1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/security/crypto/weakcryptospi/source/hash/hash.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,138 @@
     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 +* (c) 1999-2003 Symbian Ltd. All rights reserved
    1.19 +*
    1.20 +*/
    1.21 +
    1.22 +
    1.23 +/**
    1.24 + @file
    1.25 +*/
    1.26 +
    1.27 +#include <e32std.h>
    1.28 +#include <hash.h>
    1.29 +#define EXPANDLOOP
    1.30 +
    1.31 +EXPORT_C CMessageDigest::CMessageDigest(void):CBase()
    1.32 +{}
    1.33 +
    1.34 +EXPORT_C CMessageDigest::CMessageDigest(const CMessageDigest& /*aMD*/):CBase()
    1.35 +{}
    1.36 +
    1.37 +EXPORT_C CMessageDigest::~CMessageDigest(void)
    1.38 +{}
    1.39 +
    1.40 +/* Note that the shifts here are NOT guaranteed to work if s == 0, and it is
    1.41 + * assumed in R() (and hence in all inline) that a is unsigned. */
    1.42 +// CMD_R - rotate a left by n bits; the main bottleneck of the algorithm 
    1.43 +// implementation
    1.44 +/*
    1.45 +C++ version compiles to:
    1.46 +
    1.47 +CMD_R__FUiUi:
    1.48 +	add	r3, r0, #0
    1.49 +	lsl	r3, r3, r1
    1.50 +	mov	r2, #32
    1.51 +	sub	r2, r2, r1
    1.52 +	lsr	r0, r0, r2
    1.53 +	add	r3, r3, r0
    1.54 +	add	r0, r3, #0
    1.55 +	bx	lr
    1.56 +
    1.57 +*/
    1.58 +
    1.59 +TInt CMessageDigest::GetExtension(TUint aExtensionId, TAny*& a0, TAny* a1)
    1.60 +	{
    1.61 +	return Extension_(aExtensionId, a0, a1);
    1.62 +	}
    1.63 +
    1.64 +
    1.65 +//////////////////////////////////////////////////////////////////
    1.66 +//	Factory class to create CMessageDigest derived objects
    1.67 +//////////////////////////////////////////////////////////////////
    1.68 +EXPORT_C CMessageDigest* CMessageDigestFactory::NewDigestL(CMessageDigest::THashId aHashId)
    1.69 +{
    1.70 +	CMessageDigest* hash = NULL;
    1.71 +	switch (aHashId)
    1.72 +	{
    1.73 +	case (CMessageDigest::EMD2):
    1.74 +		{
    1.75 +			hash = CMD2::NewL();
    1.76 +			break;
    1.77 +		}
    1.78 +	case (CMessageDigest::EMD5):
    1.79 +		{
    1.80 +			hash = CMD5::NewL();
    1.81 +			break;
    1.82 +		}
    1.83 +	case (CMessageDigest::ESHA1):
    1.84 +		{
    1.85 +			hash = CSHA1::NewL();
    1.86 +			break;
    1.87 +		}
    1.88 +	case (CMessageDigest::EMD4):
    1.89 +		{
    1.90 +			hash = CMD4::NewL();
    1.91 +			break;
    1.92 +		}
    1.93 +	case (CMessageDigest::ESHA224):
    1.94 +		{
    1.95 +			hash = CSHA2::NewL(E224Bit);
    1.96 +			break;
    1.97 +		}
    1.98 +	case (CMessageDigest::ESHA256):
    1.99 +		{
   1.100 +			hash = CSHA2::NewL(E256Bit);
   1.101 +			break;
   1.102 +		}
   1.103 +	case (CMessageDigest::ESHA384):
   1.104 +		{
   1.105 +			hash = CSHA2::NewL(E384Bit);
   1.106 +			break;
   1.107 +		}
   1.108 +	case (CMessageDigest::ESHA512):
   1.109 +		{
   1.110 +			hash = CSHA2::NewL(E512Bit);
   1.111 +			break;
   1.112 +		}
   1.113 +	case (CMessageDigest::HMAC):
   1.114 +	default:	
   1.115 +		User::Leave(KErrNotSupported);
   1.116 +	}
   1.117 +
   1.118 +	return (hash);
   1.119 +}
   1.120 +
   1.121 +EXPORT_C CMessageDigest* CMessageDigestFactory::NewDigestLC(CMessageDigest::THashId aHashId)
   1.122 +{
   1.123 +	CMessageDigest* hash = CMessageDigestFactory::NewDigestL(aHashId);
   1.124 +	CleanupStack::PushL(hash);
   1.125 +	return (hash);
   1.126 +}
   1.127 +
   1.128 +EXPORT_C CMessageDigest* CMessageDigestFactory::NewHMACL(CMessageDigest::THashId aHashId, const TDesC8& aKey)
   1.129 +{
   1.130 +	CMessageDigest* hash = CMessageDigestFactory::NewDigestLC(aHashId);
   1.131 +	CMessageDigest* hmac = CHMAC::NewL(aKey, hash);
   1.132 +	CleanupStack::Pop(hash);	//	Now owned by hmac
   1.133 +	return (hmac);
   1.134 +}
   1.135 +
   1.136 +EXPORT_C CMessageDigest* CMessageDigestFactory::NewHMACLC(CMessageDigest::THashId aHashId, const TDesC8& aKey)
   1.137 +{
   1.138 +	CMessageDigest* hmac = CMessageDigestFactory::NewHMACL(aHashId, aKey);
   1.139 +	CleanupStack::PushL(hmac);
   1.140 +	return (hmac);
   1.141 +}