This is a great beginner-level book to learn about the art and science of breaking cipher systems. What makes this book even more valuable is that many dozens of problems, all carefully selected and constructed, are keyed to the text, so that the student can solve problems while learning.
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Descripción Aegean Park Pr, 1976. Paperback. Estado de conservación: New. Never used!. Nº de ref. de la librería P110894120026