Visible to the public Estimating the eavesdropping distance for radiated emission and conducted emission from information technology equipment

TitleEstimating the eavesdropping distance for radiated emission and conducted emission from information technology equipment
Publication TypeConference Paper
Year of Publication2017
AuthorsDu, Y., Zhang, H.
Conference Name2017 IEEE 5th International Symposium on Electromagnetic Compatibility (EMC-Beijing)
KeywordsCollaboration, composability, conducted emission, cryptology, Dipole antennas, eavesdropping distance estimation, emission security, Human Behavior, human factor, Metrics, Noise measurement, policy, Policy-Governed Secure Collaboration, Power cables, pubcrawl, radiated emission, receiving antennas, resilience, Resiliency, Scalability, Signal to noise ratio, tempest
Abstract

The display image on the visual display unit (VDU) can be retrieved from the radiated and conducted emission at some distance with no trace. In this paper, the maximum eavesdropping distance for the unintentional radiation and conduction electromagnetic (EM) signals which contain information has been estimated in theory by considering some realistic parameters. Firstly, the maximum eavesdropping distance for the unintentional EM radiation is estimated based on the reception capacity of a log-periodic antenna which connects to a receiver, the experiment data, the attenuation in free-space and the additional attenuation in the propagation path. And then, based on a multi-conductor transmission model and some experiment results, the maximum eavesdropping distance for the conducted emission is theoretically derived. The estimating results demonstrated that the ITE equipment may also exist threat of the information leakage even if it has met the current EMC requirements.

URLhttp://ieeexplore.ieee.org/document/8260386/
DOI10.1109/EMC-B.2017.8260386
Citation Keydu_estimating_2017