de.alpharogroup.crypto.factories

Class SecretKeyFactoryExtensions

java.lang.Object

de.alpharogroup.crypto.factories.SecretKeyFactoryExtensions

public class SecretKeyFactoryExtensions
extends Object

The factory class SecretKeyFactory holds methods for creating SecretKeySpec objects.

Constructor Summary

Constructors

Constructor and Description
SecretKeyFactoryExtensions()

Method Summary

Modifier and Type	Method and Description
static SecretKey	newSecretKey(char[] password, String algorithm) Factory method for creating a new SecretKey from the given password and algorithm.
static SecretKeyFactory	newSecretKeyFactory(String algorithm) Factory method for creating a new SecretKeyFactory from the given algorithm.
static SecretKeySpec	newSecretKeySpec(byte[] secretKey, String algorithm) Factory method for creating a new SecretKeySpec from the given algorithm and the given secret key as byte array.
static SecretKeySpec	newSecretKeySpec(String algorithm, int keyLength) Factory method for creating a new SecretKeySpec from the given algorithm and the given key length.

Methods inherited from class java.lang.Object

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

Constructor Detail

SecretKeyFactoryExtensions

public SecretKeyFactoryExtensions()

Method Detail

newSecretKeyFactory

public static SecretKeyFactory newSecretKeyFactory(String algorithm)
                                            throws NoSuchAlgorithmException

Factory method for creating a new SecretKeyFactory from the given algorithm.

Parameters:

algorithm - the algorithm

Returns:

the new SecretKeyFactory from the given algorithm.

Throws:

NoSuchAlgorithmException - is thrown if instantiation of the SecretKeyFactory object fails.

newSecretKeySpec

public static SecretKeySpec newSecretKeySpec(String algorithm,
                                             int keyLength)
                                      throws NoSuchAlgorithmException

Factory method for creating a new SecretKeySpec from the given algorithm and the given key length.

Parameters:

algorithm - the algorithm

keyLength - the key length

Returns:

the new SecretKeySpec from the given algorithm and the given key length.

Throws:

NoSuchAlgorithmException - is thrown if instantiation of the SecretKeyFactory object fails.

newSecretKeySpec

public static SecretKeySpec newSecretKeySpec(byte[] secretKey,
                                             String algorithm)
                                      throws NoSuchAlgorithmException

Factory method for creating a new SecretKeySpec from the given algorithm and the given secret key as byte array.

Parameters:

algorithm - the algorithm

secretKey - the secret key

Returns:

the new SecretKeySpec from the given algorithm and the given secret key.

Throws:

NoSuchAlgorithmException - the no such algorithm exception

newSecretKey

public static SecretKey newSecretKey(char[] password,
                                     String algorithm)
                              throws NoSuchAlgorithmException,
                                     InvalidKeySpecException

Factory method for creating a new SecretKey from the given password and algorithm.

Parameters:

password - the password

algorithm - the algorithm

Returns:

the new SecretKey from the given password and algorithm.

Throws:

NoSuchAlgorithmException - is thrown if instantiation of the SecretKeyFactory object fails.

InvalidKeySpecException - is thrown if generation of the SecretKey object fails.