in reply to
simple encryption for perl files
Hello and welcome to the monastery, snowfalcon!
This topic comes up often, and Super Search holds a trove of many interesting attempts to hide the source code, for example Closing Perl Source and Can you prevent MO=Deparse.
The common and most renowned way to hide your source code from the prying eyes of the public is Acme::Bleach by master wizard and crocodile wrangler Damian Conway.
There are also deobfuscators, for example Acme::Floral and B::Deobfuscate by diotalevi.
Update: Added examples found via Super Search, fixed module names
perl -MHTTP::Daemon -MHTTP::Response -MLWP::Simple -e ' ; # The
$d = new HTTP::Daemon and fork and getprint $d->url and exit;#spider
($c = $d->accept())->get_request(); $c->send_response( new #in the
HTTP::Response(200,$_,$_,qq(Just another Perl hacker\n))); ' # web