| Project/Area Number |
23656257
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Communication/Network engineering
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
HANAOKA Goichiro 独立行政法人産業技術総合研究所, セキュアシステム研究部門, 研究グループ長 (30415731)
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| Co-Investigator(Kenkyū-buntansha) |
AFFELDT Reynald 独立行政法人産業技術総合研究所, セキュアシステム研究部門, 主任研究員 (40415641)
ATTRAPADUNG Nuttapong 独立行政法人産業技術総合研究所, セキュアシステム研究部門, 主任研究員 (40515300)
NUIDA Koji 独立行政法人産業技術総合研究所, セキュアシステム研究部門, 主任研究員 (20435762)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 暗号理論 / 公開鍵暗号 / ゼロ知識証明 / 証明可能安全性 / 選択暗号文攻撃 / 公開鍵暗号基盤 |
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| Research Abstract |
The main motivation of this work is to provide a technology which yields confidentiality of communication but prevents those by malicious users, e.g. terrorists. In this work, as a candidate of such a technology, we study public key encryption with restricted plaintext space. Specifically, we construct a concrete scheme, evaluate its security, and implement it. We also study its fundamental theory. These results were preseted in international conferences and journals.
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