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The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet (English Edition) Kindle Edition
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|Länge: 1200 Seiten||Word Wise: Aktiviert||Sprache: Englisch|
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Kahn does not create a textbook for the serious cryptologist; such a work would be more mathematical in approach. What he does is give, from a layman's view, a good mid-level history of the art/science of cryptology. The first chapter, covering the cryptanalytic events of Pearl Harbor, brings you in; then he goes over the history of secret writing from the days of Egyptian hieroglyphics to roughly the present day. Interesting areas include the discussion of the European "black chambers" of the 1600s and 1700s, a good talk about how rumrunners in the Prohibition days used complex code/cipher combinations to thwart the Noble Experiment, and a highly entertaining chapter on the "ciphers" that proved Francis Bacon wrote Shakespeare's works.
The updated edition falls short in its attempt at updating, which is why I don't give another star to the book. The discussion of cryptography in the world of the Internet is far too thin to satisfy. This, of course, could be a function of the beast; the Internet and electronic cryptology changes faster than any book could keep up with. In addition, information on the Enigma and other areas of World War II cryptology, declassified since the previous edition, could have been added to increase understanding of this critical time. However, the remaining "classic" text is still excellent, and has served as the layman's reference on cryptologic history for thirty years.
As for myself, I have no idea how much a French livre was worth in 1570, and even if I did, I couldn't care less whether a cryptanalyst's annuity then was 100 or 10000 livres. I am sorry that all these great people died, but I think whether it was because of lung cancer or pneumonia is of little relevance. High school history was bad enough, I do not need any more useless historical data, thank you very much.
What I expected from the book was that it would tell me a lot about the development of the METHODS of cryptography and cryptanalysis, describing what people tried, what worked, what didn't and why. (Including not only the algorithmic but also organizational and management issues such as key management.) If you have a similar interest, FORGET ABOUT Kahn's book. Kahn gives a decent description of the encrypting/coding methods, but this is so scattered among the irrelevant pieces of information that it is hardly worth the "mining" effort. There is HARDLY ANYTHING about the methods used to breaking the codes.
Mr. Kahn made an honest effort in researching the field (except for the chapter about the modern developments - DES and the like - that is just glued to the end of the book to make it sell better). Still, he shouldn't have poured everything he ever read into his book. Less would have been more.
The Codebreakers is reputed to be the best book on the history of cryptography. Apart from the content, I found the style only so-so. I wonder how poorly written the other books are...
From early Sparta and Rome to the present day, the strengths and weaknesses of systems and devices are presented in clear, concise terms -- occassionally with a bit of levity, where appropriate. Novices in the field will find much useful -- and highly interesting -- information. Professionals always find reminders of the fallability of "unbreakable" systems.
Kahn's writing style is clear, concise, and analytical. It is never boring.
I was employed by a maker of Cryptographic equipment, and was authorized to discuss key generator and cipher system issues with the heads of national governments. A copy of "Codebreakers" was our most requested -- and welcomed gift. That speaks more eloquently than any words I might craft.
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AS EVERYONE IN THE INTELLIGENCE COMMUNITY KNOWS, THIS IS THE CRYPTO BIBLE. HAVING READ BOTH THE TITLE AND THE SYNOPSIS ABOVE (WHICH BOTH CLEARLY STATE THAT THIS IS AN HISTORY), YOU... Lesen Sie weiter...Veröffentlicht am 30. April 2000 von M. R. ZOGLIO
This book is the best i have readed. Of all the other books i have readed, David Khan's book Go's in details about codes & cipher.Veröffentlicht am 8. Dezember 1998 von email@example.com
This book is the meat and potatos of this subject. I know of no other book which attempts or even reaches for the scope of this one. Lesen Sie weiter...Veröffentlicht am 28. September 1998 von Chris Barker
My previous review, "terrible prose," refers to the 1996 SCRIBNER edition. How can you assume, and incorrectly inform readers, that it refers to some other edition? Lesen Sie weiter...Am 23. August 1998 veröffentlicht
This is the view of a french reader. I bought the french translation in 1980 and was enthralled. Now that I've seen the original one, I realized that many things were left over in... Lesen Sie weiter...Am 22. Juli 1997 veröffentlicht
I agree entirely with firstname.lastname@example.org. I am giving this book a "5" because it's a must-have 10 if you don't already have a copy of the first edition, and a worthless 1 if... Lesen Sie weiter...Am 23. November 1996 veröffentlicht
The original version of Codebreakers is a wonderful, detailed
history of cryptography and spies. Lesen Sie weiter...
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