Title :
Information Leakage via Electromagnetic Emanation and Effectiveness of Averaging Technique
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Tokyo
Abstract :
It is well known that there is relationship between electromagnetic emanation and processing information in IT devices such as personal computers and smart cards. In this paper, we show how to estimate amount of information that is leaked as electromagnetic emanation and effectiveness of averaging technique. We assume the area between the IT device and the receiver is a communication channel, and we define the amount of information leakage via electromagnetic emanations by its channel capacity. And we also estimate the maximum amount of information which eavesdropper can get via electromagnetic emanation. By using these estimations, we derive the necessary amount of data for effective averaging technique.
Keywords :
channel capacity; cryptography; radiofrequency interference; telecommunication security; wireless channels; IT device; averaging technique; channel capacity; communication channel; electromagnetic emanation; information leakage; Channel capacity; Electromagnetic devices; Frequency; Image reconstruction; Information security; Microcomputers; Noise level; Portable computers; Spectral analysis; Upper bound; Channel capacity; Tempest; averaging technique; electromagnetic emanation;
Conference_Titel :
Information Security and Assurance, 2008. ISA 2008. International Conference on
Conference_Location :
Busan
Print_ISBN :
978-0-7695-3126-7
DOI :
10.1109/ISA.2008.42
