javax.crypto.spec: public class: DHGenParameterSpec

javax.crypto.spec
public class: DHGenParameterSpec [javadoc | source]

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

All Implemented Interfaces:
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.

Also see:

DHParameterSpec

author: Jan - Luehe

since: 1.4 -

Constructor:

Constructor:
public DHGenParameterSpec(int primeSize, int exponentSize) { this.primeSize = primeSize; this.exponentSize = 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.

 public DHGenParameterSpec(int primeSize,
    int exponentSize) {
        this.primeSize = primeSize;
        this.exponentSize = exponentSize;
}

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

AlgorithmParameterGenerator

Parameters:

primeSize - the size (in bits) of the prime modulus.

exponentSize - the size (in bits) of the random exponent.

Method from javax.crypto.spec.DHGenParameterSpec Summary:
getExponentSize, getPrimeSize

Methods from java.lang.Object:
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from javax.crypto.spec.DHGenParameterSpec Detail:
public int getExponentSize() { return this.exponentSize; } Returns the size in bits of the random exponent (private value).
public int getPrimeSize() { return this.primeSize; } Returns the size in bits of the prime modulus.

Method from javax.crypto.spec.DHGenParameterSpec Detail:

 public int getExponentSize() {
        return this.exponentSize;
}

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

 public int getPrimeSize() {
        return this.primeSize;
}

Returns the size in bits of the prime modulus.