authen::passphrase::mysql323(3pm) [debian man page]
Authen::Passphrase::MySQL323(3pm) User Contributed Perl Documentation Authen::Passphrase::MySQL323(3pm) NAME
Authen::Passphrase::MySQL323 - passphrases using the MySQL v3.23 algorithm SYNOPSIS
use Authen::Passphrase::MySQL323; $ppr = Authen::Passphrase::MySQL323->new( hash_hex => "2af8a0a82c8f9086"); $ppr = Authen::Passphrase::MySQL323->new( passphrase => "passphrase"); $hash = $ppr->hash; $hash_hex = $ppr->hash_hex; if($ppr->match($passphrase)) { ... DESCRIPTION
An object of this class encapsulates a passphrase hashed using the algorithm used by MySQL from version 3.23. This is a subclass of Authen::Passphrase, and this document assumes that the reader is familiar with the documentation for that class. The MySQL v3.23 hash scheme is composed entirely of linear operations. It accepts an arbitrarily long passphrase, and ignores all space and tab characters. No salt is used. 62 bits of hash are generated. Each character influences only a minority of the result bits, so similar passphrases of the same length have noticeably similar hashes. In MySQL the hash is represented as a string of sixteen lowercase hexadecimal digits. Warning: This is not a serious cryptographic algorithm. Do not use for any security purpose. CONSTRUCTOR
Authen::Passphrase::MySQL323->new(ATTR => VALUE, ...) Generates a new passphrase recogniser object using the MySQL v3.23 algorithm. The following attributes may be given: hash The hash, as a string of eight bytes. The first and fifth bytes must have their top bit clear. hash_hex The hash, as a string of 16 hexadecimal digits. passphrase A passphrase that will be accepted. Either the hash or the passphrase must be given. METHODS
$ppr->hash Returns the hash value, as a string of eight bytes. $ppr->hash_hex Returns the hash value, as a string of 16 hexadecimal digits. $ppr->match(PASSPHRASE) This method is part of the standard Authen::Passphrase interface. SEE ALSO
Authen::Passphrase, Crypt::MySQL 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::MySQL323(3pm)
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Authen::Passphrase::NetscapeMail(3pm) User Contributed Perl Documentation Authen::Passphrase::NetscapeMail(3pm) NAME
Authen::Passphrase::NetscapeMail - passphrases using Netscape Mail Server's method SYNOPSIS
use Authen::Passphrase::NetscapeMail; $ppr = Authen::Passphrase::NetscapeMail->new( salt => "8fd9d0a03491ce8f99cfbc9ab39f0dd5", hash_hex => "983757d7b519e86d9b5d472aca4eea3a"); $ppr = Authen::Passphrase::NetscapeMail->new( salt_random => 1, passphrase => "passphrase"); $ppr = Authen::Passphrase::NetscapeMail->from_rfc2307( "{NS-MTA-MD5}8fd9d0a03491ce8f99cfbc9ab39f0dd5". "983757d7b519e86d9b5d472aca4eea3a"); $salt = $ppr->salt; $hash = $ppr->hash; $hash_hex = $ppr->hash_hex; if($ppr->match($passphrase)) { ... $userPassword = $ppr->as_rfc2307; DESCRIPTION
An object of this class encapsulates a passphrase hashed using the algorithm used by Netscape Mail Server. This is a subclass of Authen::Passphrase, and this document assumes that the reader is familiar with the documentation for that class. The Netscape Mail Server scheme is based on the MD5 digest algorithm. The passphrase and a salt are concatenated, along with some fixed bytes, and this record is hashed through MD5. The output of MD5 is the password hash. This algorithm is deprecated, and is supported for compatibility only. Prefer the mechanism of Authen::Passphrase::SaltedDigest. CONSTRUCTORS
Authen::Passphrase::NetscapeMail->new(ATTR => VALUE, ...) Generates a new passphrase recogniser object using the Netscape Mail Server algorithm. The following attributes may be given: salt The salt, as a raw 32-byte string. It may be any 32-byte string, but it is conventionally limited to lowercase hexadecimal digits. salt_random Causes salt to be generated randomly. The value given for this attribute is ignored. The salt will be a string of 32 lowercase hexadecimal digits. The source of randomness may be controlled by the facility described in Data::Entropy. 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. The salt must be given, and either the hash or the passphrase. Authen::Passphrase::NetscapeMail->from_rfc2307(USERPASSWORD) Generates a new Netscape Mail Server passphrase recogniser object from an RFC 2307 string. The string must consist of "{NS-MTA-MD5}" (case insensitive) followed by the hash in case-insensitive hexadecimal and then the salt. The salt must be exactly 32 characters long, and cannot contain any character that cannot appear in an RFC 2307 string. METHODS
$ppr->salt Returns the salt value, as a string of 32 bytes. $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->match(PASSPHRASE) $ppr->as_rfc2307 These methods are part of the standard Authen::Passphrase interface. SEE ALSO
Authen::Passphrase, Digest::MD5 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::NetscapeMail(3pm)