now is the time to forget the whimpering child, become the warrior
5.1.2. Installing GnuPG on Macintosh OS X
You have three basic ways to install GnuPG on OS X. Most users will choose the first option.
The first and most popular option is to use MacGPG. The MacGPG Project provides pre-built Universal Binaries of GnuPG 1.4.9 and later for users running OS X 10.4 (Tiger). Just download the package from http://macgpg.sf.net
and install it.
Please note that if you are running OS X 10.3 or earlier, you will not be able to use the MacGPG packages. Although the MacGPG project provides older versions of GnuPG packaged for older versions of OS X, since Enigmail
depends on GnuPG 1.4.9 or later, older versions of GnuPG won't be useful.
The second option is to use Fink. The Fink Project (http://fink.sf.net) keeps a very current version of GnuPG in their source tree. If you're using Fink, install GnuPG by typing fink install gnupg into Terminal.app.
The third option is the MacPorts Project (http://www.macports.org), formerly called "DarwinPorts", that keeps a current version of GnuPG in their source tree. If you're using MacPorts, open up Terminal.app and type sudo port install gnupg.