com.pcbsys.nirvana.client.nPassphraseValidator Class Reference

This class implements a message digest Validator. More...

Inheritance diagram for com.pcbsys.nirvana.client.nPassphraseValidator:

Public Member Functions
Object	check (byte[] original) throws Exception
	Checks the original digest with the digest created with the update method. More...
Provider	getProvider ()
	Return the Provider used to vend the Digest class. More...
	nPassphraseValidator (String passphrase) throws NoSuchAlgorithmException, nIllegalArgumentException
	Creates a nPassphraseValidator with the supplied passphrase. More...
	nPassphraseValidator (String passphrase, String algorithm) throws NoSuchAlgorithmException, nIllegalArgumentException
	Creates a nPassphraseValidator with the supplied passphrase. More...
void	start (byte[] sig)
	This method does nothing. More...
void	stop ()
	This method does nothing. More...
void	update (byte[] data) throws Exception
	Adds the data to the digest. More...

Static Public Member Functions
static String	getDefaultAlgorithm ()
	Get the default algorithm that will be used if no algorithm is supplied. More...

Detailed Description

This class implements a message digest Validator.

The digest is created by

1. Digesting the PassPhrase

1. Digesting the data

1. Producing the initial digest

1. Reseting the digest

1. Digesting the PassPhrase

1. Digesting the initial digest from step

1. Producing the final digest

1. Comparing the supplied digest with the one created

Constructor & Destructor Documentation

com.pcbsys.nirvana.client.nPassphraseValidator.nPassphraseValidator

(

String

passphrase

)

throws NoSuchAlgorithmException, nIllegalArgumentException

Creates a nPassphraseValidator with the supplied passphrase.

Parameters

passphrase

String representation of the passphrase. The larger the better

Exceptions

NoSuchAlgorithmException	If the current provider does not support the Algorithm
nIllegalArgumentException	If any of the arguments are invalid

com.pcbsys.nirvana.client.nPassphraseValidator.nPassphraseValidator	(	String	passphrase,
		String	algorithm
	)		throws NoSuchAlgorithmException, nIllegalArgumentException

Creates a nPassphraseValidator with the supplied passphrase.

Parameters

passphrase	String representation of the passphrase. The larger the better
algorithm	Algorithm name to use

Exceptions

NoSuchAlgorithmException	If the current provider does not support the Algorithm
nIllegalArgumentException	If any of the arguments are invalid

Member Function Documentation

Object com.pcbsys.nirvana.client.nPassphraseValidator.check

(

byte[]

original

)

throws Exception

Checks the original digest with the digest created with the update method.

Parameters

original

Original digest to compare with

Returns

The message digest

Exceptions

Exception

If the digests do not match

Implements com.pcbsys.nirvana.client.nMessageValidator.

static String com.pcbsys.nirvana.client.nPassphraseValidator.getDefaultAlgorithm ( )

static

Get the default algorithm that will be used if no algorithm is supplied.

Currently this is SHA1 with RSA.

Returns

The Algorithm name that will be used by default

Provider com.pcbsys.nirvana.client.nPassphraseValidator.getProvider

(

)

Return the Provider used to vend the Digest class.

Returns

a java.security.Provider class

Implements com.pcbsys.nirvana.client.nMessageValidator.

void com.pcbsys.nirvana.client.nPassphraseValidator.start

(

byte[]

sig

)

This method does nothing.

Is required by the interface

Implements com.pcbsys.nirvana.client.nMessageValidator.

void com.pcbsys.nirvana.client.nPassphraseValidator.stop

(

)

This method does nothing.

Is required by the interface

Implements com.pcbsys.nirvana.client.nMessageValidator.

void com.pcbsys.nirvana.client.nPassphraseValidator.update

(

byte[]

data

)

throws Exception

Adds the data to the digest.

Parameters

data	Data to add to the digest

Exceptions

Exception

If unable to add the data to the digest

Implements com.pcbsys.nirvana.client.nMessageValidator.