de.flexiprovider.core.mars
Class MARSKeyGenerator

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

public class MARSKeyGenerator

extends SecretKeyGenerator

This class is used to generate keys for the MARS block cipher. Values for the key are 128, 192, 256, 320, 384, and 448 bits, with the default being 128 bits.

Author:

Katja Rauch

Constructor Summary

MARSKeyGenerator()

Method Summary

SecretKey	generateKey() Generate a MARS key.
void	init(AlgorithmParameterSpec params, SecureRandom random) Initialize the key generator with the given parameters (which have to be an instance of MARSKeyGenParameterSpec) and a source of randomness.
void	init(int keySize, SecureRandom random) Initialize the key generator with the given key size and 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

MARSKeyGenerator

public MARSKeyGenerator()

Method Detail

init

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

Initialize the key generator with the given parameters (which have to be an instance of MARSKeyGenParameterSpec) and a source of randomness. If the parameters are null, the default parameters are used.

Overrides:

init in class SecretKeyGenerator

Parameters:

params - the parameters

random - the source of randomness

Throws:

InvalidAlgorithmParameterException - if the parameters are not an instance of MARSKeyGenParameterSpec.

init

public void init(int keySize,
                 SecureRandom random)

Initialize the key generator with the given key size and source of randomness.

Overrides:

init in class SecretKeyGenerator

Parameters:

keySize - the key size

random - the source of randomness

init

public void init(SecureRandom random)

Initialize the key generator with the given source of randomness. The default key size is chosen (see MARSKeyGenParameterSpec).

Overrides:

init in class SecretKeyGenerator

Parameters:

random - the source of randomness

generateKey

public SecretKey generateKey()

Generate a MARS key.

Overrides:

generateKey in class SecretKeyGenerator

Returns:

the generated MARSKey