| Project/Area Number |
20500064
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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 |
Computer system/Network
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| Research Institution | Nagoya Institute of Technology |
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Principal Investigator |
SAITO Shoichi Nagoya Institute of Technology, 大学院・工学研究科, 准教授 (70304186)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUO Hiroshi 名古屋工業大学, 大学院・工学研究科, 教授 (00219396)
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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 |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | ネットワークセキュリティ技術 / 匿名通信 / オーバレイネットワーク / 分散ハッシュテーブル / プライバシー保護 / 多重暗号通信 / 通信セキュリティ / IDベース暗号 / アドレス隠蔽 |
|---|
| Research Abstract |
In this research, we developed a novel anonymous communication system Bifrost to improve safety and practicality of low-latency anonymous communication systems with multiple-encryptions and multistage-relay. Bifrost can realize improving anonymity and reducing costs of multiple-encryptions and succeed in improving safety and practicality. Moreover, we proposed a new method applying ID-based encryption to anonymous communication systems and succeeded in removing directory servers from them. Therefore a decline in anonymity and scalability by directory servers is removed and practicality is improved. However we cannot present a novel method revoking anonymity of a sender when it abused anonymity. Our system just uses an existing revoking method.
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