Authentication mechanisms for call control message integrity and origin verification
US7620041B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2004 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Dec 18, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/164
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention incorporates methodologies developed in the Internet Engineering Task Force (IETF) Internet Protocol Security (IPSEC) Working Group into asynchronous transfer mode (ATM) and frame relay (FR) signaling to provide message integrity and origin authentication. In one implementation the invention provides a virtual private network (VPN) infrastructure with call control message integrity, origin verification, and transit network filtering. The invention utilizes a set of control plane messages based on the IPSEC authentication header (AH) methodology to provide these security mechanisms for ATM and FR network switching equipment and signaling protocols. This abstract itself is not intended to limit the scope of this patent. The scope of the present invention is pointed out in the appending claims.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