NAME
Crypt::Diceware - Random passphrase generator loosely based on the Diceware algorithm
VERSION
version 0.003
SYNOPSIS
use Crypt::Diceware;
my @phrase = words(4); # qw/starker call recur outlaw/
# with alternate word lists
use Crypt::Diceware words => { wordlist => 'Original' };
use Crypt::Diceware words => { wordlist => 'Beale' };DESCRIPTION
This module generates a random passphrase of words based loosely on the Diceware algorithm by Arnold G. Reinhold.
A Diceware passphrase consists of a randomly selected words chosen from a list of over seven thousand words. A passphrase of four or five words is likely to be stronger than typical human-generated passwords, which tend to be too-short and over-sample common letters ("e") and numbers ("1").
Words are selected by randomly using Data::Entropy, which is reasonably cryptographically strong.
USAGE
By default, this module exports a single subroutine, words, which uses the Crypt::Diceware::Wordlist::Common word list.
An alternate wordlist may be specified:
use Crypt::Diceware words => { wordlist => 'Original' };Exporting is done via Sub::Exporter so any of its features may be used:
use Crypt::Diceware words => { -as => 'passphrase' };
my @phrase = passphrase(4);words
my @phrase = words(4);Takes a positive numeric argument and returns a passphrase of that many randomly-selected words. In a list context it will return a list of words, as above. In a scalar context it will return a string with the words separated with a single space character:
my $phrase = words(4);Returns the empty list / string if the argument is missing or not a positive number.
SEE ALSO
Diceware and Crypt::Diceware related:
Other CPAN passphrase generators:
About password strength in general:
SUPPORT
Bugs / Feature Requests
Please report any bugs or feature requests through the issue tracker at https://github.com/dagolden/crypt-diceware/issues. You will be notified automatically of any progress on your issue.
Source Code
This is open source software. The code repository is available for public review and contribution under the terms of the license.
https://github.com/dagolden/crypt-diceware
git clone git://github.com/dagolden/crypt-diceware.gitAUTHOR
David Golden <dagolden@cpan.org>
CONTRIBUTOR
Neil Bowers <neil@bowers.com>
COPYRIGHT AND LICENSE
This software is Copyright (c) 2013 by David Golden.
This is free software, licensed under:
The Apache License, Version 2.0, January 2004