os/security/crypto/weakcryptospi/source/common/keyidentifierutil.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
     1 /*
     2 * Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
     3 * All rights reserved.
     4 * This component and the accompanying materials are made available
     5 * under the terms of the License "Eclipse Public License v1.0"
     6 * which accompanies this distribution, and is available
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
     8 *
     9 * Initial Contributors:
    10 * Nokia Corporation - initial contribution.
    11 *
    12 * Contributors:
    13 *
    14 * Description: 
    15 *
    16 */
    17 
    18 
    19 #include "keyidentifierutil.h"
    20 #include "hash.h"
    21 #include "asymmetrickeys.h"
    22 
    23 EXPORT_C void KeyIdentifierUtil::RSAKeyIdentifierL(
    24 		const CRSAPublicKey& aKey, TKeyIdentifier& aIdentifier)
    25 	{
    26 	aIdentifier.FillZ();
    27 
    28 	// Generate a hash of the appropriate data (for TKeyIdentifier)	
    29 	const TInteger& keyModulus = aKey.N();
    30 	HBufC8* modulusData = keyModulus.BufferLC();
    31 	CSHA1* sha1 = CSHA1::NewL();
    32 	CleanupStack::PushL(sha1);
    33 	TPtrC8 hash = sha1->Final(*modulusData);
    34 	aIdentifier.Copy(hash);
    35 	CleanupStack::PopAndDestroy(2);	//	sha1, modulusData
    36 	}
    37 
    38 EXPORT_C void KeyIdentifierUtil::DSAKeyIdentifierL(
    39 		const CDSAPublicKey& aKey, TKeyIdentifier& aIdentifier)
    40 	{
    41 	aIdentifier.FillZ();
    42 
    43 	// Generate a hash of the appropriate data (for TKeyIdentifier)	
    44 	const TInteger& Y = aKey.Y();
    45 	HBufC8* YData = Y.BufferLC();					
    46 	CSHA1* sha1 = CSHA1::NewL();
    47 	CleanupStack::PushL(sha1);
    48 	TPtrC8 hash = sha1->Final(*YData);
    49 	aIdentifier.Copy(hash);
    50 	CleanupStack::PopAndDestroy(2);	//	sha1, YData				
    51 	}
    52 
    53 EXPORT_C void KeyIdentifierUtil::DHKeyIdentifierL(
    54 		const RInteger& aKey, TKeyIdentifier& aIdentifier)
    55 	{
    56 	if (aKey.IsZero())
    57 		User::Leave(KErrArgument);
    58 
    59 	aIdentifier.FillZ();
    60 
    61 	// Generate a hash of the appropriate data (for TKeyIdentifier)	
    62 	HBufC8* XData = aKey.BufferLC();								
    63 	CSHA1* sha1 = CSHA1::NewL();
    64 	CleanupStack::PushL(sha1);
    65 	TPtrC8 hash = sha1->Final(*XData);
    66 	aIdentifier.Copy(hash);
    67 	CleanupStack::PopAndDestroy(2);	//	sha1, XData
    68 	}