org.bouncycastle.crypto.params
Class DHPrivateKeyParameters

java.lang.Object
  org.bouncycastle.crypto.params.AsymmetricKeyParameter
      org.bouncycastle.crypto.params.DHKeyParameters
          org.bouncycastle.crypto.params.DHPrivateKeyParameters

All Implemented Interfaces:

CipherParameters, javax.security.auth.Destroyable

public class DHPrivateKeyParameters

extends DHKeyParameters

implements javax.security.auth.Destroyable

Constructor Summary

DHPrivateKeyParameters(java.math.BigInteger x, DHParameters params)

Method Summary

void	destroy() Destroy this object, dropping its reference to the private value.
boolean	equals(java.lang.Object obj)
java.math.BigInteger	getX()
int	hashCode()
boolean	isDestroyed()

Methods inherited from class org.bouncycastle.crypto.params.DHKeyParameters

getParameters

Methods inherited from class org.bouncycastle.crypto.params.AsymmetricKeyParameter

isPrivate

Methods inherited from class java.lang.Object

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

Constructor Detail

DHPrivateKeyParameters

public DHPrivateKeyParameters(java.math.BigInteger x,
                              DHParameters params)

Method Detail

getX

public java.math.BigInteger getX()

hashCode

public int hashCode()

Overrides:

hashCode in class DHKeyParameters

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class DHKeyParameters

destroy

public void destroy()

Destroy this object, dropping its reference to the private value.

As BigInteger is immutable the private value cannot be zeroized in place; destruction drops the internal reference so the value becomes unreachable (cleared on garbage collection). The (public) domain parameters are retained. After destruction getX() throws IllegalStateException, hashCode() retains its pre-destruction value and the object is equal only to itself.

Specified by:

destroy in interface javax.security.auth.Destroyable

isDestroyed

public boolean isDestroyed()

Specified by:

isDestroyed in interface javax.security.auth.Destroyable