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:
Jan. 02, 2018
Filed:
Oct. 15, 2015
Kabushiki Kaisha Toshiba, Tokyo, JP;
Ryuiti Koike, Kanagawa, JP;
Mikio Hashimoto, Tokyo, JP;
Naoko Yamada, Kanagawa, JP;
Ryotaro Hayashi, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A system software unit performs a first authentication operation with an external device using a first key that is registered in advance. A secure software unit determines whether or not system software satisfies a soundness condition. A dedicated memory unit is used to store a second key. While performing a reregistration operation for reregistering the first key, a system software unit requests the secure software unit to read the second key. When the system software satisfies the soundness condition, the secure software unit generates verification data using the second key. When a second authentication operation performed with the external device using the verification data is successful, the system software unit performs the reregistration operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile