CDSAVerifier Class Reference

#include <asymmetric.h>

class CDSAVerifier : public CVerifier< CDSASignature >

Inherits from

CDSAVerifier
- CVerifier< CDSASignature >
  - CBase
  - MSignatureSystem

Protected Attributes
const CDSAPublicKey &	iPublicKey

Public Member Functions
virtual TInt	MaxInputLength(void)
IMPORT_C CDSAVerifier *	NewL(const CDSAPublicKey &)
IMPORT_C CDSAVerifier *	NewLC(const CDSAPublicKey &)
virtual TBool	VerifyL(const TDesC8 &, const CDSASignature &)

Protected Member Functions
	CDSAVerifier(const CDSAPublicKey &)

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< CDSASignature >::CVerifier(void)
	MSignatureSystem::MSignatureSystem(void)

Detailed Description

Implementation of DSA signature verification as specified in FIPS 186-2 change request 1.

Member Attribute Documentation

iPublicKey

const CDSAPublicKey &

iPublicKey

[protected]

The DSA public key to be used for verification

Constructor & Destructor Documentation

CDSAVerifier ( const CDSAPublicKey & )

CDSAVerifier

(

const CDSAPublicKey &

aKey

)

[protected]

Member Function Documentation

MaxInputLength ( void )

MaxInputLength

(

void

)

const [virtual]

Reimplemented from MSignatureSystem::MaxInputLength(void)const

Gets the maximum size of input accepted by this object.

Return Value: The maximum length allowed in bytes

NewL ( const CDSAPublicKey & )

IMPORT_C CDSAVerifier *

NewL

(

const CDSAPublicKey &

aKey

)

[static]

Creates a new CDSAVerifier object from a specified DSA public key.

Parameters
aKey	The DSA public key to be used for verifying

Return Value: A pointer to the new CDSAVerifier object

NewLC ( const CDSAPublicKey & )

IMPORT_C CDSAVerifier *

NewLC

(

const CDSAPublicKey &

aKey

)

[static]

Creates a new CDSAVerifier object from a specified DSA public key.

The returned pointer is put onto the cleanup stack.

Parameters
aKey	The DSA public key to be used for verifying

Return Value: A pointer to the new CDSAVerifier object

VerifyL ( const TDesC8 &, const CDSASignature & )

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

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

Verifies the specified digital signature

Note that in order to be interoperable and compliant with the DSS, aInput must be the result of a SHA-1 hash.

Parameters
aInput	A SHA-1 hash of the received message
aSignature	The signature to be verified

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