Package org.europa.together.domain

Enum Class RNGAlgorithm

java.lang.Object

java.lang.Enum<RNGAlgorithm>

org.europa.together.domain.RNGAlgorithm

All Implemented Interfaces:

Serializable, Comparable<RNGAlgorithm>, Constable

public enum RNGAlgorithm
extends Enum<RNGAlgorithm>

Random Number Generator Algorithm.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
DRBG	An algorithm using DRBG mechanisms as defined in NIST SP 800-90Ar1.
NativePRNG	Obtains random numbers from the underlying native OS.
PKCS11	Obtains random numbers from the underlying installed and configured PKCS #11 library.
SHA1PRNG	The name of the pseudo-random number generation (PRNG) algorithm supplied by the SUN provider.

Method Summary

Modifier and Type	Method	Description
static RNGAlgorithm	valueOf(String name)	Returns the enum constant of this class with the specified name.
static RNGAlgorithm[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

SHA1PRNG

public static final RNGAlgorithm SHA1PRNG

The name of the pseudo-random number generation (PRNG) algorithm supplied by the SUN provider. This algorithm uses SHA-1 as the foundation of the PRNG. It computes the SHA-1 hash over a true-random seed value concatenated with a 64-bit counter which is incremented by 1 for each operation. From the 160-bit SHA-1 output, only 64 bits are used.

NativePRNG

public static final RNGAlgorithm NativePRNG

Obtains random numbers from the underlying native OS. No assertions are made as to the blocking nature of generating these numbers.

PKCS11

public static final RNGAlgorithm PKCS11

Obtains random numbers from the underlying installed and configured PKCS #11 library.

DRBG

public static final RNGAlgorithm DRBG

An algorithm using DRBG mechanisms as defined in NIST SP 800-90Ar1.

Method Details

values

public static RNGAlgorithm[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static RNGAlgorithm valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null