2001 Fiscal Year Final Research Report Summary
Design and analysis of public-key encryption algorithms from computationally intractable problems.
| Project/Area Number |
10205220
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas (B)
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| Allocation Type | Single-year Grants |
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| Research Institution | Kyushu University |
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Principal Investigator |
SAKURAI Kouichi Kyushu Univ. Dept. Computer Science, Associate Prof., システム情報科学研究院, 助教授 (60264066)
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| Co-Investigator(Kenkyū-buntansha) |
OKAMOTO Tatsuaki NTT-Labs, Information-Security, Research-Fellow, 特別研究員
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| Project Period (FY) |
1998 – 2000
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| Keywords | public-key encryption / digital signature / information security / number theory / algorithm / computational complexity / elliptic-curve / lattice-based cryptosystems |
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| Research Abstract |
(1) Survey recent results on the gap between the average-case complexity and the worst-case complexity on computationally intractable problems, then consider the cryptographic application of these problem.
(2) Design (hyper) elliptic-curve cryptosystems, and report their practical performances from software-implementation.
(3) Develop new techniques of provable security in public-key encryption schemes, and clarify advantages of applied schemes over the existing schemes.
(4) The investigator, Okamoto organized the international cryptographic conference. ASIACRYPTO2000 (Dec. 2000, Kyoto) as the Program-Chair and the head investigator, SAKURAI worked as a member of the Program-comittee. More than 250-people attended with successful conference.
(5) The investigator, Okamoto opened the 1st workshop, "number-theoretic algorithms and their applications. " More than 100-researchers including mathematicans and computer-scientists attended for discussing. The head investigator, SAKURAI gave a talk as a result of this research-project.
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