A practical key management scheme using the frame-based features for layered access control of H.264/SVC

This paper proposes a practical key management scheme using the frame-based feature in order to efficiently manage multi-keys used for layered access control of H.264/SVC. The efficiency of the proposed scheme is summarized in the following three points. 1) It offers implicit authentication in video content encryption/decryption. 2) It provides the security in key transmission through the network, and 3) has the robustness against brute-force attack as using all different NAL unit keys in the video sequence.