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ETD Abstract Container

Abstract Header

Security mechanisms for multimedia networking

Tosun, Ali Saman
http://rave.ohiolink.edu/etdc/view?acc_num=osu1054700514

Abstract Details

2003, Doctor of Philosophy, Ohio State University, Computer and Information Science.
With the increased use of multimedia in daily communications, it is necessary to develop efficient and secure transmission mechanisms that are specifically tailored for multimedia. Real-time characteristics and high bandwidth requirements of multimedia data requires efficient and scalable mechanisms. For success of commercial multimedia distribution, security mechanisms will be a major factor. Most of the research on multimedia security have focused on watermarking related issues. Security issues related to streaming is not researched in detail and requires further progress. This dissertation contains my research on security mechanisms for multimedia networking. I have investigated several issues including passive attacks on video streams, secure layered lossless video coding, end-to-end security for proxy-based video distribution and security mechanisms for wireless video distribution. Most the above issues were not researched by the multimedia community and this thesis forms a first step for secure, scalable multimedia networking. Data transmitted using streaming algorithms depend on available network bandwidth and characteristics of the movie being streamed. Reliance on movie characteristics will reveal information even if the movie is encrypted. Experimental results show that movies can be identified using network traces. To address this problem, I have developed a framework based on MPEG that prevents passive attacks on encrypted movie streams. Many applications including scientific visualization require lossless video streaming. To facilitate this I have developed a dual-layer framework, an MPEG layer and lossless differences, that provides lossless view of video and reduces bandwidth requirement and security overhead for many settings. Proxy-based approaches are used for many multimedia applications. I have investigated end-to-end security in proxy based systems with operations for frame dropping, transcoding. My analysis shows that frame dropping can easily be supported using end-to-end security but transcoding is much harder and can be supported in limited form for authentication. Finally, I have focused on wireless video transmission. For handheld devices with limited capabilities, security mechanisms should be light-weight and introduce minimal overhead. My research on wireless video transmission has shown that encryption overhead can be reduced by using layering and error-preserving encryption.
Wu-chi Feng (Advisor)
135151 p.
Computer Science
security; multimedia networking

Recommended Citations

Citations

  • Tosun, A. S. (2003). Security mechanisms for multimedia networking [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1054700514

    APA Style (7th edition)

  • Tosun, Ali. Security mechanisms for multimedia networking. 2003. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1054700514.

    MLA Style (8th edition)

  • Tosun, Ali. "Security mechanisms for multimedia networking." Doctoral dissertation, Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=osu1054700514

    Chicago Manual of Style (17th edition)

osu1054700514
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© 2003, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.