org.globalse.arena.frag.security
Class MD5Hash

java.lang.Object
  |
  +--org.globalse.arena.frag.security.MD5Hash

public class MD5Hash

extends java.lang.Object

This class creates an MD5 hash from a string (password for example). To get an instance of the class use the getInstance() method. To hash a string use hashData() Method. $Id: MD5Hash.html,v 1.1 2003/02/12 18:06:20 schoecke Exp $

Method Summary
static MD5Hash	getInstance()           This returns the singleton instance of the class
java.lang.String	hashData(byte[] dataToHash)           The main method of the class which needs to be called for hashing the data
java.lang.String	hexStringFromBytes(byte[] b)           Calculates hexadecimal value of the hash from the byte array of the hashed data

 

Methods inherited from class java.lang.Object

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

 

Method Detail

getInstance

public static MD5Hash getInstance()
                           throws java.security.NoSuchAlgorithmException

This returns the singleton instance of the class

Returns:

an instance of the class

Throws:

java.security.NoSuchAlgorithmException - needed by the java api's

hashData

public java.lang.String hashData(byte[] dataToHash)

The main method of the class which needs to be called for hashing the data

Parameters:

dataToHash - byte[] data for hashing

Returns:

a String with the hash code

hexStringFromBytes

public java.lang.String hexStringFromBytes(byte[] b)

Calculates hexadecimal value of the hash from the byte array of the hashed data

Parameters:

b - bytes[] bytes which are transformed in hex.

Returns:

a string of the hexadecimal value of the hash