Electromagnetic information leakage detection method based on time domain, terminal equipment and storage medium

Abstract

The invention relates to an electromagnetic information leakage detection method based on a time domain, terminal equipment and a storage medium. The electromagnetic information leakage detection method comprises the steps: S1, collecting a to-be-detected electromagnetic signal, and converting the to-be-detected electromagnetic signal into a one-dimensional time domain signal; S2, constructing andtraining a leakage feature classification model, wherein the leakage feature classification model comprises two convolution layers, two pooling layers and a full connection layer; S3, inputting the one-dimensional time domain signal into the trained model to obtain a feature vector and a classification score of the electromagnetic information leakage feature; S4, calculating a hotspot map based on gradient weighted mapping according to the feature vectors and the classification scores; and S5, filtering the to-be-detected electromagnetic signal by taking the hotspot map as a filter to obtainthe position of the to-be-detected electromagnetic information leakage characteristic in the electromagnetic signal so as to realize positioning and detection of the electromagnetic information leakage characteristic. According to the electromagnetic information leakage detection method, the information leakage characteristic key area in the time domain electromagnetic signal is positioned and extracted under the condition of not realizing definition of the information characteristics.

Description

technical field [0001] The invention relates to the field of electromagnetic information leakage detection, in particular to a time-domain-based electromagnetic information leakage detection method, terminal equipment and a storage medium. Background technique [0002] Electromagnetic leakage signals are electromagnetic radiation signals generated by current changes in the process of information input, processing, and output when electronic information equipment, including computers and related auxiliary equipment, is working. Not only external devices such as display screens, keyboards, and mice, but also internal devices such as chips and disks will also radiate electromagnetic signals carrying information during work. These electromagnetic signals carrying information may be reproduced by receiving and restoring technology, which is unacceptable for the leakage of some confidential information. Therefore, electromagnetic information leakage poses a huge threat to informa...

AI Technical Summary

Problems solved by technology

The results of electromagnetic information leakage detection can provide a basis for the electromagnetic information security protection of electronic equipment. Traditional protection methods such as low-radiation equipment, shielding reinforcement technology, and noise interference technology cannot accurately locate the main electromagnetic information leakage in electromagnetic signals. characteristics, it can only protect the whole without distinction to reduce the overall electromagnetic information radiation intensity, there is a certain blindness in the protection method, and at the same time the cost of protection is relatively high

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