System and method for autonomously operating public ledger-based credential

A method for autonomously operating a public ledger-based credential, comprising:

• requesting a smart contract to generate a credential issuance authority, wherein the smart contract is deployed on a blockchain platform and generates credential issuance authority information;
• and
• issuing a credential to satisfy the credential issuance authority information generated by the smart contract and registered in the public ledger of the blockchain platform, and providing the issued credential to a first computing device, wherein
• the credential comprises an attribute value for a predetermined attribute item, and
• the credential issuance authority information comprises an attribute value range assigned to a credential issuer with respect to the predetermined attribute item, and public key information of the credential issuer, and
• wherein the credential issuer uniquely assigns the first computing device with the attribute value for the predetermined attribute item, wherein the attribute value is within the attribute value range assigned to the credential issuer.

A system for autonomously operating a public ledger-based credential, comprising:

• a blockchain platform that stores a public ledger in which credential issuance authorization information is registered;
• and
• a processor that verifies a credential issued to a first computing device by referring to the credential issuance authority information registered in the public ledger, wherein
• the credential comprises an attribute value for a predetermined attribute item, and
• the credential issuance authority information comprises an attribute value range assigned to a credential issuer with respect to the predetermined attribute item, and public key information of the credential issuer, and
• wherein the credential issuer issues a credential by uniquely assigning the first computing device with the attribute value within the attribute value range assigned to the credential issuer.

A system for autonomously operating a public ledger-based credential, comprising a credential issuer terminal that requests a smart contract to generate a credential issuance authority, wherein

• the smart contract is deployed on a blockchain platform and generates credential issuance authority information, and issues a credential to satisfy the credential issuance authority information generated by the smart contract and registered in the public ledger of the blockchain platform, and provides the issued credential to a first computing device, wherein
• the credential comprises an attribute value for a predetermined attribute item, and
• the credential issuance authority information comprises an attribute value range assigned to a credential issuer with respect to the predetermined attribute item, and public key information of the credential issuer, and
• wherein the credential issuer issues a credential by uniquely assigning the first computing device with the attribute value within the attribute value range assigned to the credential issuer.