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javax.crypto.spec
Class DHParameterSpec  

java.lang.Object
  javax.crypto.spec.DHParameterSpec

All Implemented Interfaces:

java.security.spec.AlgorithmParameterSpec

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public class DHParameterSpec

extends java.lang.Object

implements java.security.spec.AlgorithmParameterSpec

The base set of parameters necessary to perform Diffie-Hellman key exchange. Each party in the key exchange shares these parameters.

Each set of parameters consists of a base generator g, a prime modulus p, and an optional length, in bits, of the private exponent.

See PKCS #3 - Diffie-Hellman Key Agreement Standard for more information.

Since:

1.4

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Field Summary
private  java.math.BigInteger	g           The base generator g.
private  int	l           The length, in bits, of the private exponent.
private  java.math.BigInteger	p           The prime modulus p.

 

Constructor Summary

DHParameterSpec(java.math.BigInteger p, java.math.BigInteger g)           Create a new set of Diffie-Hellman parameters.

DHParameterSpec(java.math.BigInteger p, java.math.BigInteger g, int l)           Create a new set of Diffie-Hellman parameters.

 

Method Summary
java.math.BigInteger	getG()           Get the base generator, g.
int	getL()           Get the length of the private exponent, in bits.
java.math.BigInteger	getP()           Get the prime modulus, p.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

g

private java.math.BigInteger g

The base generator g.

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p

private java.math.BigInteger p

The prime modulus p.

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l

private int l

The length, in bits, of the private exponent.

Constructor Detail

DHParameterSpec

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

Create a new set of Diffie-Hellman parameters.

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DHParameterSpec

public DHParameterSpec(java.math.BigInteger p,
                       java.math.BigInteger g,
                       int l)

Create a new set of Diffie-Hellman parameters.

Method Detail

getG

public java.math.BigInteger getG()

Get the base generator, g.

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getL

public int getL()

Get the length of the private exponent, in bits.

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getP

public java.math.BigInteger getP()

Get the prime modulus, p.

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