"Cryptology is the art and science of secret communication, and its purpose is to protect precious information and keep people safe. Learn about its building blocks: ciphers, codes, and keys"-- Provided by publisher.
Audience
Ages 8-12 Lerner Publications.
Grades 4-6 Lerner Publications.
Note
Description based on print version record and CIP data provided by publisher.
Contents
Ch. 1. What is cryptology? -- chapter 2. Ancient cryptology -- chapter 3. Secrets and rivalry -- chapter 4. Codes, ciphers, and war.