crypto/weakcrypto/source/asymmetric/rsadecryptor.cpp
branchRCL_3
changeset 62 a71299154b21
parent 61 641f389e9157
child 63 94225563cd41
--- a/crypto/weakcrypto/source/asymmetric/rsadecryptor.cpp	Tue Aug 31 17:00:08 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,98 +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 <asymmetric.h>
-#include <asymmetrickeys.h>
-#include <bigint.h>
-#include <cryptostrength.h>
-#include <securityerr.h>
-#include <cryptopanic.h>
-#include "rsafunction.h"
-
-/* CRSAPKCS1v15Decryptor */
-
-EXPORT_C CRSAPKCS1v15Decryptor* CRSAPKCS1v15Decryptor::NewL(
-	const CRSAPrivateKey& aKey)
-	{
-	CRSAPKCS1v15Decryptor* self = NewLC(aKey);
-	CleanupStack::Pop(self);
-	return self;
-	}
-
-EXPORT_C CRSAPKCS1v15Decryptor* CRSAPKCS1v15Decryptor::NewLC(
-	const CRSAPrivateKey& aKey)
-	{
-	CRSAPKCS1v15Decryptor* self = new(ELeave) CRSAPKCS1v15Decryptor(aKey);
-	CleanupStack::PushL(self);
-	self->ConstructL();
-	return self;
-	}
-
-TInt CRSAPKCS1v15Decryptor::MaxInputLength(void) const
-	{
-	return iPrivateKey.N().ByteCount();
-	}
-
-TInt CRSAPKCS1v15Decryptor::MaxOutputLength(void) const
-	{
-	return MaxInputLength() - iPadding->MinPaddingLength();
-	}
-
-void CRSAPKCS1v15Decryptor::DecryptL(const TDesC8& aInput, 
-	TDes8& aOutput)const
-	{
-	__ASSERT_DEBUG(aOutput.MaxLength() >= MaxOutputLength(), User::Panic(KCryptoPanic, ECryptoPanicOutputDescriptorOverflow));
-	__ASSERT_DEBUG(aInput.Length() <= MaxInputLength(), User::Panic(KCryptoPanic, ECryptoPanicInputTooLarge));
-
-	RInteger input = RInteger::NewL(aInput);
-	CleanupStack::PushL(input);
-
-	RInteger output;
-
-	RSAFunction::DecryptL(iPrivateKey, input, output);
-	CleanupStack::PushL(output);
-
-    TPtrC8 ptr = *(output.BufferLC());
-    iPadding->UnPadL(ptr, aOutput);
-
-    CleanupStack::PopAndDestroy(3, &input); //BufferLC(), output, input
-	}
-
-CRSAPKCS1v15Decryptor::CRSAPKCS1v15Decryptor(const CRSAPrivateKey& aKey)  
-	: iPrivateKey(aKey)
-	{
-	}
-
-void CRSAPKCS1v15Decryptor::ConstructL(void)  
-	{
-	iPadding = CPaddingPKCS1Encryption::NewL(MaxInputLength());
-
-	// Check if MaxInputLength() makes sense, if not the key length must 
-	// be too small
-	if(MaxOutputLength() <= 0)
-		{
-		User::Leave(KErrKeySize);
-		}
-
-	TCrypto::IsAsymmetricWeakEnoughL(iPrivateKey.N().BitCount());
-	}
-
-CRSAPKCS1v15Decryptor::~CRSAPKCS1v15Decryptor(void)  
-	{
-	delete iPadding;
-	}