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When I decided to do a sabbatical with Symantec Research Labs Europe in the
beautiful French Riviera, I was asked to work on a project about Voice over IP
(VoIP) security. The goal of the VAMPIRE Project1 was to understand the threats
and vulnerabilities of VoIP systems, and to inform the direction of further research
efforts. Although I was interested in this problem space, I only knew the subject
from the point of view of a security researcher who has not studied VoIP itself in
any great depth. As such, this project served as an ideal vehicle in educating me
about VoIP security.
This book is the result of more than 18 months’ work to learn what the challenges
and opportunities are in securing VoIP. It is primarily addressed to students
and researchers who want to learn about VoIP security, and is meant as both an introduction
to the problem space and an extensive reference to related work as of
early 2011. It is also intended as a case study on how to approach and map out a
new research area.
The structure of this book reflects my learning process. We start by learning the
lay of the land (Overview of VoIP Systems).We then proceed to find out what actual
problems are encountered by VoIP systems by looking at reported vulnerabilities
(Survey and Analysis of VoIP/IMS Vulnerabilities). Finally, we explore as much
of the prior work in this space as I could find (Survey of VoIP Security Research
Literature). The book concludes with some comparative analysis and practical recommendations
for securing VoIP systems and infrastructures. |
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 | | | | The Seven Desires of Every HeartWe believe that God created us with seven basic, universal desires. Each of us desires to be heard and understood, to be affirmed, to be blessed, to be safe, to be touched, to be chosen, and to be included. Having and fulfilling these desires validates our very existence. If these basic desires are fulfilled, we will enjoy a deeper and richer... |
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