Format-compliant entropy coding encryption algorithms for wireless video system

被引：0

作者：

Wang Li-feng ^{[1
]}

Wang Wen-dong ^{[1
]}

Ma Jian ^{[2
]}

Wang Kong-qiao ^{[2
]}

Xiao Chen ^{[3
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100088, Peoples R China

[2] Nokia Res Ctr, Beijing, Peoples R China

[3] Bei Hang Univ, Sch Comp Sci & Technol, Beijing, Peoples R China

来源：

2008 4TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-31 | 2008年

关键词：

video encryption; media security; entropy coding; Exponential-Golomb; CALVC; H.264;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Wireless video security becomes an important challenge for commercial applications. Two efficient encryption algorithms for video system, Signed Integer Exponential-Golomb Coded (SE) Encryption Algorithm and Context-Adaptive Variable Length Coding (CAVLC) Encryption Algorithm are proposed during the process of the entropy coding. In order to maintain the format compliance, the signs of motion vector difference (MVD), delta quantity parameter (QP) In SE are confused, as well as the levels of nonzero transform coefficients in CAVLC are encrypted by stream cipher. Experimental results demonstrate that the proposed algorithms that encrypt much less important data can achieve high security and low complexity, while still maintain compliance to the compression format. The proposed algorithms are especially suitable for wireless multimedia application.

引用

页码：3275 / +

页数：2