19.6. A quick tour of GnuPG

19.6.1. Installation of GnuPG

GnuPG is a free software package available to everyone on the Internet. It is a standard implementation of the IETF standard RFC 2440 on public-key and hybrid cryptography. GnuPG is a complicated program offering a large number of command-line arguments. The main program is called gpg. This program contains more than 30 commands and more than 30 options. We will cover some of the most popular uses of the program from a practical point of view. Examples related to GnuPG will have the file extension .gpg in this chapter.

First, you can download the software package from the official site www.gnupg.org. GnuPG has a number of versions dedicated to different platforms and operating systems. ...

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