org.bouncycastle.crypto.general

Class GeneralSecureRandom

java.lang.Object

java.util.Random

java.security.SecureRandom

org.bouncycastle.crypto.general.GeneralSecureRandom

All Implemented Interfaces:

java.io.Serializable

public final class GeneralSecureRandom
extends java.security.SecureRandom

Base class for DRBG/RNG SecureRandom implementations that use non-FIPS approved algorithms.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
byte[]	generateSeed(int numBytes)
java.lang.String	getAlgorithm() Return the algorithm name
int	getBlockSize() Return the block size of the underlying DRBG
void	nextBytes(byte[] bytes)
void	nextBytes(byte[] bytes, byte[] additionalInput)
void	reseed() Force a reseed.
void	reseed(byte[] additionalInput) Force a reseed with additional input.
void	setSeed(byte[] seed)
void	setSeed(long seed)

Methods inherited from class java.security.SecureRandom

getInstance, getInstance, getInstance, getInstanceStrong, getProvider, getSeed, next

Methods inherited from class java.util.Random

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

Methods inherited from class java.lang.Object

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

Method Detail

setSeed

public void setSeed(byte[] seed)

Overrides:

setSeed in class java.security.SecureRandom

setSeed

public void setSeed(long seed)

Overrides:

setSeed in class java.security.SecureRandom

getAlgorithm

public java.lang.String getAlgorithm()

Return the algorithm name

Overrides:

getAlgorithm in class java.security.SecureRandom

nextBytes

public void nextBytes(byte[] bytes)

Overrides:

nextBytes in class java.security.SecureRandom

nextBytes

public void nextBytes(byte[] bytes,
                      byte[] additionalInput)

generateSeed

public byte[] generateSeed(int numBytes)

Overrides:

generateSeed in class java.security.SecureRandom

getBlockSize

public int getBlockSize()

Return the block size of the underlying DRBG

Returns:

number of bits produced each cycle.

reseed

public void reseed()

Force a reseed.

reseed

public void reseed(byte[] additionalInput)

Force a reseed with additional input.

Parameters:

additionalInput - additional input to be used in conjunction with reseed.