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/*
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* Copyright (c) 2007-2010 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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*
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*/
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#include "dsakeypairshim.h"
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#include <cryptospi/cryptokeypairgeneratorapi.h>
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#include <cryptospi/keypair.h>
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#include <cryptospi/cryptoparams.h>
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#include <cryptospi/cryptospidef.h>
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using namespace CryptoSpi;
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/* CDSAKeyPair */
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CDSAKeyPairShim* CDSAKeyPairShim::NewLC(TUint aKeyBits)
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{
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CDSAKeyPairShim* self = new(ELeave) CDSAKeyPairShim();
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CleanupStack::PushL(self);
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self->ConstructL(aKeyBits);
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return self;
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}
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CDSAKeyPairShim::~CDSAKeyPairShim()
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{
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}
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CDSAKeyPairShim::CDSAKeyPairShim()
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{
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}
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void CDSAKeyPairShim::ConstructL(TUint aKeyBits)
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{
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CKeyPairGenerator* keyPairGeneratorImpl=NULL;
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CKeyPairGeneratorFactory::CreateKeyPairGeneratorL(
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keyPairGeneratorImpl,
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KDSAKeyPairGeneratorUid,
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NULL);
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CleanupStack::PushL(keyPairGeneratorImpl);
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// put the DSA parameters into an array
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CCryptoParams* keyParameters = CCryptoParams::NewLC();
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// call the api to create an DSA key pair
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CKeyPair* keyPair = 0;
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keyPairGeneratorImpl->GenerateKeyPairL(aKeyBits, *keyParameters, keyPair);
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CleanupStack::PushL(keyPair);
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//Just to keep BC
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if (keyParameters->IsPresent(KDsaKeyGenerationSeedUid))
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{
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const TDesC8& seed = keyParameters->GetTDesC8L(KDsaKeyGenerationSeedUid);
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TInt counter=keyParameters->GetTIntL(KDsaKeyGenerationCounterUid);
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iPrimeCertificate=CDSAPrimeCertificate::NewL(seed, counter);
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}
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//
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//for compatibility convert the CKeyPair to CDSAPrivateKey and CDSAPublicKey
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//
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// the public key becomes the owner of P,Q,G,Y
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const CKey& publicKey = keyPair->PublicKey();
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RInteger P = RInteger::NewL(publicKey.GetBigIntL(KDsaKeyParameterPUid));
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CleanupClosePushL(P);
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RInteger Q = RInteger::NewL(publicKey.GetBigIntL(KDsaKeyParameterQUid));
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CleanupClosePushL(Q);
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RInteger G = RInteger::NewL(publicKey.GetBigIntL(KDsaKeyParameterGUid));
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CleanupClosePushL(G);
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RInteger Y = RInteger::NewL(publicKey.GetBigIntL(KDsaKeyParameterYUid));
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CleanupClosePushL(Y);
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iPublic = CDSAPublicKey::NewL(P, Q, G, Y);
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CleanupStack::Pop(4, &P); //Y,G,Q,P
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// the private key becomes the owner of P1,Q1,G1,X
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const CKey& privateKey = keyPair->PrivateKey();
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RInteger P1 = RInteger::NewL(privateKey.GetBigIntL(KDsaKeyParameterPUid));
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CleanupClosePushL(P1);
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RInteger Q1 = RInteger::NewL(privateKey.GetBigIntL(KDsaKeyParameterQUid));
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CleanupClosePushL(Q1);
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RInteger G1 = RInteger::NewL(privateKey.GetBigIntL(KDsaKeyParameterGUid));
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CleanupClosePushL(G1);
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RInteger X = RInteger::NewL(privateKey.GetBigIntL(KDsaKeyParameterXUid));
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CleanupClosePushL(X);
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iPrivate = CDSAPrivateKey::NewL(P1, Q1, G1, X);
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CleanupStack::Pop(4, &P1); //X,G1,Q1,P1
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CleanupStack::PopAndDestroy(3, keyPairGeneratorImpl); // keyPair, keyParameters, keyPairGeneratorImpl
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}
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