javax.crypto.spec
Class DHPublicKeySpec

java.lang.Object
  |
  +--javax.crypto.spec.DHPublicKeySpec

All Implemented Interfaces:

KeySpec

Direct Known Subclasses:

ESDHPublicKeySpec

public class DHPublicKeySpec

extends Object

implements KeySpec

Diffie Hellman public key specification.

Attention: This is not a SUN implementation!

This class has been developed by IAIK according to the documentation publically available.
For SUNīs documentation of this class see http://java.sun.com/security/JCE1.2/spec/apidoc/index.html

This class represents a Diffie Hellman public key specification. A key specification is a transparent representation of the key material constituting the key. A Diffie Hellman public key specification represents the public value y, and the Diffie Hellman parameters p (prime modulus), g (base generator), and l (length of the private value x).

Version:

File Revision 16

See Also:

KeySpec, DHPrivateKeySpec

Field Summary

protected BigInteger	g
protected BigInteger	p
protected BigInteger	y

Constructor Summary

DHPublicKeySpec(BigInteger y, BigInteger p, BigInteger g)
Creates a Diffie-Hellman public key specification based on given public value y, prime modulus p and base generator g.

Method Summary

BigInteger	getG() Returns the base generator g.
BigInteger	getP() Returns the prime modulus p.
BigInteger	getY() Returns the public value y.

Methods inherited from class java.lang.Object

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

Field Detail

y

protected BigInteger y

p

protected BigInteger p

g

protected BigInteger g

Constructor Detail

DHPublicKeySpec

public DHPublicKeySpec(BigInteger y,
                       BigInteger p,
                       BigInteger g)

Creates a Diffie-Hellman public key specification based on given public value y, prime modulus p and base generator g.

Parameters:

y - the public value

p - the prime modulus

g - the base generator

Method Detail

getY

public BigInteger getY()

Returns the public value y.

Returns:

the public value y

getP

public BigInteger getP()

Returns the prime modulus p.

Returns:

the prime modulus p

getG

public BigInteger getG()

Returns the base generator g.

Returns:

the base generator g