sl@0: /*
sl@0: * Copyright (c) 2006-2010 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: #include "rsashim.h"
sl@0: #include <cryptospi/cryptoasymmetriccipherapi.h>
sl@0: #include <cryptospi/cryptosignatureapi.h>
sl@0: #include <cryptospi/cryptospidef.h>
sl@0: #include "keyconverter.h"
sl@0: #include <cryptospi/keys.h>
sl@0: 
sl@0: #include "../common/inlines.h"
sl@0: 
sl@0: 
sl@0: using namespace CryptoSpi;
sl@0: 
sl@0: // CRSAPKCS1v15EncryptorShim ////////////////////////////////////////////////////////
sl@0: 
sl@0: CRSAPKCS1v15EncryptorShim* CRSAPKCS1v15EncryptorShim::NewL(const CRSAPublicKey& aKey)
sl@0: 	{
sl@0: 	CRSAPKCS1v15EncryptorShim* self = CRSAPKCS1v15EncryptorShim::NewLC(aKey);
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: CRSAPKCS1v15EncryptorShim* CRSAPKCS1v15EncryptorShim::NewLC(const CRSAPublicKey& aKey)
sl@0: 	{
sl@0: 	CRSAPKCS1v15EncryptorShim* self = new (ELeave) CRSAPKCS1v15EncryptorShim(aKey);
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL(aKey);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: CRSAPKCS1v15EncryptorShim::CRSAPKCS1v15EncryptorShim(const CRSAPublicKey& aKey)
sl@0: 	: CRSAPKCS1v15Encryptor(aKey)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: CRSAPKCS1v15EncryptorShim::~CRSAPKCS1v15EncryptorShim()
sl@0: 	{
sl@0: 	delete iAsymmetricCipherImpl;
sl@0: 	delete iKey;
sl@0: 	}
sl@0: 
sl@0: void CRSAPKCS1v15EncryptorShim::ConstructL(const CRSAPublicKey& aKey)
sl@0: 	{
sl@0: 	iKey = KeyConverter::CreateKeyL(aKey);
sl@0: 	CAsymmetricCipherFactory::CreateAsymmetricCipherL(
sl@0: 												iAsymmetricCipherImpl,
sl@0: 												KRsaCipherUid,
sl@0: 												*iKey,
sl@0: 												KCryptoModeEncryptUid,
sl@0: 												KPaddingModePkcs1_v1_5_EncryptionUid,
sl@0: 												NULL);
sl@0: 	}
sl@0: 
sl@0: void CRSAPKCS1v15EncryptorShim::EncryptL(const TDesC8& aInput, TDes8& aOutput) const
sl@0: 	{
sl@0: 	iAsymmetricCipherImpl->ProcessL(aInput, aOutput);
sl@0: 	}
sl@0: 
sl@0: TInt CRSAPKCS1v15EncryptorShim::MaxInputLength(void) const
sl@0: 	{
sl@0: 	TInt maxInputLength=0; 
sl@0: 	TRAPD(err, maxInputLength=iAsymmetricCipherImpl->GetMaximumInputLengthL())
sl@0: 	if (err==KErrNone)
sl@0: 		{
sl@0: 		return maxInputLength;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return err;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: TInt CRSAPKCS1v15EncryptorShim::MaxOutputLength(void) const
sl@0: 	{
sl@0: 	TInt maxOutputLength=0; 
sl@0: 	TRAPD(err, maxOutputLength=iAsymmetricCipherImpl->GetMaximumOutputLengthL())
sl@0: 	if (err==KErrNone)
sl@0: 		{
sl@0: 		return maxOutputLength;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return err;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: // CRSAPKCS1v15DecryptorShim ////////////////////////////////////////////////////////
sl@0: CRSAPKCS1v15DecryptorShim* CRSAPKCS1v15DecryptorShim::NewL(const CRSAPrivateKey& aKey)
sl@0: 	{
sl@0: 	CRSAPKCS1v15DecryptorShim* self = CRSAPKCS1v15DecryptorShim::NewLC(aKey);
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: CRSAPKCS1v15DecryptorShim* CRSAPKCS1v15DecryptorShim::NewLC(const CRSAPrivateKey& aKey)
sl@0: 	{
sl@0: 	CRSAPKCS1v15DecryptorShim* self = new (ELeave) CRSAPKCS1v15DecryptorShim(aKey);
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL(aKey);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: CRSAPKCS1v15DecryptorShim::CRSAPKCS1v15DecryptorShim(const CRSAPrivateKey& aKey)
sl@0: 	: CRSAPKCS1v15Decryptor(aKey)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: CRSAPKCS1v15DecryptorShim::~CRSAPKCS1v15DecryptorShim()
sl@0: 	{
sl@0: 	delete iAsymmetricCipherImpl;
sl@0: 	delete iKey;
