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Description
Spies, secret societies, religious cults as well as anyone who has used an ATM or the internet rely on the making and breaking of codes for security. Like a spy novel combined with the technology of a Tom Clancy thriller, Codes, Ciphers and Other Clandestine Communication successfully... read more
First Sentence
One of the major categories of cryptology, ciphers are a method of concealment in which the primary unit is the letter.
Table of Contents
Authors & Contributors
- Fred B. Wrixon (Author)
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