La Biblia De Los Codigos Secretos Herve Lehni... — Verified Source

Also known as the "one-time pad," theoretically unbreakable if used correctly.

Covers methods used by Homero, Julius Caesar, the Knights Templar, and Napoleon. La Biblia De Los Codigos Secretos Herve Lehni...

Early Renaissance polyalphabetic substitution. Gripenstierna Cylinder: A mechanical encryption device. Also known as the "one-time pad," theoretically unbreakable

Each chapter includes challenges for readers to solve using the techniques just explained. Also known as the "one-time pad

The Japanese diplomatic code broken by the US during WWII. La biblia de los códigos secretos - Amazon.com

Detailed explanations of the Enigma machine , the RSA algorithm , and the Zigzag cipher .