Security and cryptography in images and video using elliptic curve cryptography (ECC)

Abstract

This chapter presents the analysis and evaluation of scalable video coding (SVC). It describes encryption and authentication schemes for SVC, respectively. An SVC bitstream consists of a low-quality video sub-bitstream as well as one or more supplement sub-bitstreams. Scalable video streaming techniques are widely used in real time content distribution due to their adaptability to a variety of heterogeneous network and platform settings. Partial encryption is to preserve multimedia property by treating different data in a multimedia stream differently according to their importance. The chapter investigates whether partial encryption in H.264/SVC can protect data confidentiality. Most video coding standards including MPEG-2, MPEG-4, and H.264 achieve compression by identifying similarities in the spatial and the temporal dimensions. The common flaw of existing transform-domain content-based authentication (CBA) schemes is that the feature extracted is insufficient to truly represent the video semantic. The chapter demonstrates transform-domain attack examples that can be applied on each category of CBA schemes.