--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcrypto/source/asymmetric/rsaverifier.cpp	Wed Jul 08 11:25:26 2009 +0100
@@ -0,0 +1,113 @@
+/*
+* Copyright (c) 2003-2009 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 <asymmetric.h>
+#include <asymmetrickeys.h>
+#include <bigint.h>
+#include <securityerr.h>
+#include "rsafunction.h"
+
+/* CRSAVerifier */
+
+EXPORT_C CRSAVerifier::CRSAVerifier(void)
+	{
+	}
+
+EXPORT_C TBool CRSAVerifier::VerifyL(const TDesC8& aInput, 
+	const CRSASignature& aSignature) const
+	{
+	TBool retval = EFalse;
+	HBufC8* inverseSign = InverseSignLC(aSignature);
+	
+	if (inverseSign->Compare(aInput)==0)
+		{
+		retval = ETrue;
+		}
+	CleanupStack::PopAndDestroy(inverseSign);
+	return retval;	
+	}
+
+/* CRSAPKCS1v15Verifier */
+EXPORT_C CRSAPKCS1v15Verifier* CRSAPKCS1v15Verifier::NewL( 
+	const CRSAPublicKey& aKey)
+	{
+	CRSAPKCS1v15Verifier* self = NewLC(aKey);
+	CleanupStack::Pop();
+	return self;
+	}
+
+EXPORT_C CRSAPKCS1v15Verifier* CRSAPKCS1v15Verifier::NewLC(
+	const CRSAPublicKey& aKey)
+	{
+	CRSAPKCS1v15Verifier* self = new(ELeave) CRSAPKCS1v15Verifier(aKey);
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	return self;
+	}
+
+TInt CRSAPKCS1v15Verifier::MaxInputLength(void) const
+	{
+	return MaxOutputLength() - iPadding->MinPaddingLength();	
+	}
+
+TInt CRSAPKCS1v15Verifier::MaxOutputLength(void) const
+	{
+	return iPublicKey.N().ByteCount();
+	}
+
+HBufC8* CRSAPKCS1v15Verifier::InverseSignLC(
+	const CRSASignature& aSignature) const
+	{
+	HBufC8* unpaddedBuf = HBufC8::NewMaxLC(MaxOutputLength());
+	TPtr8 unpaddedHash = unpaddedBuf->Des();
+
+	RInteger input = RInteger::NewL(aSignature.S());
+	CleanupStack::PushL(input);
+	RInteger output;
+
+	RSAFunction::VerifyL(iPublicKey, input, output);
+	CleanupStack::PushL(output);
+
+	TPtrC8 paddedHashPtr = *(output.BufferLC());
+	
+	iPadding->UnPadL(paddedHashPtr, unpaddedHash);
+	CleanupStack::PopAndDestroy(3, &input); //BufferLC, output, input
+	return unpaddedBuf;
+	}
+
+CRSAPKCS1v15Verifier::CRSAPKCS1v15Verifier(const CRSAPublicKey& aKey)
+	: iPublicKey(aKey)
+	{
+	}
+
+void CRSAPKCS1v15Verifier::ConstructL(void)
+	{
+	iPadding = CPaddingPKCS1Signature::NewL(MaxOutputLength());
+
+	// Check if MaxInputLength() makes sense, if not the key length must 
+	// be too small
+	if(MaxInputLength() <= 0)
+		{
+		User::Leave(KErrKeySize);
+		}
+	}
+
+CRSAPKCS1v15Verifier::~CRSAPKCS1v15Verifier(void)
+	{
+	delete iPadding;
+	}