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    • 95. 发明公开
    • INFORMATION PROCESSING PROGRAM, DEVICE, AND METHOD
    • EP3933747A1
    • 2022-01-05
    • EP19922326.4
    • 2019-03-29
    • FUJITSU LIMITED
    • NAGAI, KoichiSHIMADA, Masahiro
    • G06Q50/10H04L9/32
    • An object is to allow an issuing party that issued certificate data to acquire information regarding a receiving party to whom the issued certificate data has been submitted. When the issuing party issues a certificate to a user, digitalized certificate data is transmitted from an issuing party terminal (32) to a user terminal (34), and the issuing party terminal (32) also transmits a registration request. An information processing platform (38) registers processing information relating to the certificate data in a blockchain. When a receiving party terminal (36) of a receiving party to whom the user has submitted the certificate data transmits an inquiry request for an authenticity check of the certificate data, the information processing platform (38) stores in the blockchain an inquiry result of the executed authenticity check and information regarding the receiving party. The information processing platform (38) also returns the inquiry result to the receiving party, and notifies the issuing party that an inquiry has been made. The issuing party references stored processing information in order to acquire the information regarding the receiving party to whom the certificate data has been submitted, as well as to acquire the inquiry result of the authenticity check.