javax.crypto.spec
Class DHGenParameterSpec

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

public class DHGenParameterSpec
extends java.lang.Object
implements java.security.spec.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.

See Also:
AlgorithmParameterSpec, java.security.AlgorithmParameterGenerator, DHParameterSpec

Field Summary
static java.lang.String ident
           
 
Constructor Summary
DHGenParameterSpec(int primeSize, int exponentSize)
          basic constructor
 
Method Summary
 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 inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

ident

public static final java.lang.String ident
Constructor Detail

DHGenParameterSpec

public DHGenParameterSpec(int primeSize,
                          int exponentSize)
basic constructor
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)