authen::passphrase::acceptall(3pm) [debian man page]

Authen::Passphrase::AcceptAll(3pm)			User Contributed Perl Documentation			Authen::Passphrase::AcceptAll(3pm)

NAME

       Authen::Passphrase::AcceptAll - accept any passphrase

SYNOPSIS

	       use Authen::Passphrase::AcceptAll;

	       $ppr = Authen::Passphrase::AcceptAll->new;

	       $ppr = Authen::Passphrase::AcceptAll
		       ->from_crypt("");

	       $ppr = Authen::Passphrase::AcceptAll
		       ->from_rfc2307("{CRYPT}");

	       if($ppr->match($passphrase)) { ...

	       $passphrase = $ppr->passphrase;

	       $passwd = $ppr->as_crypt;
	       $userPassword = $ppr->as_rfc2307;

DESCRIPTION

       An object of this class is a passphrase recogniser that accepts any passphrase whatsoever.  This is a subclass of Authen::Passphrase, and
       this document assumes that the reader is familiar with the documentation for that class.

       This type of passphrase recogniser is obviously of no use at all in controlling access to any resource.	Its use is to permit a resource to
       be public in a system that expects some type of passphrase access control.

CONSTRUCTORS

       Authen::Passphrase::AcceptAll->new
	   Returns an accept-all passphrase recogniser object.	The same object is returned from each call.

       Authen::Passphrase::AcceptAll->from_crypt("")
	   Returns an accept-all passphrase recogniser object.	The same object is returned from each call.  The argument must be the empty
	   string.

       Authen::Passphrase::AcceptAll->from_rfc2307(USERPASSWORD)
	   Generates a new accept-all passphrase recogniser object from an RFC 2307 string.  The string must consist of "{CRYPT}" (case
	   insensitive) followed by an acceptable crypt string.

METHODS

       $ppr->match(PASSPHRASE)
       $ppr->passphrase
       $ppr->as_crypt
       $ppr->as_rfc2307
	   These methods are part of the standard Authen::Passphrase interface.  The "match" method always returns true, and the "passphrase"
	   method returns the empty string (the shortest of the infinite number of correct passphrases).

SEE ALSO

       Authen::Passphrase

AUTHOR

       Andrew Main (Zefram) <zefram@fysh.org>

COPYRIGHT

       Copyright (C) 2006, 2007, 2009, 2010, 2012 Andrew Main (Zefram) <zefram@fysh.org>

LICENSE

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-02-07					Authen::Passphrase::AcceptAll(3pm)

Authen::Passphrase::LANManager(3pm)			User Contributed Perl Documentation		       Authen::Passphrase::LANManager(3pm)

NAME

       Authen::Passphrase::LANManager - passphrases using the LAN Manager hash algorithm

SYNOPSIS

	       use Authen::Passphrase::LANManager;

	       $ppr = Authen::Passphrase::LANManager->new(
		       hash_hex => "855c3697d9979e78ac404c4ba2c66533");

	       $ppr = Authen::Passphrase::LANManager->new(
		       passphrase => "passphrase");

	       $ppr = Authen::Passphrase::LANManager->from_rfc2307(
		       "{LANMAN}855c3697d9979e78ac404c4ba2c66533");

	       $hash = $ppr->hash;
	       $hash_hex = $ppr->hash_hex;

	       $ppr0 = $ppr->first_half;
	       $ppr1 = $ppr->second_half;

	       if($ppr->match($passphrase)) { ...

	       $userPassword = $ppr->as_rfc2307;

DESCRIPTION

       An object of this class encapsulates a passphrase hashed using the Microsoft LAN Manager hash function.	This is a subclass of
       Authen::Passphrase, and this document assumes that the reader is familiar with the documentation for that class.

       The hash algorithm can be used on up to fourteen Latin-1 characters of passphrase.  First the passphrase is folded to uppercase, and zero-
       padded to fourteen bytes.  Then it is split into two halves.  Each seven-byte half is used as a 56-bit DES key, to encrypt the fixed
       plaintext block "KGS!@#$%".  The eight-byte ciphertexts are concatenated to form the sixteen-byte hash.	There is no salt.

       Because the two halves of the passphrase are hashed separately, it is possible to manipulate (e.g., crack) a half hash in isolation.  See
       Authen::Passphrase::LANManagerHalf.

       Warning: Don't even think about using this seriously.  It's an exceptionally weak design, flawed in pretty much every respect.

CONSTRUCTORS

       Authen::Passphrase::LANManager->new(ATTR => VALUE, ...)
	   Generates a new passphrase recogniser object using the LAN Manager hash algorithm.  The following attributes may be given:

	   hash
	       The hash, as a string of 16 bytes.

	   hash_hex
	       The hash, as a string of 32 hexadecimal digits.

	   passphrase
	       A passphrase that will be accepted.

	   Either the hash or the passphrase must be given.

       Authen::Passphrase::LANManager->from_rfc2307(USERPASSWORD)
	   Generates a LAN Manager passphrase recogniser from the supplied RFC2307 encoding.  The string must consist of "{LANMAN}" (or its
	   synonym "{LANM}") followed by the hash in hexadecimal; case is ignored.

METHODS

       $ppr->hash
	   Returns the hash value, as a string of 16 bytes.

       $ppr->hash_hex
	   Returns the hash value, as a string of 32 hexadecimal digits.

       $ppr->first_half
	   Returns the hash of the first half of the passphrase, as an Authen::Passphrase::LANManagerHalf passphrase recogniser.

       $ppr->second_half
	   Returns the hash of the second half of the passphrase, as an Authen::Passphrase::LANManagerHalf passphrase recogniser.

       $ppr->match(PASSPHRASE)
       $ppr->as_rfc2307
	   These methods are part of the standard Authen::Passphrase interface.

SEE ALSO

       Authen::Passphrase, Authen::Passphrase::LANManagerHalf, Crypt::DES

AUTHOR

       Andrew Main (Zefram) <zefram@fysh.org>

COPYRIGHT

       Copyright (C) 2006, 2007, 2009, 2010, 2012 Andrew Main (Zefram) <zefram@fysh.org>

LICENSE

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-02-07				       Authen::Passphrase::LANManager(3pm)