Class DHGenParameterSpec

java.lang.Object
- javax.crypto.spec.DHGenParameterSpec

All Implemented Interfaces:: AlgorithmParameterSpec

public class DHGenParameterSpec
extends Object
implements AlgorithmParameterSpec

This class specifies the set of parameters used for generating Diffie-Hellman (system) parameters for use in Diffie-Hellman key agreement. This is typically done by a central authority.

The central authority, after computing the parameters, must send this information to the parties looking to agree on a secret key.

Since:: 1.4
See Also:: DHParameterSpec

Constructor Summary

Constructors
Constructor	Description
`DHGenParameterSpec(int primeSize, int exponentSize)`	Constructs a parameter set for the generation of Diffie-Hellman (system) parameters.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`getExponentSize()`	Returns the size in bits of the random exponent (private value).
`int`	`getPrimeSize()`	Returns the size in bits of the prime modulus.

Methods declared in class java.lang.Object

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

Constructor Detail

DHGenParameterSpec

public DHGenParameterSpec(int primeSize,
                          int exponentSize)

Constructs a parameter set for the generation of Diffie-Hellman (system) parameters. The constructed parameter set can be used to initialize an AlgorithmParameterGenerator object for the generation of Diffie-Hellman parameters.

Parameters:: primeSize - the size (in bits) of the prime modulus.; exponentSize - the size (in bits) of the random exponent.

Method Detail

getPrimeSize

public int getPrimeSize()

Returns the size in bits of the prime modulus.

Returns:: the size in bits of the prime modulus

getExponentSize

public int getExponentSize()

Returns the size in bits of the random exponent (private value).

Returns:: the size in bits of the random exponent (private value)