*This was once posted on my USNA webpage. Since I’ve retired, I’m going to repost it here.*

**Coding Theory and Cryptography:From Enigma and Geheimschreiber to Quantum Theory**

(David Joyner, ed.) Springer-Verlag, 2000.

ISBN 3-540-66336-3

Summary: These are the proceedings of the “Cryptoday” Conference on Coding Theory, Cryptography, and Number Theory held at the U. S. Naval Academy during October 25-26, 1998. This book concerns elementary and advanced aspects of coding theory and cryptography. The coding theory contributions deal mostly with algebraic coding theory. Some of these papers are expository, whereas others are the result of original research. The emphasis is on geometric Goppa codes, but there is also a paper on codes arising from combinatorial constructions. There are both, historical and mathematical papers on cryptography.

Several of the contributions on cryptography describe the work done by the British and their allies during World War II to crack the German and Japanese ciphers. Some mathematical aspects of the Enigma rotor machine and more recent research on quantum cryptography are described. Moreover, there are two papers concerned with the RSA cryptosystem and related number-theoretic issues.

**Chapters**

**Reminiscences and Reflections of a Codebreaker**, by Peter Hilton pdf**FISH and I**, by W. T. Tutte pdf**Sturgeon, The FISH BP Never Really Caught**, by Frode Weierud, pdf**ENIGMA and PURPLE: How the Allies Broke German and Japanese Codes During the War**, by David A. Hatch pdf**The Geheimschreiber Secret**, by Lars Ulfving, Frode Weierud pdf**The RSA Public Key Cryptosystem**, by William P. Wardlaw pdf**Number Theory and Cryptography (using Maple)**, by John Cosgrave pdf**A Talk on Quantum Cryptography or How Alice Outwits Eve**, by Samuel J. Lomonaco, Jr. pdf**The Rigidity Theorems of Hamada and Ohmori, Revisited**, by T. S. Michael pdf**Counting Prime Divisors on Elliptic Curves and Multiplication in Finite Fields**, by M. Amin Shokrollahi pdf,**On Cyclic MDS-Codes**, by M. Amin Shokrollahi pdf**Computing Roots of Polynomials over Function Fields of Curves**, by Shuhong Gao, M. Amin Shokrollahi pdf**Remarks on codes from modular curves: MAPLE applications**, by David Joyner and Salahoddin Shokranian, pdf

For more cryptologic history, see the National Cryptologic Museum.

This is now out of print and will not be reprinted (as far as I know). The above pdf files are posted by written permission. I thank Springer-Verlag for this.

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