mirror of https://github.com/dirtbags/moth.git
82 lines
2.3 KiB
Perl
Executable File
82 lines
2.3 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Getopt::Std;
|
|
use vars qw( $VERSION @VOWELS @CONSONANTS );
|
|
|
|
$VERSION = '1.0';
|
|
|
|
# Digest::BubbleBabble from Benjamin Trott, cpan@stupidfool.org
|
|
@VOWELS = split //, q{aeuioy};
|
|
@CONSONANTS = split //, q{bcdfghklmnprstvzx};
|
|
|
|
sub bubblebabble {
|
|
my ($input) = @_;
|
|
my @dgst = map { ord } split //, $input;
|
|
my $dlen = length $input;
|
|
|
|
my $seed = 1;
|
|
my $rounds = int($dlen / 2) + 1;
|
|
my $retval = 'x';
|
|
for my $i (0..$rounds-1) {
|
|
if ($i+1 < $rounds || $dlen % 2) {
|
|
my $idx0 = ((($dgst[2 * $i] >> 6) & 3) + $seed) % 6;
|
|
my $idx1 = ($dgst[2 * $i] >> 2) & 15;
|
|
my $idx2 = (($dgst[2 * $i] & 3) + $seed / 6) % 6;
|
|
$retval .= $VOWELS[$idx0] . $CONSONANTS[$idx1] . $VOWELS[$idx2];
|
|
if ($i+1 < $rounds) {
|
|
my $idx3 = ($dgst[2 * $i + 1] >> 4) & 15;
|
|
my $idx4 = $dgst[2 * $i + 1] & 15;
|
|
$retval .= $CONSONANTS[$idx3] . q/-/ . $CONSONANTS[$idx4];
|
|
$seed = ($seed * 5 + $dgst[2 * $i] * 7 +
|
|
$dgst[2 * $i + 1]) % 36;
|
|
}
|
|
} else {
|
|
my $idx0 = $seed % 6;
|
|
my $idx1 = 16;
|
|
my $idx2 = $seed / 6;
|
|
$retval .= $VOWELS[$idx0] . $CONSONANTS[$idx1] . $VOWELS[$idx2];
|
|
}
|
|
}
|
|
$retval .= 'x';
|
|
return $retval;
|
|
}
|
|
# --- END
|
|
|
|
sub readch {
|
|
my ($chars, $fh) = @_;
|
|
my $retval = '';
|
|
sysread $fh, $retval, $chars;
|
|
return $retval;
|
|
}
|
|
|
|
sub usage {
|
|
my ($msg) = @_;
|
|
print <<'EOB';
|
|
Usage: token-hash [options] count
|
|
-c category name
|
|
-s size of token hash [default: 8]
|
|
EOB
|
|
die "\n[x] $msg\n" if $msg;
|
|
exit 0;
|
|
}
|
|
|
|
my $count = 1;
|
|
my $size = 8;
|
|
my $cat = '';
|
|
|
|
my %options=();
|
|
getopts('c:s:h', \%options);
|
|
usage('not enough arguments!') unless scalar @ARGV > 0;
|
|
usage() if $options{h};
|
|
|
|
$cat = "$options{c}:1:" if $options{c} and $options{c} =~ m/\A ([[:alnum:]_-]+) \Z/msix;
|
|
$size = $options{s} if $options{s} and $options{s} =~ m/\A (\d+) \Z/msix;
|
|
$count = $ARGV[0] if $ARGV[0] and $ARGV[0] =~ m/\A (\d+) \Z/msix;
|
|
|
|
open my $fh, '<', '/dev/urandom';
|
|
print {*STDERR} "[+] Generating $count token", ($count > 1 ? 's' : ''), " [$size bytes of entropy]", $cat ? " with prefix '$cat'" : '', $/;
|
|
print $cat, bubblebabble(readch($size, $fh)), $/ for (1 .. $count);
|
|
close $fh;
|