Noise-Jamming Effect as a Countermeasure Against TEMPEST During High-Speed Signaling

Song, Tae-Lim; Jeong, Yi-Ru; Jo, Han-Shin; Yook, Jong-Gwan

doi:10.1109/temc.2015.2466593

Cited by 13 publications

(4 citation statements)

References 13 publications

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“…15(d)(ii), if the amplitude of the Echo radiated from the device is small, it is difficult for the attacker to reconstruct the information because of background noise. Therefore, methods to make it more difficult to obtain the Echo using conventional EM information leakage countermeasure methods, such as shielding enclosures, buildings, and connecting lines [32], [33], zoning [32], [34], [35], and jamming using noise [36], may be applied to Echo TEMPEST.…”

Section: A Methods That Make It Difficult To Obtain the Echomentioning

confidence: 99%

Echo TEMPEST: EM Information Leakage Induced by IEMI for Electronic Devices

Kaji

Fujimoto

Kinugawa

et al. 2023

IEEE Trans. Electromagn. Compat.

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Electromagnetic (EM) information leakage encourages attacks, wherein the attackers passively capture and analyze EM waves that are unintentionally generated by devices. Generally, devices with weak EM emission intensities are not targeted. However, even these devices would be subject to attacks if it becomes possible to actively sense the electrical changes that occur within them when information is processed. This article demonstrates the feasibility of the information leakage threat induced by the active sensing of input impedance changes in the input/output (I/O) circuit of an integrated circuit (IC). Specifically, the changes in the input impedance when information was transmitted from the IC, were measured by irradiating the EM waves from outside the target device. This article labels the threat as Echo TEMPEST. The experiment validated Echo TEMPEST with an evaluation board that simulated the I/O circuit of the IC, UART modules, and USB keyboards. It was also demonstrated that attackers could control the distance (obtained information from the target device), depending on the intensity of the irradiated EM waves. Furthermore, we discussed countermeasure methods focusing on the conditions for executing Echo TEMPEST.

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Section: A Methods That Make It Difficult To Obtain the Echomentioning

confidence: 99%

Echo TEMPEST: EM Information Leakage Induced by IEMI for Electronic Devices

Kaji

Fujimoto

Kinugawa

et al. 2023

IEEE Trans. Electromagn. Compat.

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“…Nowadays, many scholars have begun to actively research and develop TEMPEST [2][3][4][5][6], especially TEMPEST protection. Many methods of TEM-PEST protection have been achieved, for example, low-radiation equipment [7][8][9][10], noise interference [11], electromagnetic shielding [12][13][14], filtering technology [15], and optical fiber technology [16,17]. Low-radiation equipment, noise interference, electromagnetic shielding, and optical fiber technology mainly prevent electromagnetic information leakage caused by electromagnetic radiation.…”

Section: Introductionmentioning

confidence: 99%

Microstrip Bandstop Filter for Preventing Conduction Electromagnetic Information Leakage of High-Power Transmission Line

Han

Zhou

et al. 2022

International Journal of Antennas and Propagation

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The research of transient electromagnetic pulse emission monitoring technology (TEMPEST) protection is essential. Based on microstrip bandstop filter (MSBSF), a method to prevent electromagnetic information leakage of high-power transmission lines is proposed in this paper. The MSBSF with a high insertion loss and carrying large current in the frequency of 2.40–2.49 GHz is designed, fabricated, and experimentally measured. The fabricated MSBSF with the insertion loss of 38 dB at 2.41–2.49 GHz can carry a current greater than 10A and withstand a voltage of 1.7 kV. Compared with the traditional electromagnetic interference (EMI) filter, the MSBSF has the advantages of preventing conducted electromagnetic information leakage in the high-frequency bands, carrying greater current subject to higher voltage, and possessing lighter weight. The MSBSF may be used to prevent the leakage of high-frequency electromagnetic information of high-power transmission lines.

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“…This can be a potential information security threat, especially because information can then be stolen remotely from a distance with no trace [ 3 , 4 ] . In most cases, the net security and the information storage security are emphasized while the information security caused by the non‐contacting electromagnetic radiation is often neglected [ 5 , 6 ] .…”

Section: Introductionmentioning

confidence: 99%

Method for Evaluating Digital Video Electromagnetic Information Leakage from Video Cable

Wang

Qiu

Tian

2021

Chinese J of Electronics

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Electromagnetic emissions from electrical information equipment may contain useful information and lead to information leakage. In order to detect the electromagnetic information leakage of digital video cable, a rapid testing method for computer video information leakage detection without reconstructing the displayed image is proposed. In this method, the electromagnetic radiation spectrum of typical image transmitted by HDMI cable is simulated. Then the electromagnetic radiation spectrum of the computer when transmitting the same image as the typical image is obtained by conduction and radiation EMC test methods. Finally, the correlation between the spectrum of simulation and the test spectrum is analyzed, and the correlation coefficient is used to judge whether the computer has produced the electromagnetic leakage of video information. The analysis and test results show that when the correlation coefficient is greater than 0.5, the electromagnetic leakage of computer video information can be judged.

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Noise-Jamming Effect as a Countermeasure Against TEMPEST During High-Speed Signaling

Cited by 13 publications

References 13 publications

Echo TEMPEST: EM Information Leakage Induced by IEMI for Electronic Devices

Echo TEMPEST: EM Information Leakage Induced by IEMI for Electronic Devices

Microstrip Bandstop Filter for Preventing Conduction Electromagnetic Information Leakage of High-Power Transmission Line

Method for Evaluating Digital Video Electromagnetic Information Leakage from Video Cable

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