Nomura Research Institute, Ltd.

Yasunori Hokazono

Koutarou Tamura

Hiroshi Ito

A secret calculation system includes an acquisition unit that acquires each of a plurality of pieces of processing target data indicating data encrypted using a plurality of pieces of different key information generated by a plurality of information processing systems, from a corresponding information terminal of a plurality of information terminals, a secret calculation unit that generates result data indicating a result of calculation based on the plurality of pieces of processing target data in a state where the plurality of pieces of processing target data are encrypted, and a providing unit that provides the result data to the plurality of information terminals.

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Tokyo, Japan

Yasunori Hokazono