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:
Aug. 23, 2022
Filed:
Sep. 14, 2020
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Digital Solutions Corporation, Kawasaki, JP;
Kotaro Endo, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA DIGITAL SOLUTIONS CORPORATION, Kawasaki, JP;
Abstract
A tampering detection system according to an embodiment includes one or more first terminals connectable to any of one or more peers and one or more detectors. The first terminal includes an acquiring unit acquiring a block hash in a blockchain from the peer, and a transmitting unit transmitting a first transaction record that contains a first digitally signed message containing the block hash and data based on a transaction content of the first terminal and contains a digital signature for the first digitally signed message, to the peer. The detector includes a receiving unit receiving the blockchain from the peer and a detecting unit detecting blockchain tampering if the digital signature contained in the first transaction record in a block of the blockchain is invalid or if the blockchain contains no block hashes identical to the block hash contained in the first transaction record in the block.