TY - JOUR AU - Lin, Yih-Chuan AU - Wang, Wei-Siang AU - Chang, Yao-Tang PY - 2016/08/01 Y2 - 2024/03/29 TI - Flexible Macroblock Ordering Scramble Encryption Techniques for H.264/AVC Videos JF - Proceedings of Engineering and Technology Innovation JA - Proc. eng. technol. innov. VL - 3 IS - 0 SE - Articles DO - UR - https://ojs.imeti.org/index.php/PETI/article/view/236 SP - 19-21 AB - <p class="Context"><span lang="EN-US">In this paper, </span><span lang="EN-US">a</span><span lang="EN-US"> new </span><span lang="EN-US">video encryption </span><span lang="EN-US">method</span><span lang="EN-US"> through</span><span lang="EN-US"> scrambling the </span><span lang="EN-US">compressed videos </span><span lang="EN-US">is presented</span><span lang="EN-US">, which is targeted for</span><span lang="EN-US"> H.264/AVC video </span><span lang="EN-US">encryption</span><span lang="EN-US">in order to</span><span lang="EN-US"> provid</span><span lang="EN-US">e</span><span lang="EN-US"> the greatest </span><span lang="EN-US">content </span><span lang="EN-US">protection </span><span lang="EN-US">in the compressed domain.</span><span lang="EN-US">The proposed algorithm uses a <em>macroblock switching</em> mechanism to scramble the video content</span><span lang="EN-US">for the compressed video sequences. Only the <em>instantaneous decoded reference</em> (IDR) pictures are scrambled to take the advantage of drift error propagation from all the inter-prediction frames. The proposed encryption technique is designed to perform after the encoding process on the compressed bitstream such that bitstream is modified by the parser directly. </span><span lang="EN-US">Finally</span><span lang="EN-US">,</span><span lang="EN-US">t</span><span lang="EN-US">he scrambled video is still format</span><span lang="EN-US">-</span><span lang="EN-US">compliant to a general H.264/AVC decoder and </span><span lang="EN-US">can </span><span lang="EN-US">only </span><span lang="EN-US">be </span><span lang="EN-US">recovered by </span><span lang="EN-US">the </span><span lang="EN-US">authorized user that owns private key. Based on experimental results, the scene in the scrambled video can be effectively protected by the proposed scheme with low computational complexity and negligible</span><span lang="EN-US">bitrate overhead.</span></p> ER -