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. 19, 2026
Filed:
Aug. 12, 2022
Hitachi Astemo, Ltd., Hitachinaka, JP;
Nobuyoshi Morita, Tokyo, JP;
Mikio Kataoka, Tokyo, JP;
Yasuhiro Fujii, Tokyo, JP;
Masashi Yano, Tokyo, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
The present disclosure provides an information processing apparatus that enables updating of a key for program verification without invalidating a program verification function. An information processing apparatusthat calculates a verification value using a key for program verification and that verifies whether the verification value matches a verification expected value stored in advance. The information processing apparatusincludes: a key updating control unitthat updates the key; a storage unitthat stores in advance a verification expected value corresponding to a key updated by the key updating control unit; and a verification expected value changing unitthat when a verification value calculated based on the updated key is verified, changes the verification expected value in the storage unit, the verification expected value being referred to for verification, to a verification value corresponding to the updated key.