ThreadedSeedGenerator (prov 1.79 API)

java.lang.Object

org.bouncycastle.crypto.prng.ThreadedSeedGenerator

public class ThreadedSeedGenerator extends Object

A thread based seed generator - one source of randomness.

Based on an idea from Marcus Lippert.

Constructor Summary

Constructors

Constructor

Description

ThreadedSeedGenerator()
Method Summary

Modifier and Type

Method

Description

byte[]

generateSeed(int numBytes, boolean fast)

Generate seed bytes.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- ThreadedSeedGenerator
  
  public ThreadedSeedGenerator()
Method Details
- generateSeed
  
  public byte[] generateSeed(int numBytes, boolean fast)
  
  Generate seed bytes. Set fast to false for best quality.
  If fast is set to true, the code should be round about 8 times faster when generating a long sequence of random bytes. 20 bytes of random values using the fast mode take less than half a second on a Nokia e70. If fast is set to false, it takes round about 2500 ms.
  
  Parameters:
  
  numBytes - the number of bytes to generate
  
  fast - true if fast mode should be used