Secure transport of multicast traffic
US8132000B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2009 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Aug 27, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Secure tunneled multicast transmission and reception through a network is provided. A join request may be received from a second tunnel endpoint, the join request indicating a multicast group to be joined. Group keys may be transmitted to the second tunnel endpoint, where the group keys are based at least on the multicast group. A packet received at the first tunnel endpoint may be cryptographically processed to generate an encapsulated payload. A header may be appended to the encapsulated payload to form an encapsulated packet, wherein the header includes information associated with the second tunnel endpoint. A tunnel may be established between the first tunnel endpoint and the second tunnel endpoint based on the appended header. The encapsulated packet may be transmitted through the tunnel to the second tunnel endpoint. The second tunnel endpoint may receive the encapsulated packet. Cryptographic processing of the encapsulated packet may reveal the packet having a second header. The packet may then be forwarded on an interface toward at least one multicast recipient identified in the second header.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.