数字接口视频传输线的电磁泄漏特性

doi:10.3969/j.issn.1001-2400.2017.05.014

西安电子科技大学学报

数字接口视频传输线的电磁泄漏特性

王森;邱扬;田锦;许清琳

(西安电子科技大学机电工程学院，陕西西安 710071)

收稿日期:2016-11-06 出版日期:2017-10-20 发布日期:2017-11-29
作者简介:王森(1989-)，男，西安电子科技大学博士研究生，E-mail: wangsen3356@126.com
基金资助:
国家973重点基础研究发展规划资助项目(2015CB857103)

Electromagnetic leakage characteristics of the digital video cable

WANG Sen;QIU Yang;TIN Jin;XU Qinglin

(School of Mechano-electronic Engineering, Xidian Univ., Xi'an 710071, China)

Received:2016-11-06 Online:2017-10-20 Published:2017-11-29

摘要/Abstract

摘要：

针对计算机的电磁辐射可能会包含视频信息从而造成信息泄漏的问题，分析了计算机数字视频接口的视频信息传输途径，建立了视频信息串行传输和并行传输路径相应的时/频域模型，获得串行传输和并行传输在传输不同视频信号时的辐射泄漏特征. 结合视频信息截获与复现的原理，发现了串行传输灰度图像、并行传输黑白图像表现出假并真串而容易被截获的结论，并通过测试加以验证．

关键词: 信息安全, 视频信息, 电磁泄漏

Abstract:

The information leakage caused by electromagnetic wave emitted by computer cables which contains video information is studied. The digital video interface of computer video information transmission is analyzed. The time and frequency domain model corresponding to serial transmission and parallel transmission of video information are built and then the leakage characteristics of different video signals which are transmitted in the serial and parallel way are obtained. According to the principle of video information interception and reconstruction, we can draw a conclusion that it is easy to intercept when the gray image is transmitted in a serial way because it shows the characteristic of “false parallel and real serial”. The experimental result agrees with it very well.

Key words: information security, video information, electromagnetic leakage

王森;邱扬;田锦;许清琳. 数字接口视频传输线的电磁泄漏特性[J]. 西安电子科技大学学报, 2017, 44(5): 81-86.

WANG Sen;QIU Yang;TIN Jin;XU Qinglin. Electromagnetic leakage characteristics of the digital video cable[J]. Journal of Xidian University, 2017, 44(5): 81-86.

参考文献

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数字接口视频传输线的电磁泄漏特性

Electromagnetic leakage characteristics of the digital video cable

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