de.flexiprovider.core.elgamal
Class ElGamalPublicKeySpec

java.lang.Object
  |
  +--de.flexiprovider.core.elgamal.ElGamalPublicKeySpec

All Implemented Interfaces:

KeySpec, java.security.spec.KeySpec

public class ElGamalPublicKeySpec

extends java.lang.Object

implements KeySpec

This class specifies an ElGamal public key.

Author:

Thomas Wahrenbruch

See Also:

ElGamalKeyFactory

Constructor Summary

ElGamalPublicKeySpec(FlexiBigInt modulus, FlexiBigInt generator, FlexiBigInt publicA)
The constructor.

Method Summary

FlexiBigInt	getGenerator()
FlexiBigInt	getModulus()
FlexiBigInt	getPublicA()

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ElGamalPublicKeySpec

public ElGamalPublicKeySpec(FlexiBigInt modulus,
                            FlexiBigInt generator,
                            FlexiBigInt publicA)

The constructor.

Parameters:

modulus - - the prime modulus which specifies the group

generator - - a generator of the group

publicA - - the public value A = g^a mod modulus

Method Detail

getModulus

public FlexiBigInt getModulus()

Returns:

the prime modulus

getGenerator

public FlexiBigInt getGenerator()

Returns:

the generator

getPublicA

public FlexiBigInt getPublicA()

Returns:

the public value A = g^a mod modulus