sl@0: 	}
sl@0: 
sl@0: void CRSAPKCS1v15DecryptorShim::ConstructL(const CRSAPrivateKey& aKey)
sl@0: 	{
sl@0: 	iKey = KeyConverter::CreateKeyL(aKey);
sl@0: 	CAsymmetricCipherFactory::CreateAsymmetricCipherL(
sl@0: 												iAsymmetricCipherImpl,
sl@0: 												KRsaCipherUid,
sl@0: 												*iKey,
sl@0: 												KCryptoModeDecryptUid,
sl@0: 												KPaddingModePkcs1_v1_5_EncryptionUid,
sl@0: 												NULL);
sl@0: 	}
sl@0: 
sl@0: void CRSAPKCS1v15DecryptorShim::DecryptL(const TDesC8& aInput, TDes8& aOutput) const
sl@0: 	{
sl@0: 	iAsymmetricCipherImpl->ProcessL(aInput, aOutput);
sl@0: 	}
sl@0: 
sl@0: TInt CRSAPKCS1v15DecryptorShim::MaxInputLength(void) const
sl@0: 	{
sl@0: 	TInt maxInputLength=0; 
sl@0: 	TRAPD(err, maxInputLength=iAsymmetricCipherImpl->GetMaximumInputLengthL())
sl@0: 	if (err==KErrNone)
sl@0: 		{
sl@0: 		return maxInputLength;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return err;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: TInt CRSAPKCS1v15DecryptorShim::MaxOutputLength(void) const
sl@0: 	{
sl@0: 	TInt maxOutputLength=0; 
sl@0: 	TRAPD(err, maxOutputLength=iAsymmetricCipherImpl->GetMaximumOutputLengthL())
sl@0: 	if (err==KErrNone)
sl@0: 		{
sl@0: 		return maxOutputLength;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return err;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: // CRSAPKCS1v15SignerShim ////////////////////////////////////////////////////////
sl@0: CRSAPKCS1v15SignerShim* CRSAPKCS1v15SignerShim::NewL(const CRSAPrivateKey& aKey)
sl@0: 	{
sl@0: 	CRSAPKCS1v15SignerShim* self = CRSAPKCS1v15SignerShim::NewLC(aKey);
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: CRSAPKCS1v15SignerShim* CRSAPKCS1v15SignerShim::NewLC(const CRSAPrivateKey& aKey)
sl@0: 	{
sl@0: 	CRSAPKCS1v15SignerShim* self = new (ELeave) CRSAPKCS1v15SignerShim(aKey);
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL(aKey);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: CRSASignature* CRSAPKCS1v15SignerShim::SignL(const TDesC8& aInput) const
sl@0: 	{
sl@0: 	//Sign the input data
sl@0: 	CCryptoParams* signature = CCryptoParams::NewLC();
sl@0: 	iSignerImpl->SignL(aInput, *signature);
sl@0: 
sl@0: 	//Retrieve the S in RSA signature from the array
sl@0: 	const TInteger& cS=signature->GetBigIntL(KRsaSignatureParameterSUid);
sl@0: 
sl@0: 	//Make copies of the RSA signature
sl@0: 	RInteger s=RInteger::NewL(cS);
sl@0: 	CleanupClosePushL(s);	
sl@0: 
sl@0: 	//Create the RSA signature object, the ownership of s is transfered to rsaSig
sl@0: 	CRSASignature* rsaSig=CRSASignature::NewL(s);
sl@0: 
sl@0: 	//Cleanup
sl@0: 	CleanupStack::Pop(&s);
sl@0: 	CleanupStack::PopAndDestroy(signature);
sl@0: 	return rsaSig;
sl@0: 	}
sl@0: 
sl@0: TInt CRSAPKCS1v15SignerShim::MaxInputLength(void) const
sl@0: 	{
sl@0: 	TInt maxInputLength=0; 
sl@0: 	TRAPD(err, maxInputLength=iSignerImpl->GetMaximumInputLengthL())
sl@0: 	if (err==KErrNone)
sl@0: 		{
sl@0: 		return maxInputLength;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return err;
sl@0: 		}
sl@0: 	}
sl@0: 	
sl@0: TInt CRSAPKCS1v15SignerShim::MaxOutputLength(void) const
sl@0: 	{
sl@0: 	TInt maxOutputLength=0; 
sl@0: 	TRAPD(err, maxOutputLength=iSignerImpl->GetMaximumOutputLengthL())
sl@0: 	if (err==KErrNone)
sl@0: 		{
sl@0: 		return maxOutputLength;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return err;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: CRSAPKCS1v15SignerShim::~CRSAPKCS1v15SignerShim(void)
sl@0: 	{
sl@0: 	delete iSignerImpl;
sl@0: 	delete iKey;
sl@0: 	}
sl@0: 
sl@0: CRSAPKCS1v15SignerShim::CRSAPKCS1v15SignerShim(const CRSAPrivateKey& aKey)
