/*+
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* Copyright (c) 2005-2009 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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* (c) 1999-2003 Symbian Ltd. All rights reserved+
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*+
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*/+
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+
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+
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/**+
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 @file+
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*/+
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+
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#include <e32std.h>+
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#include <hash.h>+
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#define EXPANDLOOP+
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+
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EXPORT_C CMessageDigest::CMessageDigest(void):CBase()+
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{}+
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+
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EXPORT_C CMessageDigest::CMessageDigest(const CMessageDigest& /*aMD*/):CBase()+
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{}+
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+
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EXPORT_C CMessageDigest::~CMessageDigest(void)+
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{}+
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+
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/* Note that the shifts here are NOT guaranteed to work if s == 0, and it is+
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 * assumed in R() (and hence in all inline) that a is unsigned. */+
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// CMD_R - rotate a left by n bits; the main bottleneck of the algorithm +
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// implementation+
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/*+
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C++ version compiles to:+
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+
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CMD_R__FUiUi:+
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	add	r3, r0, #0+
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	lsl	r3, r3, r1+
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	mov	r2, #32+
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	sub	r2, r2, r1+
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	lsr	r0, r0, r2+
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	add	r3, r3, r0+
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	add	r0, r3, #0+
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	bx	lr+
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+
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*/+
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+
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TInt CMessageDigest::GetExtension(TUint aExtensionId, TAny*& a0, TAny* a1)+
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	{+
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	return Extension_(aExtensionId, a0, a1);+
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	}+
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+
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+
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//////////////////////////////////////////////////////////////////+
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//	Factory class to create CMessageDigest derived objects+
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//////////////////////////////////////////////////////////////////+
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EXPORT_C CMessageDigest* CMessageDigestFactory::NewDigestL(CMessageDigest::THashId aHashId)+
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{+
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	CMessageDigest* hash = NULL;+
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	switch (aHashId)+
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	{+
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	case (CMessageDigest::EMD2):+
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		{+
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			hash = CMD2::NewL();+
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			break;+
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		}+
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	case (CMessageDigest::EMD5):+
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		{+
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			hash = CMD5::NewL();+
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			break;+
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		}+
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	case (CMessageDigest::ESHA1):+
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		{+
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			hash = CSHA1::NewL();+
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			break;+
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		}+
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	case (CMessageDigest::EMD4):+
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		{+
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			hash = CMD4::NewL();+
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			break;+
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		}+
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	case (CMessageDigest::ESHA224):+
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		{+
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			hash = CSHA2::NewL(E224Bit);+
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			break;+
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		}+
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	case (CMessageDigest::ESHA256):+
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		{+
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			hash = CSHA2::NewL(E256Bit);+
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			break;+
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		}+
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	case (CMessageDigest::ESHA384):+
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		{+
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			hash = CSHA2::NewL(E384Bit);+
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			break;+
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		}+
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	case (CMessageDigest::ESHA512):+
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		{+
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			hash = CSHA2::NewL(E512Bit);+
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			break;+
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		}+
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	case (CMessageDigest::HMAC):+
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	default:	+
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		User::Leave(KErrNotSupported);+
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	}+
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+
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	return (hash);+
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}+
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+
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EXPORT_C CMessageDigest* CMessageDigestFactory::NewDigestLC(CMessageDigest::THashId aHashId)+
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{+
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	CMessageDigest* hash = CMessageDigestFactory::NewDigestL(aHashId);+
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	CleanupStack::PushL(hash);+
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	return (hash);+
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}+
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+
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EXPORT_C CMessageDigest* CMessageDigestFactory::NewHMACL(CMessageDigest::THashId aHashId, const TDesC8& aKey)+
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{+
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	CMessageDigest* hash = CMessageDigestFactory::NewDigestLC(aHashId);+
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	CMessageDigest* hmac = CHMAC::NewL(aKey, hash);+
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	CleanupStack::Pop(hash);	//	Now owned by hmac+
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	return (hmac);+
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}+
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+
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EXPORT_C CMessageDigest* CMessageDigestFactory::NewHMACLC(CMessageDigest::THashId aHashId, const TDesC8& aKey)+
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{+
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	CMessageDigest* hmac = CMessageDigestFactory::NewHMACL(aHashId, aKey);+
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	CleanupStack::PushL(hmac);+
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	return (hmac);+
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}+
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