Computers and the internet forever changed how we communicate messages and other information. They also created new challenges for how we keep that communication private. That is where digital cryptology, the study of secret digital communication, comes in. Learn how professional cryptologists work to outsmart hackers and cyberterrorists trying to access private information. Then try it yourself with a hands-on digital cryptology activity!

In a world where data flows freely and communication spans the globe, the need for secure and private communication has never been more critical. This book invites you on an illuminating journey into the captivating realm of secure communication, demystifying the intricate techniques that have protected secrets and guarded information for centuries. Delve into the heart of cryptology and discover its essential components. From the foundational concepts...

En tiempos de guerra, los códigos indescifrables ayudan a los ejércitos a ganar batallas. ¿Qué mejor código que un lenguaje avanzado? Lee acerca de cómo los marines navajos arriesgaron sus vidas para traducir mensajes secretos durante la Segunda Guerra Mundial. Aprende sobre qué hace que el idioma navajo sea ideal para codificar mensajes y el vocabulario especial que los codificadores usaban en la batalla. Finalmente, intenta traducir los mensajes. In...

Imagina tener un trabajo que ha existido durante miles de años. Las personas llamadas criptólogos han estado creando y descifrando códigos casi desde que los humanos comenzaron a escribir. La criptología es la ciencia de la comunicación secreta. Se utiliza para proteger la información de los gobiernos, los bancos y las personas comunes y corrientes todos los días. Aprende sobre los criptólogos famosos a través de hechos y fotos fascinantes,...

Dive into the secret history of . . . secrets! 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. People have wanted to hide messages and important information for millennia. Read how history's coolest codes and ciphers have progressed from belts and sticks to rotating disks and supercomputers. Use your cryptology...

Imagine having a job that has been around for thousands of years. People called cryptologists have been making-and breaking-codes almost as long as humans have written things down. Read about the historical code makers and breakers who protected their countries by coding and decoding messages for their governments, and the modern cryptologists who keep emails, texts, and online purchases secure.

In wartime, unbreakable codes help armies win battles. And what better code than an advanced language. The Navajo language was key to the success of the Battle of Iwo Jima during World War II. Read how Navajo Marines risked their lives to translate secret messages during World War II. Learn what makes the Navajo language ideal for encoding messages and the special vocabulary the code talkers used in battle. Finally, try your hand at translating...

AMERICAN EXPERIENCE: THE CODEBREAKER tells the story of Elizebeth Smith Friedman, a groundbreaking cryptanalyst who helped develop the codebreaking methods that led to the creation of the powerful new science of cryptology.

"From bestselling and award-winning author-illustrator Marissa Moss, praised for her accessible blend of narrative nonfiction with graphic novel-style chapter openers in The Woman Who Split the Atom: The Life of Lise Meitner, comes another fascinating story of a groundbreaking woman in STEM. One of the founders of U.S. cryptology who would eventually become one of the world's greatest code breakers, Elizebeth Smith Friedman (1892-1980) was a brilliant...