net.ninthtest.crypto.helix

Class HelixRandom

java.lang.Object

java.util.Random

net.ninthtest.crypto.helix.HelixRandom

All Implemented Interfaces:

Serializable

public class HelixRandom
extends Random

A PRNG that uses the Helix key stream to generate pseudorandom numbers.

Version:

1.1.0

Author:

Matthew Zipay (mattz@ninthtest.net)

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
HelixRandom() Creates a new HelixRandom using a generated seed.
HelixRandom(long seed) Creates a new HelixRandom using the provided seed.

Method Summary

Modifier and Type	Method and Description
protected int	next(int bits)
void	setSeed(long seed)

Methods inherited from class java.util.Random

doubles, doubles, doubles, doubles, ints, ints, ints, ints, longs, longs, longs, longs, nextBoolean, nextBytes, nextDouble, nextFloat, nextGaussian, nextInt, nextInt, nextLong

Methods inherited from class java.lang.Object

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

Constructor Detail

HelixRandom

public HelixRandom()

Creates a new HelixRandom using a generated seed.

HelixRandom

public HelixRandom(long seed)

Creates a new HelixRandom using the provided seed.

Parameters:

seed - the initial seed

Method Detail

setSeed

public void setSeed(long seed)

Overrides:

setSeed in class Random

Parameters:

seed -

See Also:

Random.setSeed(long)

next

protected int next(int bits)

Note that the bits argument is ignored by this implementation, as the next word of Helix key stream should already satisfy the contract of Random.next(int).

Overrides:

next in class Random

Parameters:

bits -

Returns:

See Also:

Random.next(int)