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:
Sep. 21, 2021
Filed:
Feb. 06, 2019
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
An information distribution device configured to distribute an encrypted update program to a control device connected through a wide-area communication network includes: a physically unclonable function (PUF) information acquiring unit configured to acquire PUF information of the control device recorded in advance; an additional information acquiring unit configured to specify and acquire any of a plurality of pieces of additional information recorded in advance; an encryption processing unit configured to encrypt protection target information based on the PUF information and the additional information that are acquired; and a transmission processing unit configured to transmit the encrypted update program to the control device, wherein the additional information acquiring unit is configured to change the additional information to be specified in accordance with a time.