--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcrypto/source/asymmetric/rsasigner.cpp	Wed Jul 08 11:25:26 2009 +0100
@@ -0,0 +1,105 @@
+/*
+* 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"
+
+/* CRSASigner */
+
+EXPORT_C CRSASigner::CRSASigner(void)
+	{
+	}
+
+/* CRSAPKCS1v15Signer */
+EXPORT_C CRSAPKCS1v15Signer* CRSAPKCS1v15Signer::NewL(
+	const CRSAPrivateKey& aKey)
+	{
+	CRSAPKCS1v15Signer* self = NewLC(aKey);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+EXPORT_C CRSAPKCS1v15Signer* CRSAPKCS1v15Signer::NewLC(
+	const CRSAPrivateKey& aKey)
+	{
+	CRSAPKCS1v15Signer* self = new(ELeave) CRSAPKCS1v15Signer(aKey);
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	return self;
+	}
+
+TInt CRSAPKCS1v15Signer::MaxInputLength(void) const
+	{
+	return MaxOutputLength() - iPadding->MinPaddingLength();	
+	}
+
+TInt CRSAPKCS1v15Signer::MaxOutputLength(void) const
+	{
+	return iPrivateKey.N().ByteCount();	
+	}
+
+CRSASignature* CRSAPKCS1v15Signer::SignL(const TDesC8& aInput) const
+	{
+	HBufC8* buf = HBufC8::NewMaxLC(MaxOutputLength());
+	TPtr8 ptr = buf->Des();
+
+	ptr.SetLength(aInput.Length());
+
+	//The following will panic if aInput is larger than MaxOutputLength() It is
+	//likely that the caller has passed in something that has not been hashed.
+	//This is a programming, and likely a security error, in client code, not a
+	//problem here.
+	iPadding->PadL(aInput, ptr);
+
+	RInteger input = RInteger::NewL(ptr);
+	CleanupStack::PushL(input);
+	RInteger output;
+
+	RSAFunction::SignL(iPrivateKey, input, output);
+	CleanupStack::PushL(output);
+
+	CRSASignature* signature = CRSASignature::NewL(output);
+	CleanupStack::Pop(&output); //output, now owned by CRSASignature
+	CleanupStack::PopAndDestroy(2, buf); //input, buf
+	return signature;
+	}
+
+CRSAPKCS1v15Signer::CRSAPKCS1v15Signer(const CRSAPrivateKey& aKey)  
+	: iPrivateKey(aKey)
+	{
+	}
+
+void CRSAPKCS1v15Signer::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);
+		}
+	}
+
+CRSAPKCS1v15Signer::~CRSAPKCS1v15Signer(void)  
+	{
+	delete iPadding;
+	}