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:
Sep. 16, 2013
Axis Ab, Lund, SE;
Mathias Bruce, Lund, SE;
Marcus Johansson, Lund, SE;
AXIS AB, Lund, SE;
Abstract
A controller device may correspond to a physical access controller in a distributed physical access control system. The controller device may include logic configured to obtain access to a global database that include access control information for a plurality of controller devices. The logic may be further configured to derive a local access rules table from the global database, wherein the local access rules table relates users to access rules, and wherein the local access rules table is encrypted with a local access rules key; and derive a local credentials table from the global database, wherein the local credentials table relates hashed credentials to users, wherein the local credentials table stores, for a user, the local access rules key encrypted with unhashed credentials associated with the user, wherein the unhashed credentials are not stored in the controller device.