Looking for a history book that would appeal to people who like math? Try "Codebreaker" -- a short history of cryptology: the study of codes and ciphers. Journalist Stephen Pincock, who is an editor ...

1. Introduction -- 2. From Julius Caesar to simple substitution -- 3. Polyalphabetic systems -- 4. Jigsaw ciphers -- 5. Two-letter ciphers -- 6. Codes -- 7. Ciphers for spies -- 8. Producing random ...

Known for his editing of poetry anthologies, Paul B. Janeczko studies another form of often-perplexing writing in Top Secret: A Handbook of Codes, Ciphers, and Secret Writing, illus. by Jenna LaReau.

In the context of cryptography, the un-transformed message is known as plaintext, the transformation is known as encryption and the transformed message is known as ciphertext. The encryption process ...

"This book is a continuation of The history of codes and ciphers in the United States prior to World War I ... and is essentially volume 2 of Historical background of the Signal Security Agency, ...

For over 200 years, the Beale Ciphers have guarded one of the largest lost treasures in American history. Only one of the three coded messages has ever been solved and the other two remain ...

In the 1930s, Elizebeth Friedman graced the covers of newspapers and was profiled by Reader’s Digest. She was a tireless and talented code breaker who brought down gangsters and Nazi spies. But after ...

We recently had a rainy weekend interrupt our original plans to go geocaching. Instead, I took inspiration from John Baichtel's recent posting - Codes For Kids - to introduce my kids to ciphers.