NAME
Crypt::PW44 - Perl password generator - generate 44-bit passwords using OPIE dictionary from RFC 1760.
SYNOPSIS
# In perl script:
use Crypt::PW44 qw(generate_password);
# 44 bit (4 word) password
$output = generate_password(pack("Ll",int(rand(2**32)),int(rand(2**16))),3);
# $output = generate_password($random_binary_data,$number_of_ascii_text_words_minus_1);
# return value is N-word password of ascii text, with space delimiters between wordsDESCRIPTION
This module contains a simple password generator, based on the S/Key calculator (as described in RFC 1760) implemented in Perl. It exports the function generate_password.
This was inspired by the XKCD web comic "Password Strength", permalink http://xkcd.com/936/ .
INSTALLATION
perl Makefile.PL make make test make install
FUNCTIONS
generate_password($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 S/Key module, written by
Ken Williams, kwilliams@cpan.org
AUTHOR
Brian Dickson, brian.peter.dickson@gmail.com
COPYRIGHT
Copyright 2011-2017 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.