--- a/crypto/weakcrypto/source/asymmetric/rsafunction.cpp	Tue Aug 31 17:00:08 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,131 +0,0 @@
-/*
-* 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 <bigint.h>
-#include <asymmetrickeys.h>
-#include "rsafunction.h"
-#include "../bigint/mont.h"
-
-//Public Encrypt
-void RSAFunction::EncryptL(const CRSAPublicKey& aPublicKey, 
-	const TInteger& aInput, RInteger& aOutput)
-	{
-	FunctionL(aPublicKey.N(), aPublicKey.E(), aInput, aOutput);
-	}
-
-//Private Decrypt
-void RSAFunction::DecryptL(const CRSAPrivateKey& aPrivateKey, 
-							const TInteger& aInput, RInteger& aOutput)
-	{
-	if (aPrivateKey.PrivateKeyType()==EStandard)
-		{
-		const CRSAPrivateKeyStandard* stdKey = 
-			static_cast<const CRSAPrivateKeyStandard*>(&aPrivateKey);
-		FunctionL(aPrivateKey.N(), stdKey->D(), aInput, aOutput);
-		}
-	else if (aPrivateKey.PrivateKeyType()==EStandardCRT)
-		{
-		FunctionCRTL(static_cast<const CRSAPrivateKeyCRT&>(aPrivateKey), aInput, 
-			aOutput);
-		}
-	else
-		{
-		User::Leave(KErrNotSupported);
-		}
-	}
-
-//Private Encrypt
-void RSAFunction::SignL(const CRSAPrivateKey& aPrivateKey, 
-	const TInteger& aInput, RInteger& aOutput)
-	{
-	if (aPrivateKey.PrivateKeyType()==EStandard)
-		{
-		const CRSAPrivateKeyStandard* stdKey = 
-			static_cast<const CRSAPrivateKeyStandard*>(&aPrivateKey);
-		FunctionL(aPrivateKey.N(), stdKey->D(), aInput, aOutput);
-		}
-	else if (aPrivateKey.PrivateKeyType()==EStandardCRT)
-		{
-		FunctionCRTL(static_cast<const CRSAPrivateKeyCRT&>(aPrivateKey), aInput, 
-			aOutput);
-		}
-	else
-	{
-		User::Leave(KErrNotSupported);
-	}
-}
-
-//Public Decrypt
-void RSAFunction::VerifyL(const CRSAPublicKey& aPublicKey,
-	const TInteger& aInput, RInteger& aOutput)
-	{
-	FunctionL(aPublicKey.N(), aPublicKey.E(), aInput, aOutput);
-	}
-	
-//The RSA Trapdoor Function
-void RSAFunction::FunctionL(const TInteger& aModulus, const TInteger& aExponent, 
-							 const TInteger& aBase, RInteger& aOutput)
-	{
-	IsInputValidL(aBase, aModulus);
-
-	aOutput = TInteger::ModularExponentiateL(aBase, aExponent, aModulus);
-	}
-
-//The CRT version of the RSA Trapdoor Function
-void RSAFunction::FunctionCRTL(const CRSAPrivateKeyCRT& aPrivateKey,
-								const TInteger& aInput, RInteger& aOutput)
-	{
-	IsInputValidL(aInput, aPrivateKey.N());
-
-	CMontgomeryStructure* montP = CMontgomeryStructure::NewLC(aPrivateKey.P());
-	CMontgomeryStructure* montQ = CMontgomeryStructure::NewLC(aPrivateKey.Q());
-	
-	const TInteger& p = aPrivateKey.P();
-	const TInteger& q = aPrivateKey.Q();
-	const TInteger& u = aPrivateKey.QInv();
-
-	//m1 = c^(dP) mod(p)
-	RInteger inputReduced = aInput.ModuloL(aPrivateKey.P());
-	CleanupStack::PushL(inputReduced);
-	const TInteger& m1 = montP->ExponentiateL(inputReduced, aPrivateKey.DP());
-	CleanupStack::PopAndDestroy(&inputReduced);
-
-	//m2 = c^(dQ) mod(Q)
-	inputReduced = aInput.ModuloL(aPrivateKey.Q());
-	CleanupStack::PushL(inputReduced);
-	const TInteger& m2 = montQ->ExponentiateL(inputReduced, aPrivateKey.DQ());
-	CleanupStack::PopAndDestroy(&inputReduced);
-	
-	//Calculate CRT
-	//h = (m1-m2) qInv mod(p)
-	RInteger h = m1.MinusL(m2);
-	CleanupStack::PushL(h);
-	h *= u;
-	h %= p; 
-
-	//m = m2 + q * h	
-	h *= q;
-	h += m2;
-
-	aOutput = h;
-	CleanupStack::Pop(&h);
-
-	CleanupStack::PopAndDestroy(montQ);
-	CleanupStack::PopAndDestroy(montP);
-	}
-