Electromagnetic Information Interception and Reproduction
The second chapter describes the electromagnetic information interception and data reconstruction, information reproduction model, in which the source refers to the leakage source and the sink refers to interception equipment. The electromagnetic informat
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Electromagnetic Information Interception and Reproduction
The second chapter describes the electromagnetic information interception and data reconstruction, information reproduction model, in which the source refers to the leakage source and the sink refers to interception equipment. The electromagnetic information might be leaked when information equipment processes the data, and the leaked information might be intercepted and reproduced, thus information security will be threatened. The leaked electromagnetic signal that is intercepted from the information equipment could be reconstructed to reproduce the original information, which includes signal interception, data reconstruction, and information reproduction.
3.1 Electromagnetic Information Interception Intercepting the leaked electromagnetic signal requires using corresponding devices and through some certain means. The intercepted data is stored and processed to facilitate the data reconstruction and information reproduction.
3.1.1 Interception Aim and Methods The interception of electromagnetic information refers to receiving the electromagnetic signal radiated through air or transmission pipeline from the target information equipment by the specific device within a certain distance [14], which is shown in Fig. 3.1. The purpose of interception is to obtain the leaked electromagnetic information, in order to reconstruct the data and reproduce the information. Interception is similar to TEMPST testing in terms of the devices used and the applicable means, but their purpose is very different. The purpose of interception is to obtain the leaked electromagnetic information from the information equipment as complete as possible, in order to improve the quality of information reproduction. © National Defense Industry Press, Beijing and Springer Nature Singapore Pte Ltd. 2019 T. Liu and Y. Li, Electromagnetic Information Leakage and Countermeasure Technique, https://doi.org/10.1007/978-981-10-4352-9_3
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3 Electromagnetic Information Interception and Reproduction
Fig. 3.1 Intercepted schematic diagram
While, the purpose of testing is to detect the electromagnetic radiation intensity of the information equipment, and determine whether it conforms to the electromagnetic information safety standard or not. In brief, the interception concerns about the full information of the target object, and the testing aims at the hazard detection of the target equipment. The process of interception and reproduction is mainly related to electromagnetic signal acquisition, instantaneous recording, signal processing, static and dynamic database, and data mining technologies, which covers materials, electronics, antenna, test, mathematics, computer, artificial intelligence, and other professional fields, therefore, interception and reproduction is a multidisciplinary integrated technology. Interception provides a data source for reconstruction and reproduction. Interception technology is very important, which directly affects the possibility and effect of the reproduction.
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