java.security
Class SecureRandomSpi

java.lang.Object
  |
  +--java.security.SecureRandomSpi

All Implemented Interfaces:

Serializable

public abstract class SecureRandomSpi

extends Object

implements Serializable

Untamed:

See Also:

Serialized Form

Constructor Summary

SecureRandomSpi()
Enabled:

Method Summary

protected abstract byte[]	engineGenerateSeed(int numBytes) Returns the given number of seed bytes.
protected abstract void	engineNextBytes(byte[] bytes) Generates a user-specified number of random bytes.
protected abstract void	engineSetSeed(byte[] seed) Reseeds this random object.

Methods inherited from class java.lang.Object

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

Constructor Detail

SecureRandomSpi

public SecureRandomSpi()

Enabled:

Method Detail

engineSetSeed

protected abstract void engineSetSeed(byte[] seed)

Reseeds this random object. The given seed supplements, rather than replaces, the existing seed. Thus, repeated calls are guaranteed never to reduce randomness.

Parameters:

seed - the seed.

engineNextBytes

protected abstract void engineNextBytes(byte[] bytes)

Generates a user-specified number of random bytes.

Parameters:

bytes - the array to be filled in with random bytes.

engineGenerateSeed

protected abstract byte[] engineGenerateSeed(int numBytes)

Returns the given number of seed bytes. This call may be used to seed other random number generators.

Parameters:

numBytes - the number of seed bytes to generate.

Returns:

the seed bytes.