Hierarchical key management for secure communications in multimedia communication system
US8625787B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2010 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jun 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/60
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method performed in a third computing device comprises: receiving a request from one of a first computing device and a second computing device; and in response to the request, facilitating establishment of a security association between the first computing device and the second computing device such that the first computing device and the second computing device can then facilitate establishment of a security association between first user equipment and second user equipment. The first computing device, the second computing device and the third computing device comprise at least a part of a key management hierarchy wherein the first computing device and the second computing device are on a lower level of the hierarchy and the third computing device is on a higher level of the hierarchy. The first and second computing devices are configured to perform a key management function for respective first and second user equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.