Method and apparatus to create multicast groups based on proximity
US8687536B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2008 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Jun 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/189
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Devices and methods use close range communication links, such as near field communication (NFC) protocol links, to enable users to authenticate mobile devices to one another to create or expand secure multicast groups. Once the two or more devices establish a close range communication peer-to-peer link the devices exchange multicast group communication data sufficient to permit the devices to receive or send multicast messages. Long range wireless or wired network communication links are then used for multicast message communications. Proximity limits of the close range communication P2P link enables mutual trust to be presumed among devices, reducing the need for security and authentication signaling. The limited range of close range communication P2Plinks renders multicast groups established in this manner less vulnerable to eavesdropping and intrusion. Embodiments enable users to initiate secure multicast group participation merely by bringing two or more devices into close proximity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.