Methods for establishing a secure point-to-point call on a trunked network
US8724812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2010 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Aug 4, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods for establishing secure point-to-point communications in a trunked radio system include receiving, at a trunking controller, a request from a source endpoint for a traffic channel for confidential communications between the source endpoint and a destination endpoint using a shared unique first symmetric key. The trunking controller provides keying material related to the symmetric key over the secured control channel to at least one of the source or destination endpoints and assigns a traffic channel. Moreover, in response to the request, the controller assigns a traffic channel. The keying material enables the unique first symmetric key to be securely established between the source and destination endpoints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.