cryptography

Amy and Dan Cahill face their greatest challenge on their quest to find the thirty-nine clues, but in order to discover the secrets of their lineage they will have to make a choice that could impact the world's future.

Amy and Dan are separated while trying to retrieve a clue which is guarded by thousands of soldiers and worry they cannot succeed apart.

Presents an overview of various types of codes and ciphers used throughout history, famous cryptologists, and how to create your own secret messages.

Examines the evolution of codes and their impact on history, looking at key turning points in the development of codes, and explains why codes are relevant in the modern world, discussing the role of encryption in everyday life.

Benjamin Franklin Gates, obsessed with finding the mythical Knights Templar Treasure, finds himself having to steal the Declaration of Independence, which holds the key to the mystery of the treasure's whereabouts, in order to keep it out of another's dangerous hands.

Describes how the American military in World War II used a group of Navajo Indians to create an indecipherable code based on their native language.

Explains how to make and break several kinds of codes, how to use secret languages and how to make invisible inks.

A history and description of the Allies' code-breaking operations at Bletchley Park during World War II. Covers the events which led to the successful description of German, Italian, and Japanese military and diplomatic codes.

Presents an overview of various types of codes and ciphers used throughout history, famous cryptologists, and how to create your own secret messages.

Describes various types of codes and ciphers, including the genetic code, and how useful they are to spies.