Kentaro Imafuku

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Quantum cryptographic technology (QCT) is expected to be a fundamental technology for realizing long-term information security even against as-yet-unknown future technologies. More advanced security could be achieved using QCT together with contemporary cryptographic technologies. To develop and spread the use of QCT, it is necessary to standardize devices,(More)
The physical meaning of the EPR–chameleon experiment proposed in [1, 2], in which the EPR correlations are reproduced by local, independent, deterministic choices is reexamined. In addition we extend the mathematical model of [1, 2] by showing that the dynamics considered there is effectively the reduced dynamics of a fully reversible evolution. We also(More)
A lightweight authentication protocol, based on the hardness of the Learning Parity with Noise (LPN) problem, was first designed by Hopper and Blum (HB) in 2001. The protocol is practical for low-cost pervasive devices like RFID, and a lot of varieties were investigated for further improvements about communication complexity and about security. In this(More)
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