Big Machines

Big Machines

Cryptographic Security of the German Enigma, Japanese PURPLE, and US SIGABA/ECM Cipher Machines

by Stephen J. Kelley


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Product description...

Why do Some Cryptographic Systems Fail?

If you actually want to know how World War II machine cipher systems were made—and broken—this book is indispensable. Kelley covers the “big three” systems: Germany’s Enigma; the Japanese diplomatic cipher machine known by its codename, Purple; and the US Army-Navy ECM/SIGABA. He tells us how each was developed and by whom, how it worked, how it was used, and how and why it was (or in the case of SIGABA, never was) broken. Without elaborate mathematics he makes the principles of these machines and their solutions clear and also evaluates their strengths and weaknesses.

Product details...

Format: 6 x 9 Black & White Paperback, 235 pages
Publisher: Outskirts Press (Mar 08, 2018)
ISBN10: 1478793988
ISBN13: 9781478793984
Genre: HISTORY / Military / World War II

Author Information...

Stephen J. Kelley is an employee of the US government and an amateur historian specializing in communications security and cryptology.
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