Advanced technology, highlighted by the advent of the Internet, has increased privacy concerns. This book explores all aspects surrounding this topic. It addresses security issues involving computer viruses, hackers, and e-mail. Public-key cryptography is explained to show how identity characteristics are embedded into electronic smart cards such as ATM cards. Mathematical background of cryptography is presented along with practical applications and detailed exercises. With nearly 200 examples and diagrams, this book traces the history of cryptography and related concepts in an accessible way, providing references for those interested in further research. Copyright (C) Muze Inc. 2005. For personal use only. All rights reserved.