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/*
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* Copyright (c) 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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*
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*/
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#include "cryptospihai.h"
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#include "keys.h"
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#include <e32def.h>
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#include <cryptospi/cryptohashapi.h>
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#include <pbedata.h>
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#include "tcryptotokenhai.h"
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using namespace CryptoSpiHai;
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/**
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* Performs the signing operation.
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*
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* A cryptoSPI plugin uses this, when it does not have access to the
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* actual key.
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*
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* @param aKeyHandle The key handle retrieved from hw crypto
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* token
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* @param aInput The text which has to be signed. This is not being
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* used due to signing logic used in this function.
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* @param aSignature Output param. The cryptoSPI signature.
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*
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* @leave Can leave with all the leave codes present in HAI of
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* reference crypto token implementation.
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*
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* @note This function does not actually implement ECC signing. This
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* function just shows how the private key can be extracted from
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* crypto token hai. This function just returns the private key as
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* output signature. The caller can verify the signature by ensuring
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* that test case has same public and private keys and then comparing
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* the signature with public key.
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*/
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EXPORT_C void CCryptoSpiHai::SignL(TInt aKeyHandle,
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const TDesC8& /*aInput*/, CryptoSpi::CCryptoParams& aSignature)
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{
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MCTToken* token = NULL;
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/**
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* We are dereferencing a NULL pointer below. We need to pass
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* MCTToken here. It is not used currently.
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*/
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CCryptoTokenHai *cryptoTokenHai = CCryptoTokenHai::NewLC(token);
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//Call Crypto Token HAI to get the actual key
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HBufC8* actualKey = NULL;
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cryptoTokenHai->ExportPrivateKeyL(aKeyHandle, actualKey);
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CleanupStack::PushL(actualKey);
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aSignature.AddL(*actualKey, CryptoSpi::KEccKeyTypeUid);
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CleanupStack::PopAndDestroy(actualKey);
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CleanupStack::PopAndDestroy(cryptoTokenHai);
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}
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/**
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* Performs the decryption operation.
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*
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* A cryptoSPI plugin uses this, when it does not have access to the
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* actual key.
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*
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* @param aKeyHandle The key handle retrieved from hw crypto token
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* @param aInput The cipher text. This is not being used due to signing
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* logic used in this function.
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* @param aOutput Output param. The decrypted plain text
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*
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* @leave Can leave with all the leave codes present in HAI of
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* reference crypto token implementation.
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*
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* @note This function does not actually implement ECC decryption. This
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* function just shows how the private key can be extracted from
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* crypto token hai. This function just returns the private key as
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* decrypted text. The caller can verify the decryption by ensuring
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* that test case has same public and private keys and then comparing
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* the decrypted text with public key.
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*/
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EXPORT_C void CCryptoSpiHai::DecryptL(TInt aKeyHandle,
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const TDesC8& /*aInput*/, TDes8& aOutput)
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{
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MCTToken* token = NULL;
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CCryptoTokenHai *cryptoTokenHai = CCryptoTokenHai::NewLC(token);
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//Call Crypto Token HAI to get the actual key
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HBufC8* actualKey = NULL;
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cryptoTokenHai->ExportPrivateKeyL(aKeyHandle, actualKey);
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CleanupStack::PushL(actualKey);
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aOutput.Copy(*actualKey);
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CleanupStack::PopAndDestroy(actualKey);
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CleanupStack::PopAndDestroy(cryptoTokenHai);
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}
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// End of file
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