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#!/usr/bin/perl -w
# Author: Pierre Chifflier <chifflier@inl.fr>
# license: GPLv2
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 2 of the License.
# NIST SHA-1 message digest algorithm
use Digest::SHA1 qw(sha1_base64);
use POSIX;
sub echo_off {
my($echo) = (&POSIX::ECHO|&POSIX::ECHOK);
$no_echo = $term_orig;
$no_echo &= ~$echo;
$t->setlflag( $no_echo );
$t->setattr( 0, &TCSANOW);
}
sub echo_on {
$t->setlflag( $term_orig );
$t->setattr( 0, &TCSANOW);
}
#
# Set up terminal
$t = POSIX::Termios->new();
$t->getattr();
$term_orig = $t->getlflag();
my $plaintext=shift;
if (!$plaintext) {
print "password : ";
echo_off();
chop ($plaintext=<STDIN>);
echo_on();
print "\n";
}
# we append a = because the sha1_base64 function does not append it
print sha1_base64($plaintext), "=\n";
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