de.flexiprovider.core.desede
Class DESedeKeyGenerator

java.lang.Object
  |
  +--javax.crypto.KeyGeneratorSpi
        |
        +--de.flexiprovider.api.keys.SecretKeyGenerator
              |
              +--de.flexiprovider.core.desede.DESedeKeyGenerator

public class DESedeKeyGenerator

extends SecretKeyGenerator

This class is used to generate keys for the DESede block cipher.

Author:

Norbert Trummel, Sylvain Franke

Constructor Summary

DESedeKeyGenerator()

Method Summary

SecretKey	generateKey() Generate a DESede key.
void	init(AlgorithmParameterSpec params, SecureRandom random) Since DESede keys are of a fixed size and do not require any parameters, this method only sets the source of randomness.
void	init(int strength, SecureRandom random) Since DESede keys are of a fixed size, this method only sets the source of randomness.
void	init(SecureRandom random) Initialize the key generator with the given source of randomness.

Methods inherited from class de.flexiprovider.api.keys.SecretKeyGenerator

engineGenerateKey, engineInit, engineInit, engineInit, init, init, init

Methods inherited from class java.lang.Object

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

Constructor Detail

DESedeKeyGenerator

public DESedeKeyGenerator()

Method Detail

init

public void init(AlgorithmParameterSpec params,
                 SecureRandom random)

Since DESede keys are of a fixed size and do not require any parameters, this method only sets the source of randomness.

Overrides:

init in class SecretKeyGenerator

Parameters:

params - the parameters (not used)

random - the source of randomness

init

public void init(int strength,
                 SecureRandom random)

Since DESede keys are of a fixed size, this method only sets the source of randomness.

Overrides:

init in class SecretKeyGenerator

Parameters:

strength - the key strength (not used)

random - the source of randomness for this key generator

init

public void init(SecureRandom random)

Initialize the key generator with the given source of randomness.

Overrides:

init in class SecretKeyGenerator

Parameters:

random - the source of randomness

generateKey

public SecretKey generateKey()

Generate a DESede key.

Overrides:

generateKey in class SecretKeyGenerator

Returns:

the generated DESedeKey