Title:
USE RIGHT INFORMATION PROCESSING DEVICE, USE RIGHT INFORMATION PROCESSING SYSTEM, AND USE RIGHT INFORMATION PROCESSING METHOD, BASED ON SMART CONTRACT
Document Type and Number:
WIPO Patent Application WO/2021/117406
Kind Code:
A1
Abstract:
[Problem] To provide a use right information processing device for securely managing a use right without using an authentication server and appropriately allowing a valid user to use an apparatus. [Solution] This use right information processing device performs processing related to authentication and authorization for a user to use an apparatus to be controlled, by using a smart contract. The use right information processing device stores data for authentication that are shared with a user terminal used by the user and have a value different for each processing; receives, from the user terminal, signature data generated by applying a signature to the data for authentication using a secret key corresponding to the user at the user terminal; derives a public key corresponding to the secret key from the signature data and the data for authentication, using an elliptic curve digital signature algorithm; and acquires, using the public key or corresponding identification information, information related to the use right of the apparatus of the user recorded in advance in association with the public key or the identification information, in the smart contract.
Inventors:
MORIYA HIDEYOSHI (JP)
TACHIBANA HIROYUKI (JP)
TACHIBANA HIROYUKI (JP)
Application Number:
PCT/JP2020/042051
Publication Date:
June 17, 2021
Filing Date:
November 11, 2020
Export Citation:
Assignee:
A42 INC (JP)
International Classes:
H04L9/32; G06F21/31; G06F21/60
Domestic Patent References:
| WO2018126059A1 | 2018-07-05 |
Foreign References:
| JP6511201B1 | 2019-05-15 | |||
| JP6469920B1 | 2019-02-13 |
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
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