The GnuPG MiniHOWTO explains to install, run, use and troubleshoot GnuPG. It also pays attention to things to think about regarding encryption. This miniHOWTO was originally written in German and has been rewritten in English (and thus been adjusted). GnuPG is a complete and free replacement for PGP. Because it does not use IDEA or RSA it can be used without any restrictions. GnuPG is nearly in compliance with RFC2440 (OpenPGP).