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PGP (Pretty Good Privacy) is public key cryptography software which provides encryption and digital signatures for documents and e-mail messages.

History and Philosophy

How PGP Works
Description: Looks at both conventional and public key cryptography and explains how PGP works, with sections on digital signatures, digital certificates, validity and trust, certificate revocation, passphrases and key splitting. Taken from chpt 1 of the document Introduction to Cryptography in the PGP 6.5.1 documentation.
Author: Network Associates (original)
Date: 1990-1999
URL: http://www.pgpi.org/doc/pgpintro/

Why do you need PGP?
Description: The author of PGP discusses why he wrote it. Available in different languages.
Author: Phil Zimmerman
Date: Not Known
URL: http://www.pgpi.org/doc/whypgp/

PGP Timeline
Description: A history of PGP which goes up to PGP 2.7. Current legal status section is now out-of-date.
Author: Adam Back
Date: Not Known
URL: http://www.cypherspace.org/~adam/timeline/

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For Beginners

PGP User's Guide
Description: This is essential reading for all users of PGP. This is the guide that is distributed with the program. Different versions and different languages are available from this site.
Author: Network Associates
Date: Not known
URL: http://www.pgpi.org/doc/guide/

PGP The Easy Way
Description: An up-to-date, readable, step-by-step guide to setting up and using PGP 6.5.8 for complete beginners.
Author: SF Kinney
Date: 2000
URL: http://home.mpinet.net/pilobilus/EZ_PGP.htm

Overview of PGP
Description: A quick overview of versions, languages, platforms and other PGP products.
Author: Not Known
Date: Not Known
URL: http://www.pgpi.org/doc/overview/

JANET-CERT PGP Use
Description: Goes through the processes involved in setting up and using PGP for secure e-mail (modified 2 November 1999). Includes detailed procedures for signing keys (modified 2 November 1999).
Author: JANET CERT
Date: 3 July 2001
URL: http://www.ja.net/CERT/JANET-CERT/PGP/use.html

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A Newcomer's Introduction to Pretty Good Privacy (PGP)
Description: A short readable guide to PGP 5.x illustrated with screenshots. Describes various plug-ins and covers what PGP is, how it works and where to get it.
Author: Anthony E. Greene
Date: around 1998
URL: http://www.mindspring.com/~aegreene/pgp/

PGP for Absolute Beginners
Description: A short informal guide to getting started with PGP. Section 3 covers the basic uses of PGP.
Author: David Hamilton
Date: revised in December 1998, originally published in newsgroups in 1996.
URL: http://axion.physics.ubc.ca/pgp-begin.html

Non-Technical PGP (Pretty Good Privacy) FAQ
Description: A lighthearted non-technical overview of PGP.
Author: Andre Bacard
Date:27 August 2000
URL: http://www.andrebacard.com/pgp.html

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General

PGPi FAQ
Description: Frequently asked questions about the International version of PGP. Includes details of plug-ins that are available for versions 6.x.
Author: Ståle Schumacher Ytteborg
Date: 2 March 2001
URL: http://www.pgpi.org/doc/faq/pgpi/

Tom McCune's PGP Answers and Questions
Description: Fills the gaps in other Frequently Asked Questions.
Author: Tom McCune
Date: Not Known
URL: http://www.McCune.cc/PGP.htm

Pretty Good Privacy
Description:Useful for the links to other PGP sites, newsgroups and mailing lists though some pages are out-of-date. Covers what is PGP, why use PGP and the web of trust.
Author: Keith Parkins
Date: March 2000 for homepage but other pages are older (1996-2000)
URL: http://www.heureka.clara.net/sunrise/pgp.htm

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Technical

Sam Simpson PGP FAQ
Description: Fairly technical answers to FAQs posted to newsgroups.
Author: Sam Simpson
Date: 20 September 1999
URL: http://www.scramdisk.clara.net/pgpfaq.html

Case Studies

Useability of Security: A Case Study
Description: A study of the useability of PGP 5.0 for Macintosh undertaken at the Computer Science Department, School of Computer Science, Carnegie Mellon University. The evaluation methods used were cognitive walkthrough and a user test whereby test participants were given a task to perform using PGP. The study concluded that PGP 5.0 wasn't 'sufficiently useable to provide effective security for most users.'
Author: Alma Whitten, JD Tygar
Date: December 1998
URL: http://reports-archive.adm.cs.cmu.edu/anon/1998/abstracts/98-155.html

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Mailing Lists

PGP Users Mailing List
Description: This mailing list is for both novices and experts to discuss PGP and privacy related issues. The web site gives instructions on using the pgp-users mailing list.
Author: Not Applicable
Date: Not Applicable
URL: http://www.cryptorights.org/pgp-users/

Passphrases

The passphrase FAQ, version 1.04
Description: Old but comprehensive guide to passphrases.
Author: Randall T Williams
Date: 13 January 1997
URL: http://www.stack.nl/~galactus/remailers/passphrase-faq.html

The Diceware Passphrase Home Page
Description: Describes how to generate a passphrase using the Diceware word list.
Author: Arnold G. Reinhold
Date: 6 August 2001
URL: http://www.diceware.com

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Software

The International PGP Home Page
Description: Download the latest version (7.0.3) of PGP.
Author: Not Applicable
Date: Not Applicable
URL: http://www.pgpi.org/products/pgp/versions/freeware/

Mail Client Capabilities: PGP-related
Description: This is a list of how various mail clients interact with PGP.
Author: Not Known
Date: 8 June 2000
URL: http://www.cryptorights.org/pgp-users/pgp-mail-clients.html

QDPGP
Description: Download the Pegasus plug-in with a comprehensive help file.
Author: Gerard R Thomas
Date: 14 September 2001 (created 5 May 1997)
URL: http://community.wow.net/grt/qdpgp.html

Netscape PGP Plugin
Description: PGP plugin for Netscape
Author: Jerry Davis, Bear Software
Date: 28 November 2000
URL: http://bear-software.freeservers.com/

PGP Digital Timestamping Service
Description: A free digital timestamping service for use with PGP.
Author: Matthew Richardson
Date: 21 July 1997 (one page updated on 4 January 2001)
URL: http://www.itconsult.co.uk/stamper.htm

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Cryptography

A Handbook of Applied Cryptography
Description: Free chapters, on topics such as public key encryption and digital signatures, are available to download.
Author: Alfred J. Menezes, Paul C. van Oorschot and Scott A. Vanstone
Date: Fifth printing August 2001, original October 1996.
URL: http://www.cacr.math.uwaterloo.ca/hac/

RSA Laboratories Frequently Asked Questions About Today's Cryptography, Version4.1
Description: Comprehensive FAQ on all aspects of cryptography.
Author: RSA Laboratories
Date: 2000
URL: http://www.rsa.com/rsalabs/node.asp?id=2152

Certificate Authorities

PGP Academic PCA
Description: The UCL experimental Certificate Authority certifies public keys of UK universities, deparments or research groups.
Author: University College London
Date: Not available
URL: http://www.cs.ucl.ac.uk/research/ice-tel/pgp/pgp_pca/

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Last Modified: Friday June 12 2009
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