2013 Fiscal Year Final Research Report
Interchangeable techniques between classical and quantum cryptography
| Project/Area Number |
23650004
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Fundamental theory of informatics
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| Research Institution | Saitama University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 量子計算 / 量子暗号 / 代理計算 / 暗号プロトコル / 暗号理論 |
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| Research Abstract |
Quantum blind computation can be discussed in the measurement-based quantum computation model. As a special case, ancilla-driven quantum computation is defined as computation where measurements are made only on the measurement system and computation is carried on the computational system and those two system are separated. In the ancilla-driven computation model, we derive sufficient conditions for the blindness and show a bind protocol. In cryptography, the universal composability guarantees that a prococol can be used as a part of larger cryptosystems. We show that Fujii-Morimae blind computation, where only the client makes measurements, is universally composable.
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