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Computational and probabilistic methods in cryptanalysis: the Kryha machine

Published online by Cambridge University Press:  01 July 2016

Alan G. Konheim
Alan G. Konheim*
Affiliation:
University of California, Santa Barbara
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Extract

In the early part of this century, a mechanical ‘ciphering machine’ was invented and marketed by a Berlin engineer, Alexander von Kryha. The Kryha machine performed a polyalphabetic substitution on text controlled by one of 1050 possible keys. In this lecture we describe the general principles of cryptanalysis and its interplay with probability theory and show how the Kryha machine may be cryptanalyzed.

Type
Applied Probability in Biology and Engineering. An ORSA/TIMS Special Interest Meeting
Information
Advances in Applied Probability , Volume 16 , Issue 1 , March 1984 , pp. 10
Copyright
Copyright © Applied Probability Trust 1984 

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