java.security

Class KeyPairGeneratorSpi

java.lang.Object

java.security.KeyPairGeneratorSpi

Direct Known Subclasses:

KeyPairGenerator

public abstract class KeyPairGeneratorSpi
extends Object

KeyPairGeneratorSpi is the interface used to generate key pairs for security algorithms.

Constructor Summary

Constructors

Constructor and Description
KeyPairGeneratorSpi() Constructs a new KeyPairGeneratorSpi

Method Summary

Methods

Modifier and Type	Method and Description
protected Object	clone() We override clone here to make it accessible for use by DummyKeyPairGenerator.
abstract KeyPair	generateKeyPair() Generates a KeyPair according the rules for the algorithm.
void	initialize(AlgorithmParameterSpec params, SecureRandom random) Initialize the KeyPairGeneratorSpi with the specified AlgorithmParameterSpec and source of randomness This is a concrete method.
abstract void	initialize(int keysize, SecureRandom random) Initialize the KeyPairGeneratorSpi with the specified key size and source of randomness

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyPairGeneratorSpi

public KeyPairGeneratorSpi()

Constructs a new KeyPairGeneratorSpi

Method Detail

initialize

public abstract void initialize(int keysize,
              SecureRandom random)

Initialize the KeyPairGeneratorSpi with the specified key size and source of randomness

Parameters:

keysize - size of the key to generate

random - A SecureRandom source of randomness

initialize

public void initialize(AlgorithmParameterSpec params,
              SecureRandom random)
                throws InvalidAlgorithmParameterException

Initialize the KeyPairGeneratorSpi with the specified AlgorithmParameterSpec and source of randomness This is a concrete method. It may be overridden by the provider and if the AlgorithmParameterSpec class is invalid throw InvalidAlgorithmParameterException. By default this method just throws UnsupportedOperationException.

Parameters:

params - A AlgorithmParameterSpec to intialize with

random - A SecureRandom source of randomness

Throws:

InvalidAlgorithmParameterException

generateKeyPair

public abstract KeyPair generateKeyPair()

Generates a KeyPair according the rules for the algorithm. Unless intialized, algorithm defaults will be used. It creates a unique key pair each time.

Returns:

a key pair

clone

protected Object clone()
                throws CloneNotSupportedException

We override clone here to make it accessible for use by DummyKeyPairGenerator.

Overrides:

clone in class Object

Returns:

a copy of the Object

Throws:

CloneNotSupportedException - If this Object does not implement Cloneable

See Also:

Cloneable