Class RandomSupport

java.lang.Object

zeroecho.core.util.RandomSupport

public final class RandomSupport
extends Object

Provides the authoritative process-wide cryptographic random source.

Method Summary

Modifier and Type	Method	Description
static byte[]	generateRandom(byte[] buffer)	Fills the supplied array with random bytes.
static byte[]	generateRandom(int size)	Allocates and fills a random byte array.
static SecureRandom	getRandom()	Returns the shared thread-safe random source.
static int	nextInt(int bound)	Returns a uniform value below the bound.

Methods inherited from class Object

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

Method Details

getRandom

public static SecureRandom getRandom()

Returns the shared thread-safe random source.

Returns:

shared secure random generator

generateRandom

public static byte[] generateRandom(int size)

Allocates and fills a random byte array.

Parameters:

size - required array length

Returns:

random bytes

generateRandom

public static byte[] generateRandom(byte[] buffer)

Fills the supplied array with random bytes.

Parameters:

buffer - destination array

Returns:

buffer

nextInt

public static int nextInt(int bound)

Returns a uniform value below the bound.

Parameters:

bound - exclusive positive upper bound

Returns:

generated value