CRSAVerifier Class Reference

#include <asymmetric.h>

class CRSAVerifier : public CVerifier< CRSASignature >

Inherits from

CRSAVerifier
- CVerifier< CRSASignature >
  - CBase
  - MSignatureSystem

Public Member Functions
pure virtual HBufC8 *	InverseSignLC(const CRSASignature &)
pure virtual TInt	MaxOutputLength(void)
virtual IMPORT_C TBool	VerifyL(const TDesC8 &, const CRSASignature &)

Protected Member Functions
	CRSAVerifier(void)

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()
	CVerifier< CRSASignature >::CVerifier(void)
	MSignatureSystem::MSignatureSystem(void)
	MSignatureSystem::MaxInputLength(void)const

Detailed Description

Abstract base class for all RSA Verifiers.

Constructor & Destructor Documentation

CRSAVerifier ( void )

IMPORT_C

CRSAVerifier

(

void

)

[protected]

Default constructor

Member Function Documentation

InverseSignLC ( const CRSASignature & )

HBufC8 *

InverseSignLC

(

const CRSASignature &

aSignature

)

const [pure virtual]

Performs a decryption operation on a signature using the public key.

This is the inverse of the sign operation, which performs a encryption operation on its input data using the private key. Although this can be used to verify signatures, CRSAVerifier::VerifyL should be used in preference. This method is however required by some security protocols.

Parameters
aSignature	The signature to be verified

Return Value: A pointer to a new buffer containing the result of the operation. The pointer is left on the cleanup stack.

MaxOutputLength ( void )

TInt

MaxOutputLength

(

void

)

const [pure virtual]

Gets the maximum size of output that can be generated by this object.

Return Value: The maximum output length in bytes

VerifyL ( const TDesC8 &, const CRSASignature & )

IMPORT_C TBool	VerifyL	(	const TDesC8 &	aInput,
			const CRSASignature &	aSignature
		)	const [virtual]

Reimplemented from CVerifier< CRSASignature >::VerifyL(const TDesC8 &,const CRSASignature &)const

Verifies the specified digital signature

Parameters
aInput	The message digest that was originally signed
aSignature	The signature to be verified

Return Value: Whether the signature is the result of signing aInput with the supplied key