net.ninthtest.crypto.provider.helix

Class HelixSecureRandom

java.lang.Object

java.security.SecureRandomSpi

net.ninthtest.crypto.provider.helix.HelixSecureRandom

All Implemented Interfaces:

Serializable

public final class HelixSecureRandom
extends SecureRandomSpi

This class is a pseudo-random number generator (PRNG) that uses the Helix key stream as a source of randomness.

Version:

1.1.0

Author:

Matthew Zipay (mattz@ninthtest.net)

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
HelixSecureRandom() Creates a new HelixSecureRandom and performs the provider self-integrity check.

Method Summary

Modifier and Type	Method and Description
protected byte[]	engineGenerateSeed(int numBytes) Returns the specified number of pseudo-random seed bytes.
protected void	engineNextBytes(byte[] bytes) Generates a user-specified number of random bytes.
protected void	engineSetSeed(byte[] seed) (Re-)Seeds this pseudo-random number generator.

Methods inherited from class java.lang.Object

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

Constructor Detail

HelixSecureRandom

public HelixSecureRandom()

Creates a new HelixSecureRandom and performs the provider self-integrity check.

Method Detail

engineGenerateSeed

protected byte[] engineGenerateSeed(int numBytes)

Returns the specified number of pseudo-random seed bytes.

Specified by:

engineGenerateSeed in class SecureRandomSpi

Parameters:

numBytes - the number of seed bytes to generate (positive whole number or zero)

Returns:

a byte array of length numBytes

See Also:

SecureRandomSpi.engineGenerateSeed(int)

engineNextBytes

protected void engineNextBytes(byte[] bytes)

Generates a user-specified number of random bytes.

Specified by:

engineNextBytes in class SecureRandomSpi

Parameters:

bytes - the array to be filled in with random bytes

See Also:

SecureRandomSpi.engineNextBytes(byte[])

engineSetSeed

protected void engineSetSeed(byte[] seed)

(Re-)Seeds this pseudo-random number generator.

The seed argument is used to supplement (not replace) the existing seed so that repeated calls do not reduce randomness.

If seed is empty, this method will effectively use the internal seeding mechanism to see the PRNG.

Specified by:

engineSetSeed in class SecureRandomSpi

Parameters:

seed - new bytes used to supplement the existing seed value

See Also:

SecureRandomSpi.engineSetSeed(byte[])