Introduction 11
used by OpenPGP, what separates an encryption system from
a code, and when you should use each sort of encryption with
GnuPG.
Chapter 2, “Understanding OpenPGP,” teaches you the
basic ideas underlying OpenPGP. I discuss the Web of Trust,
keys and subkeys, keyrings, and keyservers, as well as ideas you
must understand before installing either package. I also discuss
how to safely handle your key, how to get your key signed or
revoked, and how to make your key publicly available.
Chapter 3, “Installing PGP,” guides you through installing
the PGP desktop client.
Chapter 4, “Installing GnuPG,” walks you through install-
ing GnuPG on both Windows and Unix-like systems.
Chapter 5, “The Web of Trust,” discusses how OpenPGP
keys are connected ...