org.springframework.security.ldap.authentication
Class PasswordComparisonAuthenticator

java.lang.Object
  org.springframework.security.ldap.authentication.AbstractLdapAuthenticator
      org.springframework.security.ldap.authentication.PasswordComparisonAuthenticator

All Implemented Interfaces:

InitializingBean, MessageSourceAware, LdapAuthenticator

public final class PasswordComparisonAuthenticator
extends AbstractLdapAuthenticator

An LdapAuthenticator which compares the login password with the value stored in the directory using a remote LDAP "compare" operation.

If passwords are stored in digest form in the repository, then a suitable PasswordEncoder implementation must be supplied. By default, passwords are encoded using the LdapShaPasswordEncoder. Note that compare operations will not work if salted-SHA (SSHA) passwords are used, as it is not possible to know the salt value which is a random byte sequence generated by the directory.

Version:

$Id: PasswordComparisonAuthenticator.java 3778 2009-07-22 16:11:24Z ltaylor $

Author:

Luke Taylor

Field Summary

Fields inherited from class org.springframework.security.ldap.authentication.AbstractLdapAuthenticator

messages

Constructor Summary

PasswordComparisonAuthenticator(org.springframework.ldap.core.support.BaseLdapPathContextSource contextSource)

Method Summary

org.springframework.ldap.core.DirContextOperations	authenticate(Authentication authentication) Authenticates as a user and obtains additional user information from the directory.
void	setPasswordAttributeName(String passwordAttribute)
void	setPasswordEncoder(PasswordEncoder passwordEncoder)

Methods inherited from class org.springframework.security.ldap.authentication.AbstractLdapAuthenticator

afterPropertiesSet, getContextSource, getUserAttributes, getUserDns, getUserSearch, setMessageSource, setUserAttributes, setUserDnPatterns, setUserSearch

Methods inherited from class java.lang.Object

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

Constructor Detail

PasswordComparisonAuthenticator

public PasswordComparisonAuthenticator(org.springframework.ldap.core.support.BaseLdapPathContextSource contextSource)

Method Detail

authenticate

public org.springframework.ldap.core.DirContextOperations authenticate(Authentication authentication)

Description copied from interface: LdapAuthenticator

Authenticates as a user and obtains additional user information from the directory.

Returns:

the details of the successfully authenticated user.

setPasswordAttributeName

public void setPasswordAttributeName(String passwordAttribute)

setPasswordEncoder

public void setPasswordEncoder(PasswordEncoder passwordEncoder)