cryptography

Chronicles the lives of Elizebeth Friedman and her husband, William F. Friedman, cryptographers who helped the United States government during the early and mid-twentieth century, and looks at the history of code-breaking.

Recalls the history of the 10,000 American women who served in the U.S. Army and Navy as code breakers during World War II.

In the South Pacific in 1944 and 1945, military battles raged between the United States and Japan. Surrounded by rattling bullets and exploding bombs, a group of Navajo Marines sent secret messages back and forth. They used a code they had created from the Navajo language, a code the enemy was never able to crack. These young men had been recruited from their homes in the American Southwest. They brought with them incredible physical stamina and a language that had never been written down. Learn more about the Navajo code talkers---brave, creative heroes who used their unbreakable code to help the Allies win the war.

Describes the role of a select group of Navajo Marines who developed a code based on their own native language that provided a means for secure communications among American forces in the Pacific during World War II.

Math has always been key to warfare. From making sure an army has enough supplies to recording casualties and damage, discover how math and calculations lie at the heart of warfare.

The stories of some of the individuals who have shaped cryptography are engagingly told in this narrative.

Readers can anticipate an intriguing overview of the ciphers, codes, algorithms, and keys used in real-life situations to keep peoples' information safe and secure.

Recalls the history of the 10,000 American women who served in the U.S. Army and Navy as code breakers during World War II.

Examines the history of cryptography, from encryption in Ancient Greece to the role it plays in our modern daily lives. Includes a glossary, resources for further information, and color photographs.

The members of the Code Busters Club take a class trip to Angel Island, the Ellis Island of the West, where they discover a mysterious box with a connection to one of the Code Busters.