TRANSMITTING DEVICE, RECEIVING DEVICE, QUANTUM KEY DISTRIBUTION METHOD, AND QUANTUM KEY DISTRIBUTION PROGRAM FOR QUANTUM KEY DISTRIBUTION SYSTEM
A quantum key distribution device is provided with an encoding unit which encodes an optical pulse train; an intensity modulating unit which subjects the encoded optical pulse train to N (where N is an integer at least equal to 3) types of intensity modulation having mutually different intensities,...
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| Format | Patent |
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| Language | English |
| Published |
31.08.2017
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| Online Access | Get full text |
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| Summary: | A quantum key distribution device is provided with an encoding unit which encodes an optical pulse train; an intensity modulating unit which subjects the encoded optical pulse train to N (where N is an integer at least equal to 3) types of intensity modulation having mutually different intensities, with different timings; and a first key distillation processing unit which generates an encryption key on the basis of a data sequence obtained by removing data obtained from an optical pulse having a specific modulation pattern from a data sequence used by the encoding unit and the intensity modulating unit. |
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