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os/security/crypto/weakcryptospi/source/asymmetric/rsashim.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     1 /*

     2 * Copyright (c) 2006-2010 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 "rsashim.h"

    20 #include <cryptospi/cryptoasymmetriccipherapi.h>

    21 #include <cryptospi/cryptosignatureapi.h>

    22 #include <cryptospi/cryptospidef.h>

    23 #include "keyconverter.h"

    24 #include <cryptospi/keys.h>

    25 

    26 #include "../common/inlines.h"

    27 

    28 

    29 using namespace CryptoSpi;

    30 

    31 // CRSAPKCS1v15EncryptorShim ////////////////////////////////////////////////////////

    32 

    33 CRSAPKCS1v15EncryptorShim* CRSAPKCS1v15EncryptorShim::NewL(const CRSAPublicKey& aKey)

    34 	{

    35 	CRSAPKCS1v15EncryptorShim* self = CRSAPKCS1v15EncryptorShim::NewLC(aKey);

    36 	CleanupStack::Pop(self);

    37 	return self;

    38 	}

    39 

    40 CRSAPKCS1v15EncryptorShim* CRSAPKCS1v15EncryptorShim::NewLC(const CRSAPublicKey& aKey)

    41 	{

    42 	CRSAPKCS1v15EncryptorShim* self = new (ELeave) CRSAPKCS1v15EncryptorShim(aKey);

    43 	CleanupStack::PushL(self);

    44 	self->ConstructL(aKey);

    45 	return self;

    46 	}

    47 

    48 CRSAPKCS1v15EncryptorShim::CRSAPKCS1v15EncryptorShim(const CRSAPublicKey& aKey)

    49 	: CRSAPKCS1v15Encryptor(aKey)

    50 	{

    51 	}

    52 

    53 CRSAPKCS1v15EncryptorShim::~CRSAPKCS1v15EncryptorShim()

    54 	{

    55 	delete iAsymmetricCipherImpl;

    56 	delete iKey;

    57 	}

    58 

    59 void CRSAPKCS1v15EncryptorShim::ConstructL(const CRSAPublicKey& aKey)

    60 	{

    61 	iKey = KeyConverter::CreateKeyL(aKey);

    62 	CAsymmetricCipherFactory::CreateAsymmetricCipherL(

    63 												iAsymmetricCipherImpl,

    64 												KRsaCipherUid,

    65 												*iKey,

    66 												KCryptoModeEncryptUid,

    67 												KPaddingModePkcs1_v1_5_EncryptionUid,

    68 												NULL);

    69 	}

    70 

    71 void CRSAPKCS1v15EncryptorShim::EncryptL(const TDesC8& aInput, TDes8& aOutput) const

    72 	{

    73 	iAsymmetricCipherImpl->ProcessL(aInput, aOutput);

    74 	}

    75 

    76 TInt CRSAPKCS1v15EncryptorShim::MaxInputLength(void) const

    77 	{

    78 	TInt maxInputLength=0; 

    79 	TRAPD(err, maxInputLength=iAsymmetricCipherImpl->GetMaximumInputLengthL())

    80 	if (err==KErrNone)

    81 		{

    82 		return maxInputLength;

    83 		}

    84 	else

    85 		{

    86 		return err;

    87 		}

    88 	}

    89 

    90 TInt CRSAPKCS1v15EncryptorShim::MaxOutputLength(void) const

    91 	{

    92 	TInt maxOutputLength=0; 

    93 	TRAPD(err, maxOutputLength=iAsymmetricCipherImpl->GetMaximumOutputLengthL())

    94 	if (err==KErrNone)

    95 		{

    96 		return maxOutputLength;

    97 		}

    98 	else

    99 		{

   100 		return err;

   101 		}

   102 	}

   103 

   104 // CRSAPKCS1v15DecryptorShim ////////////////////////////////////////////////////////

   105 CRSAPKCS1v15DecryptorShim* CRSAPKCS1v15DecryptorShim::NewL(const CRSAPrivateKey& aKey)

   106 	{

   107 	CRSAPKCS1v15DecryptorShim* self = CRSAPKCS1v15DecryptorShim::NewLC(aKey);

   108 	CleanupStack::Pop(self);

   109 	return self;

   110 	}

   111 

   112 

   113 CRSAPKCS1v15DecryptorShim* CRSAPKCS1v15DecryptorShim::NewLC(const CRSAPrivateKey& aKey)

   114 	{

   115 	CRSAPKCS1v15DecryptorShim* self = new (ELeave) CRSAPKCS1v15DecryptorShim(aKey);

   116 	CleanupStack::PushL(self);

   117 	self->ConstructL(aKey);

   118 	return self;

   119 	}

   120 

   121 CRSAPKCS1v15DecryptorShim::CRSAPKCS1v15DecryptorShim(const CRSAPrivateKey& aKey)

   122 	: CRSAPKCS1v15Decryptor(aKey)

