Class JavaCryptoRandom

java.lang.Object

org.apache.commons.crypto.random.JavaCryptoRandom

All Implemented Interfaces:

Closeable, AutoCloseable, CryptoRandom

final class JavaCryptoRandom
extends Object
implements CryptoRandom

A CryptoRandom of Java implementation.

This class is not public/protected so does not appear in the main Javadoc Please ensure that property use is documented in the enum CryptoRandomFactory.RandomProvider

Field Summary

Fields

Modifier and Type	Field	Description
private final SecureRandom	instance

Constructor Summary

Constructors

Constructor	Description
JavaCryptoRandom(Properties properties)	Constructs a JavaCryptoRandom.

Method Summary

Modifier and Type	Method	Description
void	close()	Overrides AutoCloseable.close().
protected int	next(int numBits)	Overrides Random#next().
void	nextBytes(byte[] bytes)	Overrides CryptoRandom.nextBytes(byte[]).

Methods inherited from class Object

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

Field Details

instance

private final SecureRandom instance

Constructor Details

JavaCryptoRandom

public JavaCryptoRandom(Properties properties)

Constructs a JavaCryptoRandom.

Parameters:

properties - the configuration properties. Uses the key CryptoRandomFactory.JAVA_ALGORITHM_KEY to get the name of the algorithm, with a default of CryptoRandomFactory.JAVA_ALGORITHM_DEFAULT

Method Details

close

public void close()

Overrides AutoCloseable.close(). For JavaCryptoRandom, we don't need to recycle resource.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

next

protected int next(int numBits)

Overrides Random#next(). Generates an integer containing the user-specified number of random bits(right justified, with leading zeros).

Parameters:

numBits - number of random bits to be generated, where 0 <= numBits <= 32.

Returns:

int an int containing the user-specified number of random bits (right justified, with leading zeros).

nextBytes

public void nextBytes(byte[] bytes)

Overrides CryptoRandom.nextBytes(byte[]). Generates random bytes and places them into a user-supplied byte array. The number of random bytes produced is equal to the length of the byte array.

Specified by:

nextBytes in interface CryptoRandom

Parameters:

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