"Discusses different methods for breaking secret codes"--Provided by publisher.

This unique book explains the basic issues of classical and modern cryptography, and provides a self contained essential mathematical background in number theor

Challenges the reader to reveal quotations from prominent people in history and fiction by using a collection of coded alphabets devised by actual historical fi

Learn how to program in Python while making and breaking ciphers—algorithms used to create and send secret messages! After a crash course in Python programmin

Ever since humans first began to communicate, we’ve had secrets to keep — secrets of state, war, business, or the heart. From the moment the first secret me