de.flexiprovider.core.idea
Class IDEAKeyGenerator

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

public class IDEAKeyGenerator

extends SecretKeyGenerator

This class is used to generate keys for the IDEA block cipher. The IDEA key size is 128 bits.

Author:

Ralph Kuhnert, Anders Adamson

Field Summary

static int

IDEA_KEY_SIZE The IDEA key size (16 bytes)

Constructor Summary

IDEAKeyGenerator()

Method Summary

SecretKey	generateKey() Generate an IDEA key.
void	init(AlgorithmParameterSpec params, SecureRandom random) Initialize the key generator.
void	init(int keySize, SecureRandom random) Initialize the key generator.
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

Field Detail

IDEA_KEY_SIZE

public static final int IDEA_KEY_SIZE

The IDEA key size (16 bytes)

Constructor Detail

IDEAKeyGenerator

public IDEAKeyGenerator()

Method Detail

init

public void init(AlgorithmParameterSpec params,
                 SecureRandom random)

Initialize the key generator. Since IDEA 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 keySize,
                 SecureRandom random)

Initialize the key generator. Since IDEA keys are of a fixed size, this method only sets the source of randomness.

Overrides:

init in class SecretKeyGenerator

Parameters:

keySize - the key size (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 an IDEA key.

Overrides:

generateKey in class SecretKeyGenerator

Returns:

the generated IDEAKey