Scalable protection and access control in full scalable video coding

Abstract

We propose an encryption algorithm to protect scalable video coding (SVC) bitstream and a method for conditional access control to consume the encrypted SVC bitstream. To design an encryption algorithm, we analyzed the encryption requirements to support scalability characteristics in the SVC contents and proposed an effective encryption method developed in the network abstraction layer (NAL). In addition, conditional access control scheme and key management scheme are proposed to consume the SVC bitstream protected with proposed method. Experiments were performed to verify the proposed method and experimental results showed that proposed encryption algorithms are satisfied with SVC encryption requirements and proposed access control could be efficient to consume the encrypted SVC bitstream