1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/security/cryptoservices/certificateandkeymgmt/tasn1/testbitstr.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,117 @@
     1.4 +/*
     1.5 +* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of the License "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description: 
    1.18 +* Implementation for testing bit string encoding/decoding
    1.19 +*
    1.20 +*/
    1.21 +
    1.22 +
    1.23 +#include "testbitstr.h"
    1.24 +#include "tasn1normaltest.h"
    1.25 +#include <asn1enc.h>
    1.26 +#include <asn1dec.h>
    1.27 +
    1.28 +#include <e32cons.h>
    1.29 +
    1.30 +CTestBitStr* CTestBitStr::NewL(CASN1NormalTest &aASN1Action)
    1.31 +	{
    1.32 +	CTestBitStr* test = new (ELeave) CTestBitStr(aASN1Action);
    1.33 +	return test;
    1.34 +	}
    1.35 +
    1.36 +CTestBitStr::CTestBitStr(CASN1NormalTest &aASN1Action) : CTestBase(aASN1Action)
    1.37 +	{
    1.38 +	};
    1.39 +
    1.40 +void CTestBitStr::GetName(TDes& aBuf)
    1.41 +	{
    1.42 +	aBuf.Copy(_L("Test Bit String"));
    1.43 +	}
    1.44 +
    1.45 +TBool CTestBitStr::PerformTestsL(CConsoleBase& aConsole)
    1.46 +	{
    1.47 +	TBool pass = ETrue;
    1.48 +	
    1.49 +	
    1.50 +	// Test the encoding varying length bit strings by encoding 65
    1.51 +	// different bit strings with a single bit set in each position. Position -1
    1.52 +	// indicates the empty bit string.
    1.53 +	for (TInt8 bitNum = -1; bitNum < 64; bitNum++)
    1.54 +		{
    1.55 +		TBuf8<8> bitStr;				
    1.56 +		TUint numOctets;
    1.57 +		
    1.58 +	    if (bitNum >= 0)
    1.59 +	    	{
    1.60 +	    	numOctets = 1 + (bitNum / 8);
    1.61 +	    	}
    1.62 +	    else 
    1.63 +	    	{
    1.64 +	    	numOctets = 0;
    1.65 +	    	}
    1.66 +		
    1.67 +		bitStr.SetLength(numOctets);
    1.68 +		bitStr.FillZ();
    1.69 +				
    1.70 +		TUint8 valToEncode = 0;
    1.71 +		if (bitNum >= 0 )
    1.72 +			{
    1.73 +			// The most significant bit in the most significant byte is bit zero
    1.74 +			valToEncode = (TUint8) (1 << (7 - (bitNum % 8)));
    1.75 +			bitStr[bitNum / 8] = valToEncode;
    1.76 +			}
    1.77 +			
    1.78 +		// Get the encoder and decoder
    1.79 +		CASN1EncBitString* encoder = CASN1EncBitString::NewLC(bitStr, bitNum + 1);
    1.80 +		TASN1DecBitString decoder;
    1.81 +
    1.82 +		// Prepare an encode buffer
    1.83 +		TInt totalLength = encoder->LengthDER();
    1.84 +		HBufC8* encodeBuffer = HBufC8::NewMaxLC(totalLength);		
    1.85 +		TPtr8 tEncodeBuf = encodeBuffer->Des();		
    1.86 +	
    1.87 +		// Write into the encode buffer
    1.88 +		TUint writeLength = 0;
    1.89 +		encoder->WriteDERL(tEncodeBuf, writeLength);
    1.90 +
    1.91 +		// Read it out again and check lengths plus encoded value
    1.92 +		TInt readLength = 0;
    1.93 +		HBufC8* decodeBuffer = decoder.ExtractOctetStringL(tEncodeBuf, readLength);
    1.94 +		CleanupStack::PushL(decodeBuffer);
    1.95 +		TPtr8 tDecodeBuf = decodeBuffer->Des();
    1.96 +						
    1.97 +		if (writeLength != STATIC_CAST(TUint, readLength))
    1.98 +			{
    1.99 +			aConsole.Write(_L("ERROR!\n"));
   1.100 +			iASN1Action.ReportProgressL(KErrASN1EncodingError, 1, 1);
   1.101 +			pass = EFalse;			
   1.102 +			}
   1.103 +		else if (bitNum >= 0 && valToEncode != tDecodeBuf[bitNum / 8])
   1.104 +			{
   1.105 +			aConsole.Write(_L("ENCODING ERROR!\n"));
   1.106 +			iASN1Action.ReportProgressL(KErrASN1EncodingError, 1, 1);
   1.107 +			pass = EFalse;			
   1.108 +			}			
   1.109 +		else
   1.110 +			{
   1.111 +			iASN1Action.ReportProgressL(KErrNone, bitNum + 1, 65);
   1.112 +			}	
   1.113 +			
   1.114 +		CleanupStack::PopAndDestroy(3, encoder); // decodeBuffer, encodeBuffer, encoder			
   1.115 +		}
   1.116 +		
   1.117 +	return pass;
   1.118 +	}
   1.119 +
   1.120 +