2010 Fiscal Year Final Research Report
Security mechanism for sharing and distributing information in various groups of the next-generation
| Project/Area Number |
20560356
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | Nara Institute of Science and Technology |
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Principal Investigator |
KAJI Yuichi Nara Institute of Science and Technology, 情報科学研究科, 准教授 (70263431)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 情報セキュリティ / 暗号鍵 / グループ通信 / LKH法 / マルチキャスト通信 / 放送暗号 |
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| Research Abstract |
This study develops fundamental technologies for sharing and distributing information in various groups of users The study covers two major subjects. In the group key management, we developed an algorithm which makes use of the Huffman algorithm and keeps the good efficiency for long term of use. In the authentication issue, we give a formal model of the cross-domain role-based access control mechanism, and developed a concrete scheme based on the hierarchical ID-based cryptosystem.
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