Characterizing the impacts of VPN security models on streaming video

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Proceedings titleEighth Annual Communication Neworks and Services Research Conference (CNSR) 2010
ConferenceThe 8th International Conference on Communications Networks and Services Research (CNSR 2010), May 11-14, 2010, Montréal, Québec
Pages152159; # of pages: 8
SubjectInformation and Communications Technologies
AbstractVideo-based communications are becoming more important within domains, such as health care, that have stringent security and privacy requirements for data. VPN-based encryption is a now common part of organizational security architectures. It is expected that the time required to perform encryption at a VPN concentrator and decrytion at the client side video may add significant overhead to the transmission of real-time video, which is already delay-sensitive. The real impacts of this overhead on Quality of user Experience are notwell-understood. This paper describes experimental methods for measuring the network-level impacts of virtual private network (VPN) encryption on real-timevideo in wired and wireless networks. It also presents experimental results using these methods. This paper concludes that VPN-based encryption introduces significant latency to real-time video and that further analysis is warranted to characterize the transitive impacts of such latency on the quality of user experience.
Publication date
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Information Technology
Peer reviewedYes
NPARC number15194299
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Record identifier2e7655bc-c8a5-4a41-a504-1e1b2d96e703
Record created2010-06-10
Record modified2016-05-09
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