#!/usr/local/bin/perl

use diagnostics;
use strict;
use warnings;
use Digest::DMAC qw(dmac hexdigest base64digest);

print "Enter key: ";
my $key = <STDIN>;
chomp $key;

print "Enter cipher: ";
my $cipher = <STDIN>;
chomp $cipher;
local $/ = undef;

while (<>) {
    my $mac = dmac($key, $cipher, $_);
    print hexdigest($mac), "\n";
}