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.
Patent No.:
Date of Patent:
May. 02, 2023
Filed:
Jan. 27, 2021
Applicant:
Fujitsu Limited, Kawasaki, JP;
Inventors:
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/08 (2006.01); H04L 9/06 (2006.01); H04L 9/14 (2006.01);
U.S. Cl.
CPC ...
H04L 9/0819 (2013.01); H04L 9/0637 (2013.01); H04L 9/0894 (2013.01); H04L 9/14 (2013.01);
Abstract
A control method includes generating third key information, when receiving a recording request for asset information to a blockchain and first key information, based on the first key information and second key information stored in a specific storage area, generating fourth key information by decrypting key information associated with the blockchain among a plurality of pieces of encrypted key information, by using the generated third key information, transmitting the fourth key information and the recording request to the blockchain.