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.