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. 17, 2022
Filed:
Aug. 07, 2019
Nec Corporation, Tokyo, JP;
Ryo Furukawa, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
An information processing device which includes: a secure storage accessible by only trusted software, in which a first encryption key keeping unit keeping a first encryption key is configured inside a access limit area; a second encryption key keeping unit keeping as a second encryption key; a setup processing activation unit acquiring the second encryption key from the second encryption key keeping unit in response to activation of a local device, and outputting the acquired second encryption key; and a software execution unit being executed as the trusted software, acquiring the second encryption key from the setup processing activation unit, acquiring the first encryption key from the first encryption key keeping unit together with acquisition of the second encryption key, constructing a common encryption key by using the first encryption key and second encryption key, and setting up an encrypted file system by using the constructed common encryption key.