Anonymous decisions in an access control system
US9860216B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2013 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Nov 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2141
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.