A study on an Effective Evaluation Method for EM Information Leakage without Reconstructing Screen
A study on an Effective Evaluation Method for EM Information Leakage without Reconstructing Screen
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一种无需重构屏幕的电磁信息泄露有效评估方法研究
DOI：
10.1109/emceurope.2019.8872035
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
H. Sone
中科院分区：
文献类型：
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作者：
Ryota Birukawa;Y. Hayashi;T. Mizuki;H. Sone
本文提出了一种无需屏幕图像重建的显示器电磁辐射评估方法。我们的方法侧重于低压差分信号（LVDS），这是广泛用于笔记本电脑和平板电脑。我们通过改变显示颜色来评估EM泄漏。我们所提出的方法的概念是利用LVDS通过显示特定的图像来控制在泄漏频率的EM发射。通过检测作为可听频率范围信号的受控发射，可以估计泄漏频率。我们的实验证实，在预期的可听频率范围内的信号与所提出的方法的电磁辐射是大约6-13分贝大于与传统的方法。我们证明，我们的方法可以估计EM泄漏，即使在高背景噪声。
This paper presents a method for evaluating electromagnetic (EM) emanation from displays without screen image reconstruction. Our method focuses on low voltage differential signaling (LVDS), which is widely used in laptop PCs and tablets. We evaluate the EM leakage by changing the display color. The concept of our proposed method is to utilize LVDS by displaying a specific image to control the EM emanation at the leakage frequency. By detecting the controlled emanation as an audible frequency range signal, the leakage frequency can be estimated. We experimentally confirmed that the EM emanation at the intended audible frequency range signal with the proposed method was approximately 6–13 dB greater than that with the conventional method. We demonstrated that our method can estimate EM leakage even with high background noise.