| Project/Area Number |
26870392
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Communication/Network engineering
Information security
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| Research Institution | Okayama University |
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Principal Investigator |
Iokibe Kengo 岡山大学, 自然科学研究科, 助教 (10420499)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 情報セキュリティ / 暗号・セキュリティ / 耐タンパー技術 / AES暗号 / 等価回路モデル |
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| Outline of Final Research Achievements |
Aiming for developing a method to predict security of cryptographic devices against side-channel attacks that is a new cryptanalytic method using physical behavior of the devices, we firstly confirmed that strength of side-channel information leakage can be simulated with an equivalent circuit model of an integrated circuit (IC) implementing a cryptographic circuit. Next, we indicated that the behavior of the cryptographic IC leaking the side-channel information can be seen in the equivalent circuit model. This can help develop a new and more efficient countermeasures to the attacks. Finally, we identified signal-to-noise ratios of side-channel traces as an information leakage potential to be used in prediction of side-channel attack security.
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