88 of 90 people found the following review helpful
A great read and a little more than just codes,
This review is from: The Code Book: The Evolution of Secrecy from Mary, Queen of Scots to Quantum Cryptography (Hardcover)
Mr. Singh traces the history of cryptography from its recorded inception in roman times up through current applications. While all of the chapters held my interest it was Mr. Singh's work in chapters 4 through 6 that I feel deserve particular note.
Chapter 4 deals with the war effort at Bletchley Park and the work on the Engima machine. Here Mr.Singh adds an additional dimension by providing some insight into the work of Alan Turning, the development of Colossus, the first (now reported) electronic programmable computer and the unrecognized cryptanalysts who broke Ultra and the other codes of WWII. Chapter 6 brings us up to present day cryptographic issues from RSA and PGP to philosophical issues of personal privacy in modern society with web centric commerce and online book reviews. At each step in the process Singh successfully combines the elements of a technical treatise with a human values and features. For those wanting to go a little further under the hood and look at the processes and algorithms in some of the codes mentioned in the text, several appendices at the end of the book should fill that yearning. I found the book informative and enjoyable to read.