low complexity controllable scrambler/descrambler for h.264/avc in compressed domain
In this paper, we present a novel algorithm that scrambles and descrambles a H.264/AVC video element stream. In particular, the proposed method selectively exploits the unique characteristics of H.264/AVC video coding standard. Specifically, we manipulate DCT coefficients and CABAC initialization table, to secure the visual content of H.264/AVC video. This new algorithm is light-weight and able to support the level of security (scrambling strength) as well. Extensive experimental results indicate that the proposed algorithm is highly effective and feasible, yet computationally very efficient.
scramble h.264 avc cabac security encryption