August 2007
Intermediate to advanced
384 pages
9h 12m
English
book
Securing VoIP Networks: Threats, Vulnerabilities, and Countermeasures
by Peter Thermos, Ari Takanen
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Chapter 5. Signaling Protection Mechanisms
One of the core issues in VoIP security is protecting the signaling messages being exchanged between participants and components. Signaling messages are used to set up communications, and in order to also exchange and manage cryptographic keys to secure media streams. Signaling messages may traverse networks that maintain security policies of questionable quality and standards, which creates an opportunity for attack. The proper protection of signaling messages plays an important role in defending against threats and attacks, including unauthorized access of the control plane, fraud, eavesdropping, call diversion, and others. Therefore, it is critical to understand the importance of defining a set of ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.