sl@0: 	: CRSAPKCS1v15Signer(aKey)
sl@0: 	{
sl@0: 	}
sl@0: 	
sl@0: void CRSAPKCS1v15SignerShim::ConstructL(const CRSAPrivateKey& aKey)
sl@0: 	{
sl@0: 	iKey = KeyConverter::CreateKeyL(aKey);
sl@0: 	CSignatureFactory::CreateSignerL(
sl@0: 									iSignerImpl,
sl@0: 									KRsaSignerUid,
sl@0: 									*iKey,
sl@0: 									KPaddingModePkcs1_v1_5_SignatureUid,
sl@0: 									NULL);
sl@0: 	}
sl@0: 
sl@0: // CRSAPKCS1v15VerifierShim ////////////////////////////////////////////////////////
sl@0: CRSAPKCS1v15VerifierShim* CRSAPKCS1v15VerifierShim::NewL(const CRSAPublicKey& aKey)
sl@0: 	{
sl@0: 	CRSAPKCS1v15VerifierShim* self = CRSAPKCS1v15VerifierShim::NewLC(aKey);
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: CRSAPKCS1v15VerifierShim* CRSAPKCS1v15VerifierShim::NewLC(const CRSAPublicKey& aKey)
sl@0: 	{
sl@0: 	CRSAPKCS1v15VerifierShim* self = new (ELeave) CRSAPKCS1v15VerifierShim(aKey);
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL(aKey);
sl@0: 	return self;
sl@0: 	}
sl@0: 	
sl@0: TBool CRSAPKCS1v15VerifierShim::VerifyL(const TDesC8& aInput, const CRSASignature& aSignature) const
sl@0: 	{
sl@0: 	//create the array format rsa signature for the new crypto spi
sl@0: 	CCryptoParams* rsaSig = CCryptoParams::NewLC();
sl@0: 
sl@0: 	rsaSig->AddL(aSignature.S(), KRsaSignatureParameterSUid);
sl@0: 
sl@0: 	//pass the signature and input to crypto spi to be verified
sl@0: 	TBool verificationResult = EFalse;	
sl@0: 	iVerifierImpl->VerifyL(aInput, *rsaSig, verificationResult);
sl@0: 
sl@0: 	//Cleanup the array
sl@0: 	CleanupStack::PopAndDestroy(rsaSig);
sl@0: 	return verificationResult;
sl@0: 	}
sl@0: 
sl@0: HBufC8* CRSAPKCS1v15VerifierShim::InverseSignLC(const CRSASignature& aSignature) const
sl@0: 	{
sl@0: 	//create the array format rsa signature for the new crypto spi
sl@0: 	CCryptoParams* rsaSig = CCryptoParams::NewLC();
sl@0: 
sl@0: 	rsaSig->AddL(aSignature.S(), KRsaSignatureParameterSUid);
sl@0: 
sl@0: 	//pass the signature and input to crypto spi to be verified
sl@0: 	HBufC8* output = NULL;
sl@0: 	iVerifierImpl->InverseSignL(output, *rsaSig);
sl@0: 
sl@0: 	//Cleanup the array
sl@0: 	CleanupStack::PopAndDestroy(rsaSig);
sl@0: 
sl@0: 	// leave output on the cleanup stack
sl@0: 	CleanupStack::PushL(output);
sl@0: 	return output;
sl@0: 	}
sl@0: 
sl@0: TInt CRSAPKCS1v15VerifierShim::MaxInputLength(void) const
sl@0: 	{
sl@0: 	TInt maxInputLength=0; 
sl@0: 	TRAPD(err, maxInputLength=iVerifierImpl->GetMaximumInputLengthL())
sl@0: 	if (err==KErrNone)
sl@0: 		{
sl@0: 		return maxInputLength;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return err;
sl@0: 		}
sl@0: 	}
sl@0: 	
sl@0: TInt CRSAPKCS1v15VerifierShim::MaxOutputLength(void) const
sl@0: 	{
sl@0: 	TInt maxOutputLength=0; 
sl@0: 	TRAPD(err, maxOutputLength=iVerifierImpl->GetMaximumOutputLengthL())
sl@0: 	if (err==KErrNone)
sl@0: 		{
sl@0: 		return maxOutputLength;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return err;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: CRSAPKCS1v15VerifierShim::~CRSAPKCS1v15VerifierShim(void)
sl@0: 	{
sl@0: 	delete iVerifierImpl;
sl@0: 	delete iKey;
sl@0: 	}
sl@0: 
sl@0: CRSAPKCS1v15VerifierShim::CRSAPKCS1v15VerifierShim(const CRSAPublicKey& aKey)
sl@0: 	: CRSAPKCS1v15Verifier(aKey)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void CRSAPKCS1v15VerifierShim::ConstructL(const CRSAPublicKey& aKey)
sl@0: 	{
sl@0: 	iKey = KeyConverter::CreateKeyL(aKey);
sl@0: 	CSignatureFactory::CreateVerifierL(
sl@0: 									iVerifierImpl,
sl@0: 									KRsaVerifierUid,
sl@0: 									*iKey,
sl@0: 									KPaddingModePkcs1_v1_5_SignatureUid,
sl@0: 									NULL);
sl@0: 	}
sl@0: