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Web Links
The Bletchley Park Trust
Read about B.P.'s storied history, learn about upcoming events and how you can volunteer at the museum today, access a detailed list of links related to codebreaking, and find out more about B.P. on this charity's thorough and well-illustrated Web site.

The computer museum at Bletchley Park
The home page of Bletchley Park, self-described as "Britain's Best Kept Secret," offers detailed information on this fascinating museum as well as on the Enigma machine, the Lorenz cipher machines, the Colossus, and other devices used to make and break codes during World War II. You can even try your hand at cracking codes for B.P. today.

The American Cryptogram Association
Founded in the 1920's, this nonprofit volunteer organization is devoted to disseminating cryptographic knowledge. Members construct problems in classical cipher systems for other members to solve without knowing the secret key. The site provides information on joining, examples of cryptograms, and electronic versions of the organization's newsletter.

National Cryptologic Museum
Established in 1993 to provide a "peek behind the curtain" at this once-secret world, this museum's Web site offers information on the institution as well as selections from its exhibits.

The Cryptography FAQ
This site answers many of the questions asked frequently about cryptography, cryptology, secret codes, ciphers, and digital signatures. It also has a list of cryptological references, journals, and books.

Alan Turing - Home Page
This Web site is devoted to Alan Turing, the fascinating man who helped to crack the Enigma.

MAW 97 Ciphers: The Enigma Machine
This page offers a nice collection of resources related to the Enigma machine. Included are articles, a downloadable cryptography course, and an electronic simulation of the Enigma.

The Code Book: The Evolution of Secrecy From Mary, Queen of Scots to Quantum Cryptography by Simon Singh. New York: Doubleday, 1999
Singh, who directed the NOVA program "The Proof," based on his bestselling book Fermat's Enigma, delves into the history and complexities of codes and ciphers as only one with a doctorate in physics can do well. Includes a Cipher Challenge with a $15,000 award (deadline 10/1/2000).

Codebreakers: The Inside Story of Bletchley Park edited by F. H. Hinsley and Alan Stripp. Oxford: Oxford University Press, 1994
For those who want to delve more deeply into what transpired at Bletchley Park, written by the individuals whom Churchill described as the "secret weapon" that "won the war" - the men and women who worked there. Chapters on the various huts, bombes, and codes, including one on how the Enigma works.

Station X: Decoding Nazi Secrets by Michael Smith. New York: TV Books, 1999
A highly readable history of the codebreaking operations at Bletchley Park, interspersed with lively anecdotes told by the B.P.'s codebreakers and support staff. We excerpted this book for Mind of a Codebreaker.

Internet Cryptography by Richard E. Smith. Reading, Mass.: Addison Wesley Longman, 1997
This book is a comprehensive guide to sending information securely over the Internet. Managing secret keys, the basics of private- and public-key cryptography, securing electronic mail - all is covered extensively and complemented by helpful diagrams. Smith wrote Are Web Transactions Safe.

Special Thanks
Christine Large, Bletchley Park Trust
Darren Wray
David Hamer
Rhianon Williams, Macmillan
Peter Kaufman, TV Books
Liz Mann, Oxford University Press

Lauren Aguirre, Senior Producer
Maureen Dolan, Intern
Kim Ducharme, Senior Designer
Rick Groleau, Hot Science Developer
Sarah Ince, Intern
Brenden Kootsey, Technologist
Rob Meyer, Production Assistant
Jeffrey Oar, Intern
Carla Raimer, Associate Producer
Peter Tyson, Producer
Anya Vinokour, Senior Designer

Crack the Ciphers | Send a Coded Message | A Simple Cipher
Are Web Transactions Safe? | Mind of a Codebreaker | How the Enigma Works
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