jadex.commons.security.random

Class SecureThreadedRandom

java.lang.Object

java.util.Random

java.security.SecureRandom

jadex.commons.security.random.SecureThreadedRandom

All Implemented Interfaces:

java.io.Serializable

public class SecureThreadedRandom
extends java.security.SecureRandom

Wrapper for quick multi-threaded PRNG access using multiple PRNGs.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected java.security.SecureRandom[]	prngs The random number generators.
protected int	threadingmask Mask for distributing threads.

Constructor Summary

Constructors

Constructor and Description
SecureThreadedRandom() Creates the wrapper.

Method Summary

Modifier and Type	Method and Description
byte[]	generateSeed(int numbytes) Generates a seed value from OS source.
boolean	nextBoolean() Wrapper method.
void	nextBytes(byte[] bytes) Wrapper method.
double	nextDouble() Wrapper method.
float	nextFloat() Wrapper method.
double	nextGaussian() Wrapper method.
int	nextInt() Wrapper method.
int	nextInt(int bound) Wrapper method.
long	nextLong() Wrapper method.
void	setSeed(long seed) Wrapper method.

Methods inherited from class java.security.SecureRandom

getAlgorithm, getInstance, getInstance, getInstance, getInstanceStrong, getProvider, getSeed, next, setSeed

Methods inherited from class java.util.Random

doubles, doubles, doubles, doubles, ints, ints, ints, ints, longs, longs, longs, longs

Methods inherited from class java.lang.Object

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

Field Detail

prngs

protected java.security.SecureRandom[] prngs

The random number generators.

threadingmask

protected int threadingmask

Mask for distributing threads.

Constructor Detail

SecureThreadedRandom

public SecureThreadedRandom()

Creates the wrapper.

Method Detail

nextBoolean

public boolean nextBoolean()

Wrapper method.

Overrides:

nextBoolean in class java.util.Random

nextBytes

public void nextBytes(byte[] bytes)

Wrapper method.

Overrides:

nextBytes in class java.security.SecureRandom

nextDouble

public double nextDouble()

Wrapper method.

Overrides:

nextDouble in class java.util.Random

nextFloat

public float nextFloat()

Wrapper method.

Overrides:

nextFloat in class java.util.Random

nextGaussian

public double nextGaussian()

Wrapper method.

Overrides:

nextGaussian in class java.util.Random

nextInt

public int nextInt()

Wrapper method.

Overrides:

nextInt in class java.util.Random

nextInt

public int nextInt(int bound)

Wrapper method.

Overrides:

nextInt in class java.util.Random

nextLong

public long nextLong()

Wrapper method.

Overrides:

nextLong in class java.util.Random

generateSeed

public byte[] generateSeed(int numbytes)

Generates a seed value from OS source.

Overrides:

generateSeed in class java.security.SecureRandom

setSeed

public void setSeed(long seed)

Wrapper method. Warning: This is useless, included for completeness.

Overrides:

setSeed in class java.security.SecureRandom