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.