Module seppiko.commons.utils

Package org.seppiko.commons.utils.codec

Class HashCryptUtil

java.lang.Object

org.seppiko.commons.utils.codec.HashCryptUtil

public class HashCryptUtil
extends Object

Hash Crypt Util

Author:

Leonard Woo

Constructor Summary

Constructors

Constructor	Description
HashCryptUtil()

Method Summary

Modifier and Type	Method	Description
static byte[]	hmacCrypt(HmacAlgorithms algorithm, byte[] data, byte[] key)	Simplifies common Mac tasks.
static byte[]	mdCrypt(MessageDigestAlgorithms algorithm, byte[] data)	Simplifies common MessageDigest tasks.
static byte[]	pbkdf2Crypt(HmacAlgorithms algorithm, char[] password, byte[] salt, int iterations, int keySize)	Simplifies common PBKDF2 tasks

Methods inherited from class java.lang.Object

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

Constructor Details

HashCryptUtil

public HashCryptUtil()

Method Details

mdCrypt

public static byte[] mdCrypt(MessageDigestAlgorithms algorithm,
 byte[] data)
                      throws IllegalArgumentException

Simplifies common MessageDigest tasks.

Parameters:

algorithm - Message Digest Algorithm

data - data to hash

Returns:

complete hash value

Throws:

IllegalArgumentException - when a NoSuchAlgorithmException is caught.

hmacCrypt

public static byte[] hmacCrypt(HmacAlgorithms algorithm,
 byte[] data,
 byte[] key)
                        throws InvalidKeyException,
IllegalArgumentException

Simplifies common Mac tasks.

Parameters:

algorithm - Hmac Algorithm

data - data to hash with key

key - the keyed digest

Returns:

complete hash value including key

Throws:

InvalidKeyException - if the given key is null or does not match the allowed pattern.

IllegalArgumentException - when a NoSuchAlgorithmException is caught.

pbkdf2Crypt

public static byte[] pbkdf2Crypt(HmacAlgorithms algorithm,
 char[] password,
 byte[] salt,
 int iterations,
 int keySize)

Simplifies common PBKDF2 tasks

Parameters:

algorithm - PBKDF2With<Hmac Algorithm>

password - raw password

salt - password salt

iterations - iteration

keySize - key size

Returns:

PBKDF2With<Hmac Algorithm> password

Throws:

IllegalArgumentException - password or salt is null, number is wrong or could not execute task.