Codes and Ciphers

Codes and Ciphers
ISBN-10
0061374075
ISBN-13
9780061374074
Series
Codes and Ciphers
Category
Reference
Pages
196
Language
English
Published
2008-01-22
Publisher
Harper Collins
Author
Sean Callery

Description

Everything from smoke signals to military encryption devices Codes and Ciphers reveals the development and role of secret communications throughout history and offers practical advice on how to make codes (whether by pencil and paper or by computer) and how to break them! Inside you will find information on: Code-breaking devices Hieroglyphics, Native American smoke signals, flags, and semaphore Braille, Morse code, and computer language Mono- and polyalphabetic letter substitution Computer algorithms

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