cryptix.provider.elgamal

Class BaseElGamalParams

java.lang.Object

cryptix.provider.elgamal.BaseElGamalParams

All Implemented Interfaces:

ElGamalParams

public class BaseElGamalParams
extends java.lang.Object
implements ElGamalParams

Class representing an ElGamal-specific set of key parameters, which defines an ElGamal key family.

The same key parameters apply to both the signature and encryption algorithms.

References:

1. Bruce Schneier, "Section 19.6 ElGamal," Applied Cryptography, 2nd Edition, John Wiley & Sons, 1996.

2. IEEE P1363 draft standard, http://stdsbbs.ieee.org/groups/1363/index.html

Copyright © 1997 Systemics Ltd on behalf of the Cryptix Development Team.
All rights reserved.

$Revision: 1.2 $

Since:

Cryptix 2.2.2

Author:

David Hopwood

See Also:

ElGamalKey, Key, java.security.Cipher, Signature

Field Summary

Fields

Modifier and Type	Field and Description
protected java.math.BigInteger	g
protected java.math.BigInteger	p

Constructor Summary

Constructors

Constructor and Description
BaseElGamalParams(java.math.BigInteger p, java.math.BigInteger g) Construct an ElGamalParams object with the specified prime p, and base g.

Method Summary

Modifier and Type	Method and Description
java.math.BigInteger	getG() Returns the base, g.
java.math.BigInteger	getP() Returns the prime, p.

Methods inherited from class java.lang.Object

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

Field Detail

p

protected java.math.BigInteger p

g

protected java.math.BigInteger g

Constructor Detail

BaseElGamalParams

public BaseElGamalParams(java.math.BigInteger p,
                         java.math.BigInteger g)

Construct an ElGamalParams object with the specified prime p, and base g.

Method Detail

getP

public java.math.BigInteger getP()

Returns the prime, p.

Specified by:

getP in interface ElGamalParams

Returns:

the prime as a java.math.BigInteger

getG

public java.math.BigInteger getG()

Returns the base, g.

Specified by:

getG in interface ElGamalParams

Returns:

the base as a java.math.BigInteger