Package java.security

Class SecureRandomSpi

java.lang.Object

java.security.SecureRandomSpi

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

OpenSSLRandom

public abstract class SecureRandomSpi
extends Object
implements Serializable

SecureRandomSpi is the Service Provider Interface (SPI) definition for SecureRandom.

See Also:

SecureRandom, Serialized Form

Constructor Summary

Constructors

Constructor	Description
SecureRandomSpi()

Method Summary

Modifier and Type	Method	Description
protected abstract byte[]	engineGenerateSeed(int numBytes)	Generates and returns the specified number of seed bytes, computed using the seed generation algorithm used by this SecureRandomSpi.
protected abstract void	engineNextBytes(byte[] bytes)	Generates and stores random bytes in the given byte[] for each array element.
protected abstract void	engineSetSeed(byte[] seed)	Reseeds this SecureRandomSpi instance with the specified seed.

Methods inherited from class java.lang.Object

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

Constructor Detail

SecureRandomSpi

public SecureRandomSpi()

Method Detail

engineSetSeed

protected abstract void engineSetSeed(byte[] seed)

Reseeds this SecureRandomSpi instance with the specified seed. The seed of this SecureRandomSpi instance is supplemented, not replaced.

Parameters:

seed - the new seed.

engineNextBytes

protected abstract void engineNextBytes(byte[] bytes)

Generates and stores random bytes in the given byte[] for each array element.

Parameters:

bytes - the byte[] to be filled with random bytes.

engineGenerateSeed

protected abstract byte[] engineGenerateSeed(int numBytes)

Generates and returns the specified number of seed bytes, computed using the seed generation algorithm used by this SecureRandomSpi.

Parameters:

numBytes - the number of seed bytes.

Returns:

the seed bytes