Return material authorization fulfillment system for smart grid devices with customer specific cryptographic credentials
US9830446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2014 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Dec 19, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S40/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for removing credentials from a smart grid device includes: receiving, by a receiving device, a removal request, wherein the removal request includes a device identifier associated with a smart grid device and is signed by an entity associated with a set of security credentials stored in a memory of the smart grid device, the set of security credentials restricting access to one or more components or operations of the smart grid device; extracting, by a processing device, the device identifier included in the received removal request; generating, by the processing device, a permit configured to remove the set of credentials from the smart grid device, wherein the generated permit includes the extracted device identifier; and transmitting, by a transmitting device, the generated permit to the smart grid device for removal of the set of credentials from the memory of the smart grid device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.