   123 	{

   124 	}

   125 

   126 CRSAPKCS1v15DecryptorShim::~CRSAPKCS1v15DecryptorShim()

   127 	{

   128 	delete iAsymmetricCipherImpl;

   129 	delete iKey;

   130 	}

   131 

   132 void CRSAPKCS1v15DecryptorShim::ConstructL(const CRSAPrivateKey& aKey)

   133 	{

   134 	iKey = KeyConverter::CreateKeyL(aKey);

   135 	CAsymmetricCipherFactory::CreateAsymmetricCipherL(

   136 												iAsymmetricCipherImpl,

   137 												KRsaCipherUid,

   138 												*iKey,

   139 												KCryptoModeDecryptUid,

   140 												KPaddingModePkcs1_v1_5_EncryptionUid,

   141 												NULL);

   142 	}

   143 

   144 void CRSAPKCS1v15DecryptorShim::DecryptL(const TDesC8& aInput, TDes8& aOutput) const

   145 	{

   146 	iAsymmetricCipherImpl->ProcessL(aInput, aOutput);

   147 	}

   148 

   149 TInt CRSAPKCS1v15DecryptorShim::MaxInputLength(void) const

   150 	{

   151 	TInt maxInputLength=0; 

   152 	TRAPD(err, maxInputLength=iAsymmetricCipherImpl->GetMaximumInputLengthL())

   153 	if (err==KErrNone)

   154 		{

   155 		return maxInputLength;

   156 		}

   157 	else

   158 		{

   159 		return err;

   160 		}

   161 	}

   162 

   163 TInt CRSAPKCS1v15DecryptorShim::MaxOutputLength(void) const

   164 	{

   165 	TInt maxOutputLength=0; 

   166 	TRAPD(err, maxOutputLength=iAsymmetricCipherImpl->GetMaximumOutputLengthL())

   167 	if (err==KErrNone)

   168 		{

   169 		return maxOutputLength;

   170 		}

   171 	else

   172 		{

   173 		return err;

   174 		}

   175 	}

   176 

   177 // CRSAPKCS1v15SignerShim ////////////////////////////////////////////////////////

   178 CRSAPKCS1v15SignerShim* CRSAPKCS1v15SignerShim::NewL(const CRSAPrivateKey& aKey)

   179 	{

   180 	CRSAPKCS1v15SignerShim* self = CRSAPKCS1v15SignerShim::NewLC(aKey);

   181 	CleanupStack::Pop(self);

   182 	return self;

   183 	}

   184 

   185 CRSAPKCS1v15SignerShim* CRSAPKCS1v15SignerShim::NewLC(const CRSAPrivateKey& aKey)

   186 	{

   187 	CRSAPKCS1v15SignerShim* self = new (ELeave) CRSAPKCS1v15SignerShim(aKey);

   188 	CleanupStack::PushL(self);

   189 	self->ConstructL(aKey);

   190 	return self;

   191 	}

   192 

   193 CRSASignature* CRSAPKCS1v15SignerShim::SignL(const TDesC8& aInput) const

   194 	{

   195 	//Sign the input data

   196 	CCryptoParams* signature = CCryptoParams::NewLC();

   197 	iSignerImpl->SignL(aInput, *signature);

   198 

   199 	//Retrieve the S in RSA signature from the array

   200 	const TInteger& cS=signature->GetBigIntL(KRsaSignatureParameterSUid);

   201 

   202 	//Make copies of the RSA signature

   203 	RInteger s=RInteger::NewL(cS);

   204 	CleanupClosePushL(s);	

   205 

   206 	//Create the RSA signature object, the ownership of s is transfered to rsaSig

   207 	CRSASignature* rsaSig=CRSASignature::NewL(s);

   208 

   209 	//Cleanup

   210 	CleanupStack::Pop(&s);

   211 	CleanupStack::PopAndDestroy(signature);

   212 	return rsaSig;

   213 	}

   214 

   215 TInt CRSAPKCS1v15SignerShim::MaxInputLength(void) const

   216 	{

   217 	TInt maxInputLength=0; 

   218 	TRAPD(err, maxInputLength=iSignerImpl->GetMaximumInputLengthL())

   219 	if (err==KErrNone)

   220 		{

   221 		return maxInputLength;

   222 		}

   223 	else

   224 		{

   225 		return err;

   226 		}

   227 	}

   228 	

   229 TInt CRSAPKCS1v15SignerShim::MaxOutputLength(void) const

   230 	{

   231 	TInt maxOutputLength=0; 

   232 	TRAPD(err, maxOutputLength=iSignerImpl->GetMaximumOutputLengthL())

   233 	if (err==KErrNone)

   234 		{

   235 		return maxOutputLength;

   236 		}

   237 	else

   238 		{

   239 		return err;

   240 		}

   241 	}

   242 

   243 CRSAPKCS1v15SignerShim::~CRSAPKCS1v15SignerShim(void)

   244 	{

   245 	delete iSignerImpl;

   246 	delete iKey;

