org.springframework.security.providers.encoding
Class Md4PasswordEncoder

java.lang.Object
  org.springframework.security.providers.encoding.BasePasswordEncoder
      org.springframework.security.providers.encoding.BaseDigestPasswordEncoder
          org.springframework.security.providers.encoding.Md4PasswordEncoder

All Implemented Interfaces:

PasswordEncoder

public class Md4PasswordEncoder
extends BaseDigestPasswordEncoder

MD4 implementation of PasswordEncoder.

If a null password is presented, it will be treated as an empty String ("") password.

As MD4 is a one-way hash, the salt can contain any characters.

NOTE: This password encoder is only included for backwards compatability with legacy applications, it's not secure, don't use it for anything new!

Author:

Alan Stewart

Constructor Summary

Md4PasswordEncoder()

Method Summary

String	encodePassword(String rawPass, Object salt) Encodes the rawPass using an MD4 message digest.
String	getAlgorithm()
boolean	isPasswordValid(String encPass, String rawPass, Object salt) Takes a previously encoded password and compares it with a raw password after mixing in the salt and encoding that value.

Methods inherited from class org.springframework.security.providers.encoding.BaseDigestPasswordEncoder

getEncodeHashAsBase64, setEncodeHashAsBase64

Methods inherited from class org.springframework.security.providers.encoding.BasePasswordEncoder

demergePasswordAndSalt, mergePasswordAndSalt

Methods inherited from class java.lang.Object

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

Constructor Detail

Md4PasswordEncoder

public Md4PasswordEncoder()

Method Detail

encodePassword

public String encodePassword(String rawPass,
                             Object salt)

Encodes the rawPass using an MD4 message digest. If a salt is specified it will be merged with the password before encoding.

Parameters:

rawPass - The plain text password

salt - The salt to sprinkle

Returns:

Hex string of password digest (or base64 encoded string if encodeHashAsBase64 is enabled.

isPasswordValid

public boolean isPasswordValid(String encPass,
                               String rawPass,
                               Object salt)

Takes a previously encoded password and compares it with a raw password after mixing in the salt and encoding that value.

Parameters:

encPass - previously encoded password

rawPass - plain text password

salt - salt to mix into password

Returns:

true or false

getAlgorithm

public String getAlgorithm()