NAME
PW44 - Perl password generator - generate 44-bit passwords using OPIE dictionary
SYNOPSIS
# In perl script:
use Crypt::PW44 qw(generate);
# 44 bit (4 word) password
$output = generate(pack(Ll,int(rand(2**32)),int(rand(2**16))),3);
# $output = generate($random_binary_data,$number_of_ascii_text_words_minus_1);
# return value is N-word password of ascii text, with space delimiters between wordsDESCRIPTION
This module contains a simple password generator, based on the S/Key calculator (as described in RFC 1760) implemented in Perl. It exports the function generate.
This was inspired by the XKCD web comic "Password Strength", permalink http://xkcd.com/936/ .
INSTALLATION
(The usual.)
perl Makefile.PL make make test make install
FUNCTIONS
generate($random_data, $count)
Given two arguments, uses provided entropic data, computes the hash value, and returns it as a string containing N+1 words separated by spaces. The meanings of the arguments is as follows:
random_data
User/script-provided random data, must be binary, and more than N*11 bits in size
count
AKA "N". Counting from zero, not 1, is number of ASCII words in the password generated.
NOTES
Derived (heavily) from the Skey module, written by
Ken Williams, kwilliams@cpan.org
AUTHOR
Brian Dickson, brian.peter.dickson@gmail.com
COPYRIGHT
Copyright 2011 Brian Dickson. All rights reserved.
Copyright 2000-2009 Ken Williams. All rights reserved.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
SEE ALSO
perl(1). RFC 1760. Digest::MD4(1). Digest::MD5(1). Term::ReadKey(1).