INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM

Title:

INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM

Document Type and Number:

WIPO Patent Application WO/2022/102418

Kind Code:

A1

Abstract:

This information processing device (30) comprises a first recording unit (331), a verification unit (332), and a second recording unit (333). The first recording unit (331), in response to a request from an information management device (20) that manages data, records information about browsing permission for the data onto blockchain. The verification unit (332), on the basis of the information about the browsing permission written onto the blockchain, verifies a proof of a zero-knowledge proof for authenticating a valid user to whom the browsing permission has been applied. The second recording unit (333) records information about the proof verification result onto the blockchain.

Inventors:

UCHIDA ATSUSHI (JP)
MARUYAMA SHINYA (JP)

Application Number:

PCT/JP2021/039765

Publication Date:

May 19, 2022

Filing Date:

October 28, 2021

Export Citation:

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Assignee:

SONY GROUP CORP (JP)

International Classes:

H04L9/32; G06F21/31; G06F21/64; G09C1/00

Foreign References:

JP2020010267A

2020-01-16

Other References:

KEN NAGANUMA; MASAYUKI YOSHINO; HISAYOSHI SATO; TAKAYUKI SUZUKI: "Auditable Zerocoin", SUMMARY OF 2017 SYMPOSIUM ON CRYPTOGRAPHY AND INFORMATION SECURITY (SCIS 2017), JANUARY 24-27, 2017, IEICE, JP, 24 January 2017 (2017-01-24) - 27 January 2017 (2017-01-27), JP, pages 1 - 5, XP009536964
"Virtual Currency Textbook: How cryptocurrencies such as Bitcoin work", 9 December 2016, NIKKEI BUSINESS PUBLICATIONS, INC., JP, ISBN: 978-4-8222-8545-6, article NARAYANAN, A. ET AL.: "Section 6.5", pages: 276 - 288, XP009536767