As a few people have requested, here's my current bibliography of DES source code listings found in various widely published books or magazines. Note that I have explicitly excluded the dozens of books and publications that merely *describe* the DES algorithm -- even descriptions complete enough to use as a basis for implementation. They don't count because, as we all know, only Americans are smart enough to turn an algorithm description into C code (or so our government believes.)

Additions or corrections to this list are welcome. Again, I'm only interested in actual code listings. --Phil

*The Standard Data Encryption Algorithm*, Harry Katzan
Jr, Petrocelli Books, 1977 ISBN 0-89433-016-0 (APL).

*Computer Networks*, Andrew S. Tanenbaum, Prentice Hall
(both editions; second edition is ISBN 0-13-162959-X). (Pascal)

*Numerical Recipes*, William H. Press et al, Cambridge
University Press. (Fortran and Pascal version is ISBN
0-521-30811-9. Also in *Numerical Recipes in C*).

*UNIX System Security*, Wood and Kachan, Hayden. ISBN
0-8104-6267-2.

*Byte Magazine*, April 1977 (6502 Assembler).

*Cryptography: An Introduction to Computer Security*,
Seberry and Pieprzyk, Prentice Hall Australia. (C)

*Mathematical Cryptology for Computer Scientists and
Mathematicians*, Wayne Patterson, Rowman and Littlefield,
1987. ISBN 0-8476-7438-X.

*Introduction to the Analysis of the Data Encryption
Standard (DES)*, Wayne G. Barker, ISBN 0-89412-169-3 (soft
cover), 0-89412-170-7 (library bound), 1991, Aegean Park Press,
Appendix G. (Basic, of all things).

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