Technologies for internet of things key management
US11115193B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2017 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Dec 29, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/043
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Technologies for key management of internet-of-things (IoT) devices include an IoT device, an authority center server, and a group management server. The IoT device is configured to authenticate with an authority center server via an offline communication channel, receive a group member private key as a function of the authentication with the authority center server, and authenticate with a group management server via a secure online communication channel using the group member private key. The IoT device is further configured to receive a group shared key as a function of the authentication with the group management server, encrypt secret data with the group shared key, and transmit the encrypted secret data to the group management server. Other embodiments are described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.