76 страниц. 2013 год. LAP Lambert Academic Publishing This book introduces a concept of Rotation, that vital to any modern cryptography, especially Advanced Encryption Standard (AES). Firstly, the book presents an introduction a bout classical and non-classical cryptography and brief overview of cryptography throughout the history of human. This book should be useful especially for the researchers in the field of cryptosystems, or anyone else interested in the field of cryptology.