diff -r 641f389e9157 -r a71299154b21 crypto/weakcrypto/source/bigint/mont.h --- a/crypto/weakcrypto/source/bigint/mont.h Tue Aug 31 17:00:08 2010 +0300 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,59 +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: -* CMontgomeryStructure class implementation -* -*/ - - -/** - @file - @internalComponent -*/ - -#ifndef __MONT_H__ -#define __MONT_H__ - -class TInteger; -class RInteger; - -/** A special representation of integers allowing efficient multiplication - * and exponentiation under special conditions. - * @internalComponent - */ -class CMontgomeryStructure : public CBase - { -public: - static CMontgomeryStructure* NewL(const TInteger& aModulus); - static CMontgomeryStructure* NewLC(const TInteger& aModulus); - ~CMontgomeryStructure(); - const TInteger& ReduceL(const TInteger& aInteger) const; - const TInteger& MultiplyL(const TInteger& aA, const TInteger& aB) const; - const TInteger& ExponentiateL(const TInteger& aBase, const TInteger& aExponent) const; - const TInteger& SquareL(const TInteger& aA) const; -protected: - void DoMultiplyL(TInteger& aResult, const TInteger& aA, const TInteger& aB) const; - void DoSquareL(TInteger& aResult, const TInteger& aA) const; - TInteger& ConvertInL(TInteger& aInteger) const; - TInteger& ConvertOutL(TInteger& aInteger) const; - CMontgomeryStructure(); -private: - void ConstructL(const TInteger& aModulus); - RInteger iModulus; - RInteger iModulusInv; - RInteger iWorkspace; - mutable RInteger iResult; - }; - -#endif // __MONT_H__