No tradeoff between confidentiality and performance: an analysis on H.264/SVC partial encryption
Conference Proceeding Article
Partial encryption is often used as a tradeoff between security and performance to protect scalable video data. In this paper, we argue that although partial encryption is strong enough for access control, it is not adequate for content confidentiality protection. We conduct experiments to show that partially encrypted H.264/SVC (scalable video coding) streams leak significant content information from the enhancement layers in all three scalability dimensions. Our analysis concludes that such leakage is caused by the underlying coding techniques used in H.264/SVC, and all layers should be encrypted to protect confidential video streams.
Scalable Video Coding, H.264/SVC, Partial Encryption
Information Security and Trust
Proceedings of the 13th Joint IFIP TC6 and TC11 Conference on Communications and Multimedia Security (CMS 2012), LNCS 7394, Best Paper Award
City or Country
Wei, Zhuo; DING, Xuhua; DENG, Robert H.; and WU, Yongdong.
No tradeoff between confidentiality and performance: an analysis on H.264/SVC partial encryption. (2012). Proceedings of the 13th Joint IFIP TC6 and TC11 Conference on Communications and Multimedia Security (CMS 2012), LNCS 7394, Best Paper Award. 72-86. Research Collection School Of Information Systems.
Available at: http://ink.library.smu.edu.sg/sis_research/1652