On mySimon: Lemony Snicket: Trouble Begins Book Set
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Overview:

As Internet telephony systems continue to replace existing Public Switched Telephone Network systems, proxy servers running the Session Initiation Protocol (SIP) will continue to grow in importance for Voiceover-IP deployments that use SIP for call signaling. Since the protection of the global telecommunications infrastructure is critical to people's everyday lives, ensuring the availability of SIP proxy servers under attack should be a high priority. This paper first describes a disruptive denial-of-service attack that exploits the semantics of the SIP protocol to exhaust resources at a stateful SIP proxy server. Unlike previous approaches that focus on flooding-based denial-of-service attacks, the paper considers attacks that do not result in high incoming call traffic rates at the SIP proxy server.

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Format:PDFSize:138 KB
Date:Sep 2008
Pages:8

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