Directory of PGP Resources

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Pretty Good Privacy (PGP) is a cryptographic software suite used for encrypting, decrypting, signing and verifying texts, e-mails, files, directories, and whole disk partitions. Its primary aim is to increase the security of e-mail communications. It was created by Phil Zimmermann in 1991.

PGP follows the OpenPGP standard (RFC 4880) for encrypting and decrypting data.

GNU Privacy Guard (GnuPG or GPG) is a free software replacement for the PGP cryptographic software suite. It is also compliant with RFC 4880.

Subcategories

• FAQs, Help, and Tutorials
• Key Servers
• Reference
• Software

Resources in This Category

• 15 reasons not to start using PGP

  http://www.secushare.org/PGP
  The collection of reasons to prefer more advanced cryptographic communications tools and stop investing in the old PGP over e-mail architecture, the problem mostly being e-mail rather than PGP.

• A Few Thoughts on Cryptographic Engineering: What's the matter with PGP?

  http://blog.cryptographyengineering.com/2014/08/whats-matter-with-pgp.html
  Matthew Green's blog entry, discussing the problems with keys, key management, lack of forward secrecy, the OpenPGP format and mail client implementations.

• A security analysis of PGP

  http://www.bluering.nl/pgp/
  Contains the result of a research project into PGP. It describes the Otterloo attack, aka PGPsdk Key Validity Vulnerability , an important attack on various windows versions of PGP. The full paper describes the history, algorithms (IDEA, RSA, DH/ ElGamal,DSA in full detail), bugs and source code of the program.

• Encrypt.to

  https://encrypt.to/
  Encrypts the message with PGP (client-side) and sends it on to the mail account. A user who does not use PGP can send fairly secure mails to PGP-users. The public key will be loaded from a public keyserver.

• International PGP Home Page

  http://www.pgpi.org/
  Information on the PGP program, the OpenPGP standard and the PGPi project. Detailed documentation, lists of products and services.

• Open PGP Alliance

  http://openpgp.org/
  A group of companies and other organizations that are implementers of the OpenPGP standard. Documentation, resources.

• PGP pathfinder and key statistics

  http://pgp.cs.uu.nl/
  Statistics of PGP keys. The pathfinder finds trust paths between keys in the PGP web of trust.

• PGP Web of Trust Statistics

  http://bcn.boulder.co.us/~neal/pgpstat/
  Statistics about the position of all keys within the Web of Trust.

• Phil Zimmermann's Home Page

  http://www.philzimmermann.com/EN/background/index.html
  Phil Zimmermann is the original creator of PGP and a founder of PGP, Inc. The site offers historical background and current resource links.

• Phuctor: The RSA Super Collider

  http://phuctor.nosuchlabs.com/
  Online tool for testing PGP/GnuPG public keys for obvious flaws using Euclid's Greatest Common Divisor theorem as well as shared moduli.

• ProPublica: The World's Email Encryption Software Relies on One Guy, Who is Going Broke

  https://www.propublica.org/article/the-worlds-email-encryption-software-relies-on-one-guy-who-is-going-broke
  Werner Koch's code powers the email encryption programs around the world. If only somebody would pay him for the work. Article by Julia Angwin.

• Stamper

  http://www.itconsult.co.uk/stamper.htm
  A free digital timestamping service which uses PGP and operates via email.

Related Categories

• Home > Computers > Security > Public Key Infrastructure

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