The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 08, 2022

Filed:

Dec. 01, 2020
Applicant:

Fujitsu Limited, Kawasaki, JP;

Inventors:

Takuma Takeuchi, Kawasaki, JP;

Ken Kamakura, Machida, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/30 (2006.01); G06F 11/20 (2006.01); G06F 12/14 (2006.01); G06F 21/79 (2013.01); H04L 9/00 (2022.01);
U.S. Cl.
CPC ...
H04L 9/30 (2013.01); G06F 21/79 (2013.01); H04L 9/50 (2022.05);
Abstract

An information processing device includes a memory; and a processor coupled to the memory and configured to transmit, to a terminal, a program and a first identifier related to the program, the program being encrypted with a first public key corresponding to a first private key of the terminal, the first identifier being encrypted by using the first public key and a second public key not corresponding to the first private key; and when the terminal receives the first identifier decrypted by the first public key and encrypted by the second public key, register, in a blockchain, transaction information which includes the first identifier decrypted with the second private key corresponding to the second public key.


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