P U B L I C   K E Y C R Y P T O G R A P H Y This file presents information on public key encryption, a form of secure internet communication that even the intelligence community cannot compromise (despite repeated efforts). Delta Green agents are highly enouraged to investigate this communications protocol and make use of it. Alert agents will have noticed that the notorious Final Report of Major General Reginald Fairfield (U.S. Army, Ret.) was sent with PGP encryption and that said report was not compromised. Conventional cryptography uses a single key to encrypt and decrypt. This means that if an unfriendly third party obtains the key, all information encrypted with it is vulnerable. Public-key cryptography, on the other hand, uses a two-part system that allows for free distribution of the information necessary for secure communication, even between people who have never met in person. When you use a public-key system like the free software Pretty Good Privacy, you generate a key pair, composed of a public key and a private key. You keep the private key private, not distributing it to anyone else. But the public key can be published far and wide. There is a network of key servers on the Internet, which collect and index public keys, allowing you to make your own key readily availabe and to retrieve the public keys of others. A message encrypted with your public key can only be decrypted with your private key. Thus anyone with your public key can send you a message that only you can read. Likewise, you can use their public key to respond. As long as neither of you jeopardizes the integrity of your private key, you can communicate securely indefinitely. It is also possible to sign a message. In this case, the text remains unencrypted and a few lines of digital signature are added. Anyone with your public key can verify that your private key was used to sign the message...and the signature includes a checksum unique to that specific message, to guard against corruption or tampering. (If you try cutting and pasting a clear-sign signature, validation will fail on any but the original message.) A message that is encrypted with someone else's public key and signed with yours offers the best of both worlds: only the intended recipient can read it and it can be established that you wrote it, rather than someone impersonating you. The best implementation to date of public-key concepts is Phil Zimmerman's program Pretty Good Privacy. It is available  for public use; see http://www.pgp.com/ to download your own copy. This is one of the best investments an individual can make: it is easy to install and easy to use routinely. If you live outside North America, please consult the International PGP Home Page at http://www.pgpi.com/ to obtain current software. Whether you live in or out of North America, see the excellent documentation at this site. The scanning project is a model of independent coordinated action in the face of official hostility and indifference; Delta Green agents, take note. Anyone who wishes information about establishing a position within the "web of trust" for agent Alphonse and signing my key, please feel free to contact me at the address below. Updated versions of both these keys will be posted to standard key servers from time to time. As an incentive to obtain and use PGP, some documents here may be protected with it. To obtain agent Alponse's PGP 5 key, click here. See PGP's instructions for your operating system to find out how to add it to your key ring. To obtain agent Alphonse's PGP 2.6.2 key, click here.

"At PISCES' direction, MI-5 intercepts mail, taps phones, and bugs apartments and homes. GCHQ--Government Communications Headquarters, the U.K.'s version of the NSA--monitors email servers and monitors the airways for radio traffic and cell-phone communications. PISCES agents infiltrate occult societies and fringe churches looking for signs of corruption. If such signs are detected, PISCES resorts to its tried-and-true methods of disposing of such threats..." DELTA GREEN: COUNTDOWN

 

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