2022 Fiscal Year Final Research Report

Advancing Device Design Techniques to Obfuscate the Measurement of Electromagnetic Information Leakage

Research Project

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Project/Area Number	19H01104
Research Category	Grant-in-Aid for Scientific Research (A)
Allocation Type	Single-year Grants
Section	一般
Review Section	Medium-sized Section 60:Information science, computer engineering, and related fields
Research Institution	Nara Institute of Science and Technology
Principal Investigator	Hayashi Yuichi 奈良先端科学技術大学院大学, 先端科学技術研究科, 教授 (60551918)
Co-Investigator(Kenkyū-buntansha)	藤本大介奈良先端科学技術大学院大学, 先端科学技術研究科, 助教 (60732336) Kim YoungWoo 奈良先端科学技術大学院大学, 先端科学技術研究科, 助教 (30862403)
Project Period (FY)	2019-04-01 – 2023-03-31
Keywords	電磁情報セキュリティ / サイドチャネル攻撃 / 環境電磁工学 / 暗号・認証
Outline of Final Research Achievements	This research developed evaluation techniques, mechanism clarification, and countermeasure techniques to make measuring electromagnetic waves that cause information leakage difficult. First, (1) we developed a rapid leakage evaluation technique that does not require complete information restoration based on a leakage model, and (2) we clarified the leakage mechanism by high-resolution visualization of the propagation of leaking electromagnetic fields from devices in the time domain. Following this mechanism-based approach, (3) a simulation model was constructed to predict information leakage during equipment design. Furthermore, (4) a design methodology was given that makes the measurement of leakage information independent of the information processed at upper layers more difficult, again based on the identified mechanism.
Free Research Field	ハードウェアセキュリティ
Academic Significance and Societal Importance of the Research Achievements	本研究では、漏えい電磁波による情報漏えいの脅威を「漏えい電磁情報の計測」と「計測された情報の解析」の2つのフェーズからなる攻撃と捉え、前段の「計測」に着目し、これを困難化することで、後段の「解析」も無効化する新たなアプローチを用いた対策手法の開拓に学術的意義な意義がある。開発した対策手法は上位レイヤのプロトコルやアプリケーションに依存しないため、機器設計時に多種多様な入出力機器に統一的に適用できることから、その社会的意義は少なくない。