Nec Corporation

Yoshiyuki Etou

Daisuke Matsuda

Wataru Itonaga

Yoji Mori

Ryo Furukawa

A voting system and a voting method by which electronic voting can be securely conducted are provided. A voting system includes: a secret sharing unit that generates a plurality of shares from voting information by secret sharing; a plurality of share storage units that store the plurality of shares in a distributed manner; a first blockchain processing unit that transmits, to a node managing a blockchain, transaction data of voting conducted using the voting information in order to record the transaction data in the blockchain; and a secure computation unit that performs secure computation for analyzing the voting by using the shares stored in a distributed manner.

Voting system and voting method

A marketing support apparatus includes: a registration unit that registers, in a first database, concealed data obtained by concealing customer information acquired from a customer information management apparatus, an acquisition unit that acquires, from a predetermined business operator, a calculation logic for calculating an evaluation value indicating a degree of a potential customer based on the customer information, a calculation unit that calculates the evaluation value from the concealed data using the calculation logic, and an output unit that outputs output information based on the evaluation value.

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Tokyo, Japan

Yoshiyuki Etou