de.flexiprovider.core.elgamal.semanticallysecure
Class SSVElGamalPublicKeySpec

java.lang.Object
  |
  +--de.flexiprovider.core.elgamal.semanticallysecure.SSVElGamalPublicKeySpec

All Implemented Interfaces:

KeySpec, java.security.spec.KeySpec

public class SSVElGamalPublicKeySpec

extends java.lang.Object

implements KeySpec

This class specifies an ElGamal public key.

Author:

Thomas Wahrenbruch, Roberto Samarone dos Santos Araújo

See Also:

SSVElGamalKeyFactory

Constructor Summary

SSVElGamalPublicKeySpec(FlexiBigInt modulusP, FlexiBigInt modulusQ, FlexiBigInt generator, FlexiBigInt publicA)
The constructor.

Method Summary

FlexiBigInt	getGenerator()
FlexiBigInt	getModulusP()
FlexiBigInt	getModulusQ()
FlexiBigInt	getPublicA()

Methods inherited from class java.lang.Object

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

Constructor Detail

SSVElGamalPublicKeySpec

public SSVElGamalPublicKeySpec(FlexiBigInt modulusP,
                               FlexiBigInt modulusQ,
                               FlexiBigInt generator,
                               FlexiBigInt publicA)

The constructor.

Parameters:

modulusP - the prime modulus p which specifies the group

modulusQ - the prime modulus q which specifies the subgroup

generator - a generator of the group

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

Method Detail

getModulusP

public FlexiBigInt getModulusP()

Returns:

the prime modulus p

getModulusQ

public FlexiBigInt getModulusQ()

Returns:

the prime modulus q

getGenerator

public FlexiBigInt getGenerator()

Returns:

the generator

getPublicA

public FlexiBigInt getPublicA()

Returns:

the public value A = g^a mod modulus