Package jadex.ipc.impl.security.random

Class SecureThreadedRandom

java.lang.Object

java.util.Random

java.security.SecureRandom

jadex.ipc.impl.security.random.SecureThreadedRandom

All Implemented Interfaces:

Serializable, RandomGenerator

public class SecureThreadedRandom
extends SecureRandom

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

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.random.RandomGenerator

RandomGenerator.ArbitrarilyJumpableGenerator, RandomGenerator.JumpableGenerator, RandomGenerator.LeapableGenerator, RandomGenerator.SplittableGenerator, RandomGenerator.StreamableGenerator

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor	Description
SecureThreadedRandom()	Creates the wrapper.

Method Summary

Modifier and Type	Method	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, getInstance, getInstance, getInstance, getInstanceStrong, getParameters, getProvider, getSeed, next, nextBytes, reseed, reseed, setSeed, toString

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, wait, wait, wait

Methods inherited from interface java.util.random.RandomGenerator

isDeprecated, nextDouble, nextDouble, nextExponential, nextFloat, nextFloat, nextGaussian, nextInt, nextLong, nextLong

Field Details

prngs

protected SecureRandom[] prngs

The random number generators.

threadingmask

protected int threadingmask

Mask for distributing threads.

Constructor Details

SecureThreadedRandom

public SecureThreadedRandom()

Creates the wrapper.

Method Details

nextBoolean

public boolean nextBoolean()

Wrapper method.

Specified by:

nextBoolean in interface RandomGenerator

Overrides:

nextBoolean in class Random

nextBytes

public void nextBytes(byte[] bytes)

Wrapper method.

Specified by:

nextBytes in interface RandomGenerator

Overrides:

nextBytes in class SecureRandom

nextDouble

public double nextDouble()

Wrapper method.

Specified by:

nextDouble in interface RandomGenerator

Overrides:

nextDouble in class Random

nextFloat

public float nextFloat()

Wrapper method.

Specified by:

nextFloat in interface RandomGenerator

Overrides:

nextFloat in class Random

nextGaussian

public double nextGaussian()

Wrapper method.

Specified by:

nextGaussian in interface RandomGenerator

Overrides:

nextGaussian in class Random

nextInt

public int nextInt()

Wrapper method.

Specified by:

nextInt in interface RandomGenerator

Overrides:

nextInt in class Random

nextInt

public int nextInt(int bound)

Wrapper method.

Specified by:

nextInt in interface RandomGenerator

Overrides:

nextInt in class Random

nextLong

public long nextLong()

Wrapper method.

Specified by:

nextLong in interface RandomGenerator

Overrides:

nextLong in class Random

generateSeed

public byte[] generateSeed(int numbytes)

Generates a seed value from OS source.

Overrides:

generateSeed in class SecureRandom

setSeed

public void setSeed(long seed)

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

Overrides:

setSeed in class SecureRandom