diff -r da2ae96f639b -r cd501b96611d crypto/weakcryptospi/source/asymmetric/rsashim.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/crypto/weakcryptospi/source/asymmetric/rsashim.h Fri Nov 06 13:21:00 2009 +0200 @@ -0,0 +1,238 @@ +/* +* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of the License "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: +* RSA shim classes definition +* +*/ + + +/** + @file + @internalComponent + @released +*/ + +#ifndef __RSASHIM_H__ +#define __RSASHIM_H__ + +#include + +namespace CryptoSpi + { + class CAsymmetricCipher; + class CKey; + class CSigner; + class CVerifier; + } + +NONSHARABLE_CLASS(CRSAPKCS1v15EncryptorShim) : public CRSAPKCS1v15Encryptor +{ +public: + /** + Creates an RSAPKCS1v15EncryptorShim object which has the same interface + as CRSAPKCS1v15Encryptor but delegates all work to a Crypto SPI plug-in. + + @param aKey The encryption key + @return A pointer to a CRSAPKCS1v15EncryptorShim instance + */ + static CRSAPKCS1v15EncryptorShim* NewL(const CRSAPublicKey& aKey); + + /** + Creates an RSAPKCS1v15EncryptorShim object which has the same interface + as CRSAPKCS1v15Encryptor but delegates all work to a Crypto SPI plug-in. + + A pointer to the new object is placed on the cleanup stack + + @param aKey The encryption key + @return A pointer to a CRSAPKCS1v15EncryptorShim instance + */ + static CRSAPKCS1v15EncryptorShim* NewLC(const CRSAPublicKey& aKey); + + // From CRSAPKCS1v15Encryptor + void EncryptL(const TDesC8& aInput, TDes8& aOutput) const; + TInt MaxInputLength(void) const; + TInt MaxOutputLength(void) const; + + /// Destructor + ~CRSAPKCS1v15EncryptorShim(); + +private: + /// Constructor + CRSAPKCS1v15EncryptorShim(const CRSAPublicKey& aKey); + void ConstructL(const CRSAPublicKey& aKey); + +private: + /// SPI delegate + CryptoSpi::CAsymmetricCipher* iAsymmetricCipherImpl; + + /// SPI requires all key to passed as key-objects + CryptoSpi::CKey* iKey; +}; + +NONSHARABLE_CLASS(CRSAPKCS1v15DecryptorShim) : public CRSAPKCS1v15Decryptor +{ +public: + /** + Creates an RSAPKCS1v15DecryptorShim object which has the same interface + as CRSAPKCS1v15Decryptor but delegates all work to a Crypto SPI plug-in. + + @param aKey The decryption key + @return A pointer to a CRSAPKCS1v15DecryptorShim instance + */ + static CRSAPKCS1v15DecryptorShim* NewL(const CRSAPrivateKey& aKey); + + /** + Creates an RSAPKCS1v15EncryptorShim object which has the same interface + as CRSAPKCS1v15Decryptor but delegates all work to a Crypto SPI plug-in. + + A pointer to the new object is placed on the cleanup stack + + @param aKey The decryption key + @return A pointer to a CRSAPKCS1v15DecryptorShim instance + */ + static CRSAPKCS1v15DecryptorShim* NewLC(const CRSAPrivateKey& aKey); + + // From CRSAPKCS1v15Decryptor + void DecryptL(const TDesC8& aInput, TDes8& aOutput) const; + TInt MaxInputLength(void) const; + TInt MaxOutputLength(void) const; + + /// Destructor + ~CRSAPKCS1v15DecryptorShim(); + +private: + /// Constructor + CRSAPKCS1v15DecryptorShim(const CRSAPrivateKey& aKey); + void ConstructL(const CRSAPrivateKey& aKey); + +private: + /// SPI delegate + CryptoSpi::CAsymmetricCipher* iAsymmetricCipherImpl; + + /// SPI requires all key to passed as key-objects + CryptoSpi::CKey* iKey; +}; + +NONSHARABLE_CLASS(CRSAPKCS1v15SignerShim) : public CRSAPKCS1v15Signer + { +public: + /** + Creates a new CRSAPKCS1v15SignerShim object which has the same interface + as CRSAPKCS1v15Signer but delegates all work to a Crypto SPI plug-in. + + @param aKey The RSA private key to be used for signing + @return A pointer to a CRSAPKCS1v15SignerShim