电信科学 ›› 2010, Vol. 26 ›› Issue (7): 80-83.doi: 10.3969/j.issn.1000-0801.2010.07.021

• 专题:IPv6技术与应用 • 上一篇    下一篇

一种基于H.264 CABAC的视频加密方案

李晓举1,忽海娜2,刘丽2   

  1. 1 郑州航空工业管理学院 郑州 450015
    2 许昌学院网络管理中心 许昌 461000
  • 出版日期:2010-07-15 发布日期:2017-06-20
  • 基金资助:
    航空科学基金资助项目;河南省科技厅基础与前沿技术研究计划基金资助项目;河南省高等学校青年骨干教师资助计划项目;河南省教育厅科技攻关项目

A Video Encrypting Scheme Based on H.264 CABAC

Xiaoju Li1,Haina Hu2,Li Liu2   

  1. 1 Zhengzhou Institute of Aeronautical Industry Management,Zhengzhou 450015,China
    2 Network Management Center,Xuchang University,Xuchang 461000,China
  • Online:2010-07-15 Published:2017-06-20

摘要:

基于块的数字视频编码一般包括运动估计、残差块变换和熵编码三个阶段。针对传统的视频加密方案是对第二阶段中的残差变换系数进行的加密,提出了一种基于H.264 CABAC熵编码的视频加密方案。该方案充分利用了流密码加密简单、运算快的优点,将加密过程置于视频编码的第三个阶段。并利用可灵活配置的加密模块和密文反馈模式,增强加密的安全性。理论分析和实验结果表明,提出的算法具有计算简单、安全高效、易于实现、不改变视频格式和压缩效率的优点。

关键词: 视频加密, H.264, 熵编码, CABAC

Abstract:

Block-based digital video encoding generally include motion estimation, residual transformation and entropy encoding. Considering the traditional video encrypting schemes encrypt the coefficients of residual transformation, a new video encrypting scheme based on H.264 CABAC entropy coding is proposed in this paper. The proposed scheme makes the best of the advantage of stream cipher, and the process of encrypting is occurred in entropy encoding. Furthermore, CABAC encryption scheme uses flexible encryption modules and cipher feedback mode to increase the security. Theory analysis and experiment show that the proposed scheme has some advantages, such as low complex, high security, easy to implement and unchange the video format and compression efficiency.

Key words: video encrypting, H.264, entropy coding, CABAC

No Suggested Reading articles found!