SVC BASED ENCRYPTION METHOD FOR PRIVACY PROTECTION IN SURVEILANCE VIDEO

Abstract

 A multimedia video surveillance system main aim is to offer security of people who appear in the surveillance video. However, due to the nature of video surveillance, video will be stored in the server as original format of the video which is not safe. However, many cryptographic algorithm and techniques now applying in video surveillance to encrypt the video, e.g., AES and DES, but that are not suitable and efficeient for surveillance videos to encrypt the video because size of the video is large. In our method we  introduce SVC based video compression technique and light weighted encryption technique in the existing video surveillance system. In our method, we propose bitstream-oriented layered cellular automata(LCA) encryption scheme for SVC. Using our approach, the compressed video organized as  8-layer cellular automata (CA) then it will converted into a binary block. The simple 8X8 layer  evolution technique and layered shift transformation based on the hierarchy generated key make the particular video encryption efficiently. In order to offer more security, as well as achieving light weight requirement, we use hierarchical key management technique. It generate random key for shift transformation. Finally the encrypted video stored in the cloud. The experiment analysis and final outputs indicate that the proposed model achieves a high-security level, and light weight requirements for video surveilance.