instance + @leave KErrKeySize If the key length is too small + */ + static CRSAPKCS1v15SignerShim* NewL(const CRSAPrivateKey& aKey); + + /** + Creates a new CRSAPKCS1v15SignerShim object which has the same interface + as CRSAPKCS1v15Signer but delegates all work to a Crypto SPI plug-in. + + @param aKey The RSA private key to be used for signing + @return A pointer to a CRSAPKCS1v15SignerShim instance + @leave KErrKeySize If the key length is too small + */ + static CRSAPKCS1v15SignerShim* NewLC(const CRSAPrivateKey& aKey); + + // From CRSAPKCS1v15Signer + virtual CRSASignature* SignL(const TDesC8& aInput) const; + virtual TInt MaxInputLength(void) const; + virtual TInt MaxOutputLength(void) const; + /** The destructor frees all resources owned by the object, prior to its destruction.*/ + ~CRSAPKCS1v15SignerShim(void); +protected: + + CRSAPKCS1v15SignerShim(const CRSAPrivateKey& aKey); + void ConstructL(const CRSAPrivateKey& aKey); + +protected: + /// SPI delegate + CryptoSpi::CSigner* iSignerImpl; + + /// SPI requires all key to passed as key-objects + CryptoSpi::CKey* iKey; +private: + CRSAPKCS1v15SignerShim(const CRSAPKCS1v15SignerShim&); + CRSAPKCS1v15SignerShim& operator=(const CRSAPKCS1v15SignerShim&); + }; + +/** +* This class verifies RSA signatures given a message and its supposed +* signature. It follows the RSA PKCS#1 v1.5 with PKCS#1 v1.5 padding specification +* with the following exception: the VerifyL() function does not hash or +* in any way manipulate the input data before checking. Thus in order to verify +* RSA signatures in PKCS#1 v1.5 format, the input data needs to follow PKCS#1 v1.5 +* specification, i.e. be ASN.1 encoded and prefixed by ASN.1 encoded digestId. +* +* @internalComponent +* @released +*/ +NONSHARABLE_CLASS(CRSAPKCS1v15VerifierShim) : public CRSAPKCS1v15Verifier + { +public: + /** + @internalComponent + + Creates a new CRSAPKCS1v15VerifierShim object which has the same interface + as CRSAPKCS1v15Verifier but delegates all work to a Crypto SPI plug-in. + + @param aKey The RSA public key to be used for verifying + @return A pointer to a CRSAPKCS1v15VerifierShim instance + @leave KErrKeySize If the key length is too small + */ + static CRSAPKCS1v15VerifierShim* NewL(const CRSAPublicKey& aKey); + + /** + @internalComponent + + Creates a new CRSAPKCS1v15VerifierShim object which has the same interface + as CRSAPKCS1v15Verifier but delegates all work to a Crypto SPI plug-in. + + The returned pointer is put onto the cleanup stack. + + @param aKey The RSA public key to be used for verifying + @return A pointer to a CRSAPKCS1v15VerifierShim instance + + @leave KErrKeySize If the key length is too small + */ + static CRSAPKCS1v15VerifierShim* NewLC(const CRSAPublicKey& aKey); + + // CRSAPKCS1v15Verifier + virtual TInt MaxInputLength(void) const; + virtual TInt MaxOutputLength(void) const; + + // RSAVerifier + virtual TBool VerifyL(const TDesC8& aInput, const CRSASignature& aSignature) const; + virtual HBufC8* InverseSignLC(const CRSASignature& aSignature) const; + + /** The destructor frees all resources owned by the object, prior to its destruction. */ + virtual ~CRSAPKCS1v15VerifierShim(void); +protected: + CRSAPKCS1v15VerifierShim(const CRSAPublicKey& aKey); + void ConstructL(const CRSAPublicKey& aKey); + +protected: + /// SPI delegate + CryptoSpi::CVerifier* iVerifierImpl; + + /// SPI requires all key to passed as key-objects + CryptoSpi::CKey* iKey; +private: + CRSAPKCS1v15VerifierShim(const CRSAPKCS1v15VerifierShim&); + CRSAPKCS1v15VerifierShim& operator=(const CRSAPKCS1v15VerifierShim&); + }; + +#endif // __RSASHIM_H__