cryptoservices/certificateandkeymgmt/asn1/nulldec.cpp
author Santosh Patil <santosh.v.patil@nokia.com>
Wed, 08 Jul 2009 11:25:26 +0100
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child 8 35751d3474b7
permissions -rw-r--r--
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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/*
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* Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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* This file contains the implementation of the ASN1 Null class.
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*
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*/
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#include "asn1dec.h"
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EXPORT_C TASN1DecNull::TASN1DecNull(void)
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	{
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	}
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EXPORT_C void TASN1DecNull::DecodeDERL(const TDesC8& aSource,TInt& aPos)
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	{
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	TPtrC8 Source=aSource.Mid(aPos);
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	TASN1DecGeneric gen(Source);
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	gen.InitL();
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	aPos+=gen.LengthDER();
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	DecodeDERL(gen);
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	}
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EXPORT_C void TASN1DecNull::DecodeDERL(const TASN1DecGeneric& aSource)
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	{
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	TPtrC8 contents(aSource.Encoding());
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	if ((contents.Length() != 2)	||
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		(contents[1] & 0xff)		||
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		(!(contents[0] & 0x05)))
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		{
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		User::Leave(KErrArgument);
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		}
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	}