edu.vt.middleware.registry.manage.password
Class CheckPassword

java.lang.Object
  edu.vt.middleware.registry.manage.password.CheckPassword

public final class CheckPassword
extends Object

CheckPassword contains methods for for checking passwords according to Virginia Tech strength requirements. This class is implemented as a singleton since it requires a lot of memory for the dictionaries.

Version:

$Revision: 6276 $

Author:

Daniel Fisher

Field Summary

private boolean	backwardsUserId Whether a password should be checked for a backwards user id
private edu.vt.middleware.password.PasswordCharacterRule	charRule Rule used to set the character requirements of passwords
private edu.vt.middleware.password.PasswordDictionaryRule	dictRule Rule used to set the dictionary requirements of passwords
private boolean	ignoreCaseUserId Whether a password should be checked for a case insensitive user id
private static CheckPassword	INSTANCE Instance of this CheckPassword
private edu.vt.middleware.password.PasswordLengthRule	lengthRule Rule used to set the length of passwords
private static Log	LOG Log for this class
private String	passwordDigest Digest name for password history
private edu.vt.middleware.password.PasswordSequenceRule	seqRule Rule used to set the sequence requirements of passwords
private edu.vt.middleware.password.PasswordWhitespaceRule	whitespaceRule Rule used to check passwords for whitespace

Constructor Summary

private

CheckPassword() Default constructor.

Method Summary

void	check(String user, String password, List history) This will check the supplied password against the rules that have been adopted at Viginia Tech.
private void	doInit() This performs all operations necessary to initialize this singleton.
static CheckPassword	getInstance() This will return the instance of CheckPassword.
static void	main(String[] args) This provides command line access to a CheckPassword.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final Log LOG

Log for this class

INSTANCE

private static final CheckPassword INSTANCE

Instance of this CheckPassword

whitespaceRule

private edu.vt.middleware.password.PasswordWhitespaceRule whitespaceRule

Rule used to check passwords for whitespace

lengthRule

private edu.vt.middleware.password.PasswordLengthRule lengthRule

Rule used to set the length of passwords

charRule

private edu.vt.middleware.password.PasswordCharacterRule charRule

Rule used to set the character requirements of passwords

dictRule

private edu.vt.middleware.password.PasswordDictionaryRule dictRule

Rule used to set the dictionary requirements of passwords

seqRule

private edu.vt.middleware.password.PasswordSequenceRule seqRule

Rule used to set the sequence requirements of passwords

ignoreCaseUserId

private boolean ignoreCaseUserId

Whether a password should be checked for a case insensitive user id

backwardsUserId

private boolean backwardsUserId

Whether a password should be checked for a backwards user id

passwordDigest

private String passwordDigest

Digest name for password history

Constructor Detail

CheckPassword

private CheckPassword()

Default constructor.

Method Detail

getInstance

public static CheckPassword getInstance()

This will return the instance of CheckPassword.

Returns:

CheckPassword

doInit

private void doInit()

This performs all operations necessary to initialize this singleton.

check

public void check(String user,
                  String password,
                  List history)
           throws edu.vt.middleware.password.PasswordException

This will check the supplied password against the rules that have been adopted at Viginia Tech.

Parameters:

user - String to check password for

password - String to check

history - List to check password against

Throws:

edu.vt.middleware.password.PasswordException - if the supplied password does not meet all the requirements of all rules

main

public static void main(String[] args)
                 throws Exception

This provides command line access to a CheckPassword.

Parameters:

args - String[]

Throws:

Exception - if an error occurs