2010 Fiscal Year Final Research Report
Study on the efficiency and security of information
| Project/Area Number |
21860064
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Communication/Network engineering
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| Research Institution | The University of Tokushima |
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Principal Investigator |
WATANABE Shun The University of Tokushima, 大学院・ソシオテクノサイエンス研究部, 助教 (70546910)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 情報理論的暗号 / 情報理論 / 量子暗号 |
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| Research Abstract |
In this study, we investigated the efficiency and the security of information theoretic cryptography, and main results are summarized as follows. First, in the quantum key distribution protocols, we clarified the optimal polarization axis compensation method for the unital channel class. Second, we clarified that the key generation method widely used in literatures is not secure in the sense of the so-called strong security criterion. Third, in the secret key agreement from correlated Gaussian sources, we clarified the trade-off between the public communication rate and the key generation rate.
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