Table of Contents

Forward. Introduction. Basic Security Concepts. Internet Security Concepts. Security Architectures. Security in Related Applications. Authentication. Signal Security. Media Security. PSTN Interconnection Issues. Identity. Spam, Spim, and Spit. Putting it All Together, Conclusions.

About the Author

Alan B. Johnston is a distinguished technical member at MCI and an adjunct assistant professor of electrical engineering at Washington University in St. Louis. He holds a B.E.(Hons) in electrical and electronic engineering from the University of Melbourne, Australia and a Ph.D. in electrical engineering from Lehigh University. He is a co-author of the SIP specification RFC 3261 and several other SIP-related RFCs.