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. 31, 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 an access limit area; a second encryption key construction unit constructing a second encryption key by consolidating a plurality of pieces of distributed information; a setup processing activation unit outputting the second encryption key constructed by the second encryption key construction unit in response to activation of a local device; and a software execution unit being executed as the trusted software, constructing a common encryption key by using the second encryption key acquired from the setup processing activation unit and the first encryption key acquired from the first encryption key keeping unit, and setting up an encrypted file system by using the constructed common encryption key.