	CleanupStack::PushL(newPrivateKey);
+	CKey* newPublicKey = KeyConverter::CreateKeyL(aKeyPair.PublicKey());
+	CleanupStack::PushL(newPublicKey);
+	CKeyPair* newKeyPair = CKeyPair::NewL(newPublicKey, newPrivateKey);
+	CleanupStack::Pop(2, newPrivateKey);
+	return newKeyPair;
+	}
+
+CKeyPair* KeyConverter::CreateKeyPairL(const CDHKeyPair& aKeyPair)
+	{
+	CKey* newPrivateKey = KeyConverter::CreateKeyL(aKeyPair.PrivateKey());
+	CleanupStack::PushL(newPrivateKey);
+	CKey* newPublicKey = KeyConverter::CreateKeyL(aKeyPair.PublicKey());
+	CleanupStack::PushL(newPublicKey);
+	CKeyPair* newKeyPair = CKeyPair::NewL(newPublicKey, newPrivateKey);
+	CleanupStack::Pop(2, newPrivateKey);
+	return newKeyPair;
+	}