PGP, Pretty Good Privacy

 

Installation

Pretty Good Privacy (PGP) is a high security cryptographic software application for MSDOS, Unix, VAX/VMS, and other computers. PGP allows people to exchange files or messages with privacy, authentication, and convenience.

PGP, from Phil's Pretty Good Software, was written by Phil Zimmerman, "and many others". The revision included below is PGP Version 2.6.2 dated 11 Oct 94. Software and documentation © Copyright 1990-1994 Philip Zimmermann. All rights reserved. For information on PGP licensing, distribution, copyrights, patents, trademarks, liability limitations, and export controls, see the "Legal Issues" section in the "PGP User's Guide". Distributed by the Massachusetts Institute of Technology.

The PGP made available for our customers has been modified so that it will work in both the non-virtual and virtual environments. Modifications have also been made to the PGP executable provided by us such that it will only run on our servers. Please do not attempt to export this version of PGP outside the US, it will not work.

To install PGP, telnet or SSH to your Virtual Server and do the following:

1. Run the appropriate PGP installation program by typing:

   FreeBSD Virtual Servers:
     % vinstall pgp
     % rehash

   BSDI Virtual Servers:
     % /usr/local/contrib/pgp5-install
     % rehash

   and answer all of the questions. You must agree to the terms of the license to install PGP. If you intend to use PGP in a commercial application you must purchase a license from Network Associates.

Now that you have installed PGP on your Virtual Server, it would be very wise to read the documentation before you attempt to use it. A list of man pages can be found in the file ~/.pgp/pgp.doc

% cd
% cd .pgp
% view pgp.doc

Implementation
To generate your own public/secret key pair:

% pgpk -g

Or if you already have a public/secret key pair, you will want to add your existing keys to your Virtual Private Servers's key ring:

% pgpk -a [keyfile]

To add PGP to your CGI's do something like the following:

... | pgpe -r <userid> -a -f | mail -s "Encrypted Mail" ...

Another option is to use a PGP5 version of FormMail, pgp5formmail.pl.