Codes and Ciphers

By Sean Callery

Book Overview

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 devicesHieroglyphics, Native American smoke signals, flags, and semaphore Braille, Morse code, and computer languageMono- and polyalphabetic letter substitutionComputer algorithms

• Format: Paperback
• Language: English
• ISBN: 0061374075
• ISBN13: 9780061374074
• Release Date: January 2008
• Publisher: Harper Paperbacks
• Length: 192 Pages
• Weight: 0.90 lbs.
• Dimensions: 0.5" x 5.8" x 8.3"