Title

No tradeoff between confidentiality and performance: an analysis on H.264/SVC partial encryption

Publication Type

Conference Proceeding Article

Publication Date

9-2012

Abstract

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.

Keywords

Scalable Video Coding, H.264/SVC, Partial Encryption

Discipline

Information Security

Research Areas

Information Security and Trust

Publication

Proceedings of the 13th Joint IFIP TC6 and TC11 Conference on Communications and Multimedia Security (CMS 2012), LNCS 7394, Best Paper Award

First Page

72

Last Page

86

Identifier

10.1007/978-3-642-32805-3_6

Publisher

Springer Verlag

City or Country

Canterbury, UK

Additional URL

http://dl.acm.org/citation.cfm?id=2413403