Key distribution method, key receiving method, first key management system, and first network element
US11303622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Aug 1, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An embodiment method includes: obtaining, by a first key management system, a shared key of a first network element, where the shared key of the first network element is generated according to a key parameter obtained after the first network element performs authentication or a root key of the first network element; obtaining a service key, where the service key is used to perform encryption and/or integrity protection on communication data in a first service between the first network element and a second network element; performing encryption and/or integrity protection on the service key by using the shared key of the first network element, to generate a first security protection parameter; and sending the first security protection parameter to the first network element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.