Cryptanalysis of Hagelin machine pin wheels
Cryptologia, Oct 2002 by Sullivan, Geoff
Geoff Sullivan
ADDRESS: 64 Tennyson Road, Headless Cross, Redditch, Worcs. B97 5BJ UNITED KINGDOM. geoff@blueangel.. demon. co. uk.
BIOGRAPHICAL SKETCH
Geoff Sullivan is a computer programmer and electronics engineer working on the design of scientific instruments. His main interest in cryptography is the computer simulation and computer cryptanalysis of historic cipher machines. A major ambition has been to introduce the Grateful Dead into the pages of Cryptologia.
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