A Video Sensing Oriented Format-compliant Entropy Coding Encryption Scheme and Embedded Video Processing System

Abstract

Information security is an important issue in IOT applications such as multimedia sensing. Firstly, the study is aiming to achieve a balance between the security of massive multimedia data and the limited computation with energy resources in IOT system, while an analysis model for optimizing the protection of multimedia data is proposed. Secondly, a new lightweight format-compliant video encryption scheme is presented. By encrypting the key initial index values of the context model in CABAC entropy coding, the proposed encryption scheme achieves low complexity and could meet the real-time requirement of an unmanned aerial vehicle based video capture system. Thirdly, an embedded secure video processing system using DSP and ARM is designed, and the presented encryption scheme is implemented. Finally, the experimental results show that the encryption scheme can get a tradeoff between the efficiency and security.