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An Ontological Approach to SIP DoS Detection
Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT. (Department of Computer Science)
Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT. (Department of Computer Science)
2010 (engelsk)Independent thesis Basic level (degree of Bachelor), 15 poäng / 22,5 hpOppgave
Abstract [en]

Traditional public switched telephone networks (PSTN) are replaced more and more by VoIP services these days.  Although it is good for saving costs, the disadvantage of this development is that VoIP networks are less secure than the traditional  way of transmitting voice. Because VoIP networks are being deployed in open environments and rely on other network  services, the VoIP service itself becomes vulnerable to potential attacks against its infrastructure or other services  it relies on.

This thesis will present a discussion of security issues of the Session Initiation Protocol (SIP), the signalling protocol for  VoIP services. The main focus is on active attacks against the protocol that aim to reduce the service's availability -- so called  Denial of Service (DoS) attacks.

Existing countermeasures and detection schemes do not adequately differentiate between DoS attacks. However, the differentiation  is important with respect to performance loss, as various protection schemes involve more computationally intensive processes.

Based on that discussion, this thesis attempts to provide an ontological approach to describing, and eventually preventing attacks from  having their intended effects.

sted, utgiver, år, opplag, sider
2010. , s. 78
Emneord [en]
SIP, VoIP, DoS, Denial of Service, Ontology
HSV kategori
Identifikatorer
URN: urn:nbn:se:kau:diva-5100OAI: oai:DiVA.org:kau-5100DiVA, id: diva2:289880
Presentation
2010-01-22, 21D313, Karlstads Universitet, 65188 Karlstad, Sweden, 08:15 (engelsk)
Uppsök
Technology
Veileder
Examiner
Tilgjengelig fra: 2010-01-28 Laget: 2010-01-25 Sist oppdatert: 2018-01-12bibliografisk kontrollert

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