org.opensaml.common.impl
Class SecureRandomIdentifierGenerator

java.lang.Object
  org.opensaml.common.impl.SecureRandomIdentifierGenerator

All Implemented Interfaces:

IdentifierGenerator

public class SecureRandomIdentifierGenerator
extends Object
implements IdentifierGenerator

Generates identifiers using random data obtained from a SecureRandom instance.

Field Summary

private static SecureRandom

random Random number generator.

Constructor Summary

SecureRandomIdentifierGenerator()
Constructor.

SecureRandomIdentifierGenerator(String algorithm)
Constructor.

Method Summary

String	generateIdentifier() Generates a 16 byte identifier.
String	generateIdentifier(int size) Generates a random identifier.

Methods inherited from class java.lang.Object

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

Field Detail

random

private static SecureRandom random

Random number generator.

Constructor Detail

SecureRandomIdentifierGenerator

public SecureRandomIdentifierGenerator()
                                throws NoSuchAlgorithmException

Constructor.

Throws:

NoSuchAlgorithmException - thrown if the SHA1PRNG algorithm is not supported by the JVM

SecureRandomIdentifierGenerator

public SecureRandomIdentifierGenerator(String algorithm)
                                throws NoSuchAlgorithmException

Constructor.

Parameters:

algorithm - the random number generation algorithm to use

Throws:

NoSuchAlgorithmException - thrown if the algorithm is not supported by the JVM

Method Detail

generateIdentifier

public String generateIdentifier()

Generates a 16 byte identifier.

Specified by:

generateIdentifier in interface IdentifierGenerator

Returns:

an hex encoded identifier

generateIdentifier

public String generateIdentifier(int size)

Generates a random identifier.

Specified by:

generateIdentifier in interface IdentifierGenerator

Parameters:

size - number of bytes in the identifier

Returns:

the hex encoded identifier