| Project/Area Number |
20300005
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Fundamental theory of informatics
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| Research Institution | Kyushu University |
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Principal Investigator |
SAKURAI Kouichi Kyushu University, システム情報科学研究院, 教授 (60264066)
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| Co-Investigator(Kenkyū-buntansha) |
HORI Yoshiaki 九州大学, システム情報科学研究院, 准教授 (90264126)
TAKAHASHI Kenichi 鳥取大学, 大学院・工学研究科情報エレクトロニクス, 准教授 (30399670)
HASHIMOTO Yasufumi 財団法人九州先端科学技術研究所, 研究員 (30452733)
NISHIDE Takashi 九州大学, システム情報科学研究院, 助教 (70570985)
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| Co-Investigator(Renkei-kenkyūsha) |
ARARAGI Tadashi NTT, コミュニケーション科学基礎研究所, 主任研究員 (00396136)
SU Chunhua 九州大学, 大学院・システム科学府, 博士(学振特別研究員)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2010: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2008: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
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| Keywords | 暗号 / データマイニング / プライバシー保護 / 安全性検証 / 普遍安全性 / プライバシ |
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| Research Abstract |
In the process of data mining, there exists a problem about privacy breach because we need to deal with health data, personal preferences, etc. There are approaches to privacy preserving data mining in which random noisy data are added to the original data or computation and communication are performed without breaking the structure of original data. In this research, we designed cryptographic protocols whose security can be proved in a theoretical way. For the security model, we use Universal Composability (UC) in which combining several protocols can be done securely. We designed protocols such as oblivious transfer for data mining whose security was proved only in the previous security model, and proved the security in the notion of UC.
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