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Using decoys to block SPIT in the IMS
Includes bibliographical references (leaves 106-111)
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| Format: | Thesis |
| Language: | English |
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Department of Electrical Engineering
2014
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| _version_ | 1867613182901616640 |
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| access_status_str | Open Access |
| author | Salehin, S M Akramus |
| author2 | Ventura, Neco |
| author_browse | Salehin, S M Akramus Ventura, Neco |
| author_facet | Ventura, Neco Salehin, S M Akramus |
| author_sort | Salehin, S M Akramus |
| collection | Thesis |
| description | Includes bibliographical references (leaves 106-111) |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/5110 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:05.102Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Electrical Engineering |
| publisherStr | Department of Electrical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/5110 Using decoys to block SPIT in the IMS Salehin, S M Akramus Ventura, Neco Electrical Engineering Includes bibliographical references (leaves 106-111) In recent years, studies have shown that 80-85% of e-mails sent were spam. Another form of spam that has just surfaced is VoIP (Voice over Internet Telephony) spam. Currently, VoIP has seen an increasing numbers of users due to the cheap rates. With the introduction of the IMS (IP Multimedia Subsystem), the number of VoIP users are expected to increase dramatically. This calls for a cause of concern, as the tools and methods that have been used for blocking email spam may not be suitable for real-time voice calls. In addition, VoIP phones will have URI type addresses, so the same methods that were used to generate automated e-mail spam messages can be employed for unsolicited voice calls. Spammers will always be present to take advantage of and adapt to trends in communication technology. Therefore, it is important that IMS have structures in place to alleviate the problems of spam. Recent solutions proposed to block SPIT (Spam over Internet Telephony) have the following shortcomings: restricting the users to trusted senders, causing delays in voice call set-up, reducing the efficiency of the system by increasing burden on proxies which have to do some form of bayesian or statistical filtering, and requiring dramatic changes in the protocols being used. The proposed decoying system for the IMS fits well with the existing protocol structure, and customers are oblivious of its operation. 2014-07-31T10:52:53Z 2014-07-31T10:52:53Z 2007 Master Thesis Masters MSc http://hdl.handle.net/11427/5110 eng application/pdf Department of Electrical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Electrical Engineering Salehin, S M Akramus Using decoys to block SPIT in the IMS |
| thesis_degree_str | Master's |
| title | Using decoys to block SPIT in the IMS |
| title_full | Using decoys to block SPIT in the IMS |
| title_fullStr | Using decoys to block SPIT in the IMS |
| title_full_unstemmed | Using decoys to block SPIT in the IMS |
| title_short | Using decoys to block SPIT in the IMS |
| title_sort | using decoys to block spit in the ims |
| topic | Electrical Engineering |
| url | http://hdl.handle.net/11427/5110 |
| work_keys_str_mv | AT salehinsmakramus usingdecoystoblockspitintheims |