Key delegation for controlling access
US12327447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2022 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Nov 6, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00865
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
It is provided a method for controlling access to an access object. The method is performed in an electronic key device and comprises the steps of: communicating with an access control device to obtain an identity of the access control device; sending an access request to a server, the access request comprising an identity of the electronic key device and the identity of the access control device; receiving a response from the server, the response comprising a key delegation to the electronic key device; and sending a grant access request to the access control device, the grant access request comprising the key delegation, to allow the access control device to evaluate whether to grant access to the access object based on a plurality of delegations comprising a sequence of delegations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.