--- a/crypto/weakcrypto/source/padding/pkcs7.cpp Tue Aug 31 17:00:08 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,89 +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 <e32base.h>
-#include <padding.h>
-#include <securityerr.h>
-#include <cryptopanic.h>
-
-/* CPaddingPKCS7 */
-EXPORT_C CPaddingPKCS7* CPaddingPKCS7::NewL(TInt aBlockBytes)
- {
- __ASSERT_ALWAYS(aBlockBytes > 0, User::Leave(KErrArgument));
- return new(ELeave)CPaddingPKCS7(aBlockBytes);
- }
-
-EXPORT_C CPaddingPKCS7* CPaddingPKCS7::NewLC(TInt aBlockBytes)
- {
- CPaddingPKCS7* self = CPaddingPKCS7::NewL(aBlockBytes);
- CleanupStack::PushL(self);
- return self;
- }
-
-EXPORT_C CPaddingPKCS7::CPaddingPKCS7(TInt aBlockBytes):CPadding(aBlockBytes)
- {
- }
-
-void CPaddingPKCS7::DoPadL(const TDesC8& aInput,TDes8& aOutput)
- {
- TInt paddingBytes = BlockSize()-(aInput.Length()%BlockSize());
- aOutput.Append(aInput);
- aOutput.SetLength(aOutput.Length()+paddingBytes);
- for (TInt i=1;i<=paddingBytes;i++)
- {
- aOutput[aOutput.Length()-i]=(TUint8)(paddingBytes);
- }
- }
-
-void CPaddingPKCS7::UnPadL(const TDesC8& aInput,TDes8& aOutput)
- {
- TUint inputLen = aInput.Length();
- TUint paddingLen = (TUint)(aInput[inputLen - 1]);
-
- if (paddingLen > inputLen)
- {
- User::Leave(KErrInvalidPadding);
- }
-
- TInt outlen = aInput.Length() - paddingLen;
-
- __ASSERT_DEBUG(aOutput.MaxLength() >= outlen, User::Panic(KCryptoPanic, ECryptoPanicOutputDescriptorOverflow));
-
- aOutput.Append(aInput.Left(outlen));
- for (TInt i=outlen;i<inputLen;i++)
- {
- //All padding bytes must equal the length of padding expected
- if (aInput[i]!=paddingLen)
- {
- User::Leave(KErrInvalidPadding);
- }
- }
- }
-
-TInt CPaddingPKCS7::MinPaddingLength(void) const
- {
- //if aInputBytes is 1 less than the blocksize then we get 1 byte of padding
- return 1;
- }
-
-TInt CPaddingPKCS7::MaxPaddedLength(TInt aInputBytes) const
- {
- TUint padBytes = BlockSize() - (aInputBytes % BlockSize());
- return padBytes + aInputBytes;
- }
-