American Cryptogram Association
Richard Brisson's crypto pages
Andy Carlson's Enigma applet
Colossus and Tunny - the rebuild project at Bletchley Park
Counterpane Systems - crypto papers online
Cryptography and Electronic Warfare
DOE SysWorks - Joe Peschel's pages
ECHELON
Graham Ellsbury's pages - Enigma and the Bombe
Anton Haddeman's home page
Handbook of Applied Cryptography [download]
Andrew Hodges' pages on Alan Turing
Infography page on Enigma
International Spy Museum
Keith Lockstone's home page
Lech Maziakowski's Enigma page
Bill Momsen's Enigma pages
Jim Oram's Enigma replica project
Tom Perera's Enigma [and other stuff] virtual museum
Jerry Proc's Crypto Machine page
Jim Reeds' site - Telegraphic Code Books
Paul Reuvers' Enigma simulation for the RISC OS/Enigma-E site
Bob Reynard's Secret Codebreaker site
Dirk Rijmenants' Enigma and M-209 simulators
John Savard's website
Cornelia and Stuart Savory - ciphers, cryptograms
Alan Simpson's sites: Spies Café and 'spyschool.com'
Geoff Sullivan's pages
TEMPEST - an unofficial information site
The Turing Bombe - the rebuild project at Bletchley Park
The UCL Crypto Group
Frode Weierud's home page
WW2 Codes and Ciphers - Tony Sale and Andrew Hodges

updated 12 June 2005

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