   247 	}

   248 

   249 CRSAPKCS1v15SignerShim::CRSAPKCS1v15SignerShim(const CRSAPrivateKey& aKey)

   250 	: CRSAPKCS1v15Signer(aKey)

   251 	{

   252 	}

   253 	

   254 void CRSAPKCS1v15SignerShim::ConstructL(const CRSAPrivateKey& aKey)

   255 	{

   256 	iKey = KeyConverter::CreateKeyL(aKey);

   257 	CSignatureFactory::CreateSignerL(

   258 									iSignerImpl,

   259 									KRsaSignerUid,

   260 									*iKey,

   261 									KPaddingModePkcs1_v1_5_SignatureUid,

   262 									NULL);

   263 	}

   264 

   265 // CRSAPKCS1v15VerifierShim ////////////////////////////////////////////////////////

   266 CRSAPKCS1v15VerifierShim* CRSAPKCS1v15VerifierShim::NewL(const CRSAPublicKey& aKey)

   267 	{

   268 	CRSAPKCS1v15VerifierShim* self = CRSAPKCS1v15VerifierShim::NewLC(aKey);

   269 	CleanupStack::Pop(self);

   270 	return self;

   271 	}

   272 

   273 CRSAPKCS1v15VerifierShim* CRSAPKCS1v15VerifierShim::NewLC(const CRSAPublicKey& aKey)

   274 	{

   275 	CRSAPKCS1v15VerifierShim* self = new (ELeave) CRSAPKCS1v15VerifierShim(aKey);

   276 	CleanupStack::PushL(self);

   277 	self->ConstructL(aKey);

   278 	return self;

   279 	}

   280 	

   281 TBool CRSAPKCS1v15VerifierShim::VerifyL(const TDesC8& aInput, const CRSASignature& aSignature) const

   282 	{

   283 	//create the array format rsa signature for the new crypto spi

   284 	CCryptoParams* rsaSig = CCryptoParams::NewLC();

   285 

   286 	rsaSig->AddL(aSignature.S(), KRsaSignatureParameterSUid);

   287 

   288 	//pass the signature and input to crypto spi to be verified

   289 	TBool verificationResult = EFalse;	

   290 	iVerifierImpl->VerifyL(aInput, *rsaSig, verificationResult);

   291 

   292 	//Cleanup the array

   293 	CleanupStack::PopAndDestroy(rsaSig);

   294 	return verificationResult;

   295 	}

   296 

   297 HBufC8* CRSAPKCS1v15VerifierShim::InverseSignLC(const CRSASignature& aSignature) const

   298 	{

   299 	//create the array format rsa signature for the new crypto spi

   300 	CCryptoParams* rsaSig = CCryptoParams::NewLC();

   301 

   302 	rsaSig->AddL(aSignature.S(), KRsaSignatureParameterSUid);

   303 

   304 	//pass the signature and input to crypto spi to be verified

   305 	HBufC8* output = NULL;

   306 	iVerifierImpl->InverseSignL(output, *rsaSig);

   307 

   308 	//Cleanup the array

   309 	CleanupStack::PopAndDestroy(rsaSig);

   310 

   311 	// leave output on the cleanup stack

   312 	CleanupStack::PushL(output);

   313 	return output;

   314 	}

   315 

   316 TInt CRSAPKCS1v15VerifierShim::MaxInputLength(void) const

   317 	{

   318 	TInt maxInputLength=0; 

   319 	TRAPD(err, maxInputLength=iVerifierImpl->GetMaximumInputLengthL())

   320 	if (err==KErrNone)

   321 		{

   322 		return maxInputLength;

   323 		}

   324 	else

   325 		{

   326 		return err;

   327 		}

   328 	}

   329 	

   330 TInt CRSAPKCS1v15VerifierShim::MaxOutputLength(void) const

   331 	{

   332 	TInt maxOutputLength=0; 

   333 	TRAPD(err, maxOutputLength=iVerifierImpl->GetMaximumOutputLengthL())

   334 	if (err==KErrNone)

   335 		{

   336 		return maxOutputLength;

   337 		}

   338 	else

   339 		{

   340 		return err;

   341 		}

   342 	}

   343 

   344 CRSAPKCS1v15VerifierShim::~CRSAPKCS1v15VerifierShim(void)

   345 	{

   346 	delete iVerifierImpl;

   347 	delete iKey;

   348 	}

   349 

   350 CRSAPKCS1v15VerifierShim::CRSAPKCS1v15VerifierShim(const CRSAPublicKey& aKey)

   351 	: CRSAPKCS1v15Verifier(aKey)

   352 	{

   353 	}

   354 

   355 void CRSAPKCS1v15VerifierShim::ConstructL(const CRSAPublicKey& aKey)

   356 	{

   357 	iKey = KeyConverter::CreateKeyL(aKey);

   358 	CSignatureFactory::CreateVerifierL(

   359 									iVerifierImpl,

   360 									KRsaVerifierUid,

   361 									*iKey,

   362 									KPaddingModePkcs1_v1_5_SignatureUid,

   363 									NULL);

   364 	}

   365
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