As handy and useful as it is to communicate with smartphones, email, and texts, not to mention paying bills and doing banking online, all these conveniences mea

Explore the fascinating and rich world of Secret Key cryptography! This book provides practical methods for encrypting messages, an interesting and entertaining

Publisher Description

From the world's most renowned security technologist, Bruce Schneier, this 20th Anniversary Edition is the most definitive reference on cryptography ever publis

An introduction to the basic mathematical techniques involved in cryptanalysis.