| 一种适合于H.264实时视频传输的新型加密方案 |
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| 引用本文： | 包先雨,蒋建国,李援. 一种适合于H.264实时视频传输的新型加密方案[J]. 电子学报, 2006, 34(11): 2099-2102 |
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| 作者姓名： | 包先雨 蒋建国 李援 |
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| 作者单位： | 合肥工业大学计算机与信息学院,安徽合肥,230009;合肥工业大学计算机与信息学院,安徽合肥,230009;合肥工业大学计算机与信息学院,安徽合肥,230009 |
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| 基金项目： | 国家自然科学基金，安徽省二期科技攻关项目 |
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| 摘 要： | H.264是由ITU-T和ISO/IEC联合制定的最新视频编码标准,其安全加密技术正成为研究的热点.文章通过研究适合于H.264加密的侯选域,提出了一种加密与压缩相结合的新型视频加密方案,该方案包括崭新的CAVLC(基于上下文的自适应变长编码)与QTC(量化变换系数)加密同步,预测模式置乱和运动矢量置乱.理论分析和实验结果表明,此方案速度快,安全性高,传输误码鲁棒性较强,并对压缩比影响小.
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| 关 键 词： | H.264 CAVLC与加密同步 视频加密 置乱 |
| 文章编号： | 0372-2112（2006）11-2099-04 |
| 收稿时间： | 2005-11-22 |
| 修稿时间： | 2005-11-222006-07-10 |
A New Encryption Scheme for H.264 Real-Time Video Transmission |
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| BAO Xian-yu,JIANG Jian-guo,LI Yuan. A New Encryption Scheme for H.264 Real-Time Video Transmission[J]. Acta Electronica Sinica, 2006, 34(11): 2099-2102 |
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| Authors: | BAO Xian-yu JIANG Jian-guo LI Yuan |
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| Affiliation: | School of Computer & Information,Hefei University of Technology,Hefei,Anhui 230009,China |
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| Abstract: | H.264 is the latest video coding standard developed by ITU-T and ISO/IEC,and its security is becoming a research focus.Several candidate domains are investigated to apply encryption for H.264 and,a new video encryption scheme combining encryption with compression is proposed in this paper.It includes novel simultaneous CAVLC(Context-based Adaptive Variable-Length Coding)and QTC(quantized transform coefficients)encryption and prediction mode,motion vectors scrambling.Theoretical analysis and experimental results show that the scheme is fast,secure,and robust to transmission errors,moreover,it has very limited adverse impact on the compact ratio. |
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| Keywords: | H.264 |
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