<?xml version="1.0" encoding="UTF-8"?>
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<!--
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! CDDL HEADER START
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!
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! The contents of this file are subject to the terms of the
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! Common Development and Distribution License, Version 1.0 only
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! (the "License"). You may not use this file except in compliance
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! with the License.
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!
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! You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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! or http://forgerock.org/license/CDDLv1.0.html.
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! See the License for the specific language governing permissions
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! and limitations under the License.
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!
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! When distributing Covered Code, include this CDDL HEADER in each
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! file and include the License file at legal-notices/CDDLv1_0.txt.
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! If applicable, add the following below this CDDL HEADER, with the
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! fields enclosed by brackets "[]" replaced with your own identifying
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! information:
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! Portions Copyright [yyyy] [name of copyright owner]
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! Copyright 2007-2008 Sun Microsystems, Inc.
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! -->
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<adm:managed-object name="similarity-based-password-validator"
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plural-name="similarity-based-password-validators"
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package="org.opends.server.admin.std" extends="password-validator"
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xmlns:adm="http://www.opends.org/admin"
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xmlns:ldap="http://www.opends.org/admin-ldap">
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<adm:synopsis>
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The
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<adm:user-friendly-name />
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determines whether a proposed password is acceptable by measuring
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how similar it is to the user's current password.
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</adm:synopsis>
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<adm:description>
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In particular,
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it uses the Levenshtein Distance algorithm to determine the
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minimum number of changes (where a change may be inserting,
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deleting, or replacing a character) to transform one string into
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the other. It can be used to prevent users from making only minor
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changes to their current password when setting a new password.
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Note that for this password validator to be effective, it is
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necessary to have access to the user's current password.
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Therefore, if this password validator is to be enabled, the
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password-change-requires-current-password attribute in the
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password policy configuration must also be set to true.
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</adm:description>
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<adm:profile name="ldap">
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<ldap:object-class>
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<ldap:name>ds-cfg-similarity-based-password-validator</ldap:name>
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<ldap:superior>ds-cfg-password-validator</ldap:superior>
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</ldap:object-class>
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</adm:profile>
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<adm:property-override name="java-class" advanced="true">
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<adm:default-behavior>
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<adm:defined>
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<adm:value>
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org.opends.server.extensions.SimilarityBasedPasswordValidator
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</adm:value>
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</adm:defined>
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</adm:default-behavior>
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</adm:property-override>
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<adm:property name="min-password-difference" mandatory="true">
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<adm:synopsis>
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Specifies the minimum difference of new and old password.
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</adm:synopsis>
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<adm:description>
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A value of zero indicates that no difference between passwords is
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acceptable.
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</adm:description>
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<adm:syntax>
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<adm:integer lower-limit="0" upper-limit="2147483647"/>
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</adm:syntax>
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<adm:profile name="ldap">
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<ldap:attribute>
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<ldap:name>ds-cfg-min-password-difference</ldap:name>
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</ldap:attribute>
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</adm:profile>
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</adm:property>
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</adm:managed-object>
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