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:
Sep. 07, 2010
Filed:
Jun. 29, 2006
Vijay G Bharadwaj, Redmond, WA (US);
Duncan G Bryce, Redmond, WA (US);
Mike Hamburg, Stamford, CT (US);
Ravindra N Pandya, Clyde Hill, WA (US);
Vijay G Bharadwaj, Redmond, WA (US);
Duncan G Bryce, Redmond, WA (US);
Mike Hamburg, Stamford, CT (US);
Ravindra N Pandya, Clyde Hill, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
In a storage system, multiple information units are individually associated with an access control policy (ACP) of multiple ACPs. Each respective information unit corresponds to a respective information unit encryption key (IUEK). The multiple information units are grouped into encryption zones based on their associated ACPs. In a described implementation, each ACP is associated with a zone root key (ZRK). In another described implementation, each IUEK corresponding to a given information unit is encrypted by an IUEK corresponding to an information unit at a most-proximate linked node of the storage system.