| Project/Area Number |
25730083
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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 |
Information security
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| Research Institution | Japan Advanced Institute of Science and Technology |
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Principal Investigator |
Omote Kazumasa 北陸先端科学技術大学院大学, 情報科学研究科, 准教授 (50417507)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | データ認証 / 準同型性 / 認証子 / ネットワーク符号 / セキュアクラウドストレージ / セキュアクラウド / クラウド |
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| Outline of Final Research Achievements |
In this research, we proposed the data authentication schemes which enabled data repair securely and efficiently by using network coding and homomorphic authentication code in untrusted storages. In these schemes, we constructed a new homomorphic authentication code which was able to deal with the different private keys for plural users, and we also achieved "direct repair" function of data which enables data repair by healthy servers without data owner. Furthermore, by using our proposed homomorphic authentication code, we constructed a practical secure cloud system which satisfied both direct repair and dynamic operations of data and we also constructed a fair trade system of data.
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