| Project/Area Number |
20760242
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Communication/Network engineering
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
HFUJITA Hachiro Tokyo Metropolitan University, システムデザイン研究科, 助教 (30431795)
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| Project Period (FY) |
2008 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2008: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
|
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| Keywords | 量子暗号 / 量子誤り訂正符号 / CSS符号 / 鍵生成レート / 誤り訂正 |
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| Research Abstract |
Quantum cryptography cannot be broken in principle. This is a big advantage over the RSA cryptosystem that can be broken if an adversary has a powerful computer. Although quantum cryptography is secure, its key generation rate is small. The aim of this research is to construct higher key rate quantum cryptography. The research project consists of two steps. In the 1^<st> step we investigate properties and decoding of the enlarged CSS code and in the 2^<nd> step we use the results obtained in the 1^<st> step to construct a higher key rate protocol. Unfortunately, we have not yet proved the security of the protocol.
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