REGISTRANT TERMINAL, HOLDER TERMINAL, METHOD, AND PROGRAM

WIPO Patent Application WO/2022/079940

A1

A registrant terminal, according to one embodiment of the present invention, is capable of connecting to a distributed ledger network, and comprises: a first generation unit which generates a private identifier key used in generating an identifier of a file, and a public identifier key used in generating the identifier; a second generation unit which generates a transaction related to generating management information for the distributed ledger network and transmits the transaction to the distributed ledger network to thereby generate the management information in the distributed ledger network; and a third generation unit which uses the public identifier key to generate, as an identifier registered in the management information, an identifier of a file to be processed.

JP2018139427	METHODS AND APPARATUS FOR USING VISIBLE LIGHT COMMUNICATIONS FOR CONTROLLING ACCESS TO AREA
WO/2022/159762	METHOD FOR IMPROVED HASH CHAINING SECURITY
JP2009048627	METHOD AND APPARATUS FOR PERFORMING DELEGATED TRANSACTION

OHASHI SHIGENORI (JP)
NAKADAIRA ATSUSHI (JP)
FUJIMURA SHIGERU (JP)
SUZUKI KEITA (JP)
TODA HONOKA (JP)

PCT/JP2021/020513

April 21, 2022

May 28, 2021

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NIPPON TELEGRAPH & TELEPHONE (JP)

H04L9/32; H04L9/08

JP2010050760A	2010-03-04
JP2020144586A	2020-09-10
JP2018530175A	2018-10-11

CHIKADA, MASAYOSHI ET AL.: "Cross-organizational document sharing system utilizing blockchains", ISPJ SIG TECHNICAL REPORT, vol. 119, no. 123, 10 July 2019 (2019-07-10), pages 7 - 12
OHASHI, SHIGENORI ET AL.: "Access control for IPFS based on tokens on blockchain", PROCEEDINGS OF THE 81ST NATIONAL CONVENTION OF IPSJ, 28 February 2019 (2019-02-28), pages 3 - 19

KURATA, Masatoshi et al. (JP)

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