The Codebreaker's Handbook

Serves as a guide for a cryptographer and code-buster. This work includes: codebreaking methods, examples and tests; how to develop complex ciphers; tools for encrypting messages, from invisible ink to computer pixels; and, a history of how codes and ciphers have developed, taking in the ancient Greeks, the Kama Sutra,and computer ciphers.

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A must-have book for secret agents in the making.

Ever wondered how to make and crack codes and ciphers? Herbie Brennan's essential guide contains everything a serious cryptographer and code-buster needs, including:

- Codebreaking methods, examples and tests
- How to develop complex ciphers
- Tools for encrypting messages, from invisible ink to computer pixels
- A history of how codes and ciphers have developed, taking in the ancient Greeks, the Kama Sutra, the Enigma machine and computer ciphers

And much, much more!

Contains black-and-white illustrations throughout.