Package org.bouncycastle.crypto.prng

Class FixedSecureRandom

java.lang.Object

java.util.Random

java.security.SecureRandom

org.bouncycastle.crypto.prng.FixedSecureRandom

All Implemented Interfaces:

Serializable, RandomGenerator

public class FixedSecureRandom
extends SecureRandom

A secure random that returns pre-seeded data to calls of nextBytes() or generateSeed().

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

Constructor Summary

Constructors

Constructor	Description
FixedSecureRandom(boolean intPad, byte[] value)	Pad the data on integer boundaries.
FixedSecureRandom(boolean intPad, byte[][] values)	Pad the data on integer boundaries.
FixedSecureRandom(byte[] value)
FixedSecureRandom(byte[][] values)

Method Summary

Modifier and Type	Method	Description
byte[]	generateSeed(int numBytes)
boolean	isExhausted()
void	nextBytes(byte[] bytes)
int	nextInt()
long	nextLong()

Methods inherited from class java.security.SecureRandom

getAlgorithm, getInstance, getInstance, getInstance, getInstance, getInstance, getInstance, getInstanceStrong, getParameters, getProvider, getSeed, next, nextBytes, reseed, reseed, setSeed, setSeed, toString

Methods inherited from class java.util.Random

doubles, doubles, doubles, doubles, from, ints, ints, ints, ints, longs, longs, longs, longs, nextBoolean, nextDouble, nextFloat, nextGaussian, nextInt

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

Constructor Details

FixedSecureRandom

public FixedSecureRandom(byte[] value)

FixedSecureRandom

public FixedSecureRandom(byte[][] values)

FixedSecureRandom

public FixedSecureRandom(boolean intPad,
 byte[] value)

Pad the data on integer boundaries. This is necessary for the classpath project's BigInteger implementation.

FixedSecureRandom

public FixedSecureRandom(boolean intPad,
 byte[][] values)

Pad the data on integer boundaries. This is necessary for the classpath project's BigInteger implementation.

Method Details

nextBytes

public void nextBytes(byte[] bytes)

Specified by:

nextBytes in interface RandomGenerator

Overrides:

nextBytes in class SecureRandom

generateSeed

public byte[] generateSeed(int numBytes)

Overrides:

generateSeed in class SecureRandom

nextInt

public int nextInt()

Specified by:

nextInt in interface RandomGenerator

Overrides:

nextInt in class Random

nextLong

public long nextLong()

Specified by:

nextLong in interface RandomGenerator

Overrides:

nextLong in class Random

isExhausted

public boolean isExhausted()