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DHGenParameterSpec

public class DHGenParameterSpec
extends Object implements AlgorithmParameterSpec

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


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.

See also:

Summary

Public constructors

DHGenParameterSpec(int primeSize, int exponentSize)

Constructs a parameter set for the generation of Diffie-Hellman (system) parameters.

Public methods

int getExponentSize()

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

int getPrimeSize()

Returns the size in bits of the prime modulus.

Inherited methods

From class java.lang.Object

Public constructors

DHGenParameterSpec

Added in API level 1
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 int: the size (in bits) of the prime modulus.
exponentSize int: the size (in bits) of the random exponent.

Public methods

getExponentSize

Added in API level 1
int getExponentSize ()

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

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

getPrimeSize

Added in API level 1
int getPrimeSize ()

Returns the size in bits of the prime modulus.

Returns
int the size in bits of the prime modulus
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