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 \s-1MD5\s0 digest algorithm. The passphrase and a salt are concatenated, along with some fixed bytes, and this record is hashed through \s-1MD5\s0. The output of \s-1MD5\s0 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(\s-1ATTR\s0 => \s-1VALUE\s0, ...)

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(\s-1USERPASSWORD\s0)

Generates a new Netscape Mail Server passphrase recogniser object from an \s-1RFC\s0 2307 string. The string must consist of "{\s-1NS-MTA-MD5\s0}" (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 \s-1RFC\s0 2307 string.

METHODS

Returns the salt value, as a string of 32 bytes. Returns the hash value, as a string of 16 bytes. Returns the hash value, as a string of 32 hexadecimal digits. These methods are part of the standard Authen::Passphrase interface.

RELATED TO Authen::Passphrase::NetscapeMail…

Authen::Passphrase, Digest::MD5

AUTHOR

Andrew Main (Zefram) <[email protected]>

COPYRIGHT

Copyright (C) 2006, 2007, 2009, 2010, 2012 Andrew Main (Zefram) <[email protected]>

LICENSE

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