Evaluation of and Mitigation against Malicious Traffic in SIP-based VoIP Applications in a Broadband Internet Environment

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dc.contributor.authorWulff, Tobias
dc.date.accessioned2011-04-12T23:25:44Z
dc.date.available2011-04-12T23:25:44Z
dc.date.issued2010en
dc.description.abstractVoice Over IP (VoIP) telephony is becoming widespread, and is often integrated into computer networks. Because of his, it is likely that malicious software will threaten VoIP systems the same way traditional computer systems have been attacked by viruses, worms, and other automated agents. While most users have become familiar with email spam and viruses in email attachments, spam and malicious traffic over telephony currently is a relatively unknown threat. VoIP networks are a challenge to secure against such malware as much of the network intelligence is focused on the edge devices and access environment. A novel security architecture is being developed which improves the security of a large VoIP network with many inexperienced users, such as non-IT office workers or telecommunication service customers. The new architecture establishes interaction between the VoIP backend and the end users, thus providing information about ongoing and unknown attacks to all users. An evaluation of the effectiveness and performance of different implementations of this architecture is done using virtual machines and network simulation software to emulate vulnerable clients and servers through providing apparent attack vectors.en
dc.identifier.urihttp://hdl.handle.net/10092/5120
dc.identifier.urihttp://dx.doi.org/10.26021/1466
dc.language.isoen
dc.publisherUniversity of Canterbury. Computer Science and Software Engineeringen
dc.relation.isreferencedbyNZCUen
dc.rightsCopyright Tobias Wulffen
dc.rights.urihttps://canterbury.libguides.com/rights/thesesen
dc.subjectVoice over IP (VoIP)en
dc.subjectSession Initiation Protocol (SIP)en
dc.subjectDenial of Service (DoS)en
dc.subjectmalwareen
dc.subjectIntrusion Detection System (IDS)en
dc.subjectevent correlationen
dc.subjectsecurity architectureen
dc.titleEvaluation of and Mitigation against Malicious Traffic in SIP-based VoIP Applications in a Broadband Internet Environmenten
dc.typeTheses / Dissertations
thesis.degree.disciplineComputer Scienceen
thesis.degree.grantorUniversity of Canterburyen
thesis.degree.levelMastersen
thesis.degree.nameMaster of Scienceen
uc.bibnumber1632846en
uc.collegeFaculty of Engineeringen
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