A video encryption in HEVC entropy coding based on magic square

Bowen XU; Xiaodong WANG; Lei GUO; Jian WANG

doi:10.11959/j.issn.1000-0801.2018015

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A video encryption in HEVC entropy coding based on magic square

Research and development | 更新时间：2024-06-05

- A video encryption in HEVC entropy coding based on magic square
- Telecommunications Science Vol. 34, Issue 3, Pages: 95-104(2018)
- 作者机构：
- 作者简介：
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- DOI：10.11959/j.issn.1000-0801.2018015
  CLC： TP391
- Published Online：2018-03，
  
  Published：20 March 2018
- 稿件说明：
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Bowen XU, Xiaodong WANG, Lei GUO, et al. A video encryption in HEVC entropy coding based on magic square[J]. Telecommunications science, 2018, 34(3): 95-104.
DOI：

Bowen XU, Xiaodong WANG, Lei GUO, et al. A video encryption in HEVC entropy coding based on magic square[J]. Telecommunications science, 2018, 34(3): 95-104. DOI： 10.11959/j.issn.1000-0801.2018015.

摘要

针对多媒体信息安全问题，基于高效视频编码标准（HEVC/H.265）的熵编码模块，结合幻方变换矩阵，设计了一种具有实时性和高效性的面向高清视频流的加密算法。该算法有效利用变换系数的分布稀疏性，置乱变换块（TB）的系数组（CG），并对 CG 熵编码的语法元素进行了选择性加密。实验结果表明，本文的加密方案具有高安全性，保证格式兼容性并仅对编码比特率造成很小的影响，满足视频加密保护的需求。

Abstract

In view of the multimedia information security

based on the entropy module on high efficiency video coding (HEVC/H.265)

combined with the magic square

a real time and high efficiency encryption technique for high-definition video streaming was proposed.The algorithm which had an effective use of transform coefficient sparsity enabled coefficient group (CG) of transform block (TB) scrambling

and used a selective encryption on syntax elements in CG's entropy.The experiments prove that the investigated scheme has high security

which can guarantee the standard compliance and the demand of video encryption while having a low impact on encoding-rate performance.

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references

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