Eavesdropping the display image from conducted emission on network cable of a PC

doi:10.1016/S1005-8885(13)60053-9

中国邮电高校学报(英文) ›› 2013, Vol. 20 ›› Issue (3): 78-84.doi: 10.1016/S1005-8885(13)60053-9

• Artificial Intelligence • 上一篇下一篇

Eavesdropping the display image from conducted emission on network cable of a PC

杜玉雷¹,张金玲²

School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:2012-08-21 修回日期:2013-04-02 出版日期:2013-06-30 发布日期:2013-06-26
通讯作者: 杜玉雷 E-mail:dylbupt@gmail.com
基金资助:
This work was supported by the National Natural Science Foundation of China (61072136, 61171051).

Eavesdropping the display image from conducted emission on network cable of a PC

School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2012-08-21 Revised:2013-04-02 Online:2013-06-30 Published:2013-06-26
Contact: Yu-Lei DU E-mail:dylbupt@gmail.com
Supported by:
This work was supported by the National Natural Science Foundation of China (61072136, 61171051).

摘要/Abstract

摘要：

The display image of a PC can be reconstructed by using the conducted emission on the PC’s network cable. The relevant signals which be used to reconstruct the original image are coupling from the radiation of the switching of red, green, blue (RGB) signals in PC. These pertinent signals are partly contained in the frequency region higher than 30 MHz in the conducted emission. From these findings, the near-field coupling principle from PC to the network cable is analyzed firstly. And then, a multi-conductor transmission model for the RGB signals which transmit in the network cable is proposed. In addition, the maximum safe distance is estimated by using this model. In order to check the validity of the estimating distance, the eavesdropping experiment is carried out to reconstruct the original display image. The results demonstrate that the blurred display image can be retrieved at the place of 29.5 m.

关键词:

electromagnetic secure, conducted emission, unshielded twisted pair cables, eavesdropping, multi-conductor transmission model

Abstract:

Key words:

electromagnetic secure, conducted emission, unshielded twisted pair cables, eavesdropping, multi-conductor transmission model

中图分类号:

TN971

DU Yu-lei , LU Ying-hua, ZHANG Jin-ling. Eavesdropping the display image from conducted emission on network cable of a PC[J]. Acta Metallurgica Sinica(English letters), 2013, 20(3): 78-84.

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Eavesdropping the display image from conducted emission on network cable of a PC

Eavesdropping the display image from conducted emission on network cable of a PC

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