This article is from the Where to get the latest PGP FAQ, by Michael Paul Johnson mpj@ebible.org with numerous contributions by others.
PGP freeware - for personal, noncommercial use
http://www.pgpi.com - The best source for the current versions.
http://web.mit.edu/network/pgp.html - A trustworthy source for North
Americans.
http://cryptography.org - Archives of older versions and versions for
various platforms for North Americans.
Gnu Privacy Guard - free even for commercial use
http://www.gnupg.org
http://www.pgpi.com
http://cryptography.org
PGP Mail commercial version
PGP Mail is now published and supported by PGP Corporation. See
http://www.pgp.com for information on their current prices, versions,
and support. For commercial applications where having a corporation to
back up a product with support is important, or where maximum
integration with Windows is also important, this is the preferable
option. For commercial applications where low cost is the primary option
and you want to use a command line interface, Gnu Privacy Guard
(http://www.gnupg.org) is better.
Note: you may need an unzip utility, such as the InfoZip unzip that you
can get from http://www.info-zip.org to decompress the files you
download.
 
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