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:
Jul. 05, 2005
Filed:
Jun. 08, 1999
Yasutsugu Kuroda, Kanagawa, JP;
Jun Kamada, Kanagawa, JP;
Shoko Iwase, Sunnyvale, CA (US);
Bintatsu Noda, Kanagawa, JP;
Etsuo Ono, Kanagawa, JP;
Yasutsugu Kuroda, Kanagawa, JP;
Jun Kamada, Kanagawa, JP;
Shoko Iwase, Sunnyvale, CA (US);
Bintatsu Noda, Kanagawa, JP;
Etsuo Ono, Kanagawa, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A storage apparatus includes a key management unit for managing an individual key unique to the apparatus and a common key shared with other storage apparatuses, and an encryption unit for performing an encrypting process or verifying data for performing the encrypting process on electronic data stored in the apparatus to which the unit belongs using the individual key, and performing the encrypting process or verifying the data on the electronic data transmitted to or received from another apparatus using the common key. Thus, the apparatus communicates data using an applicable common key in a local environment and a global environment, appropriately manages a key in each environment, and guarantees the security of the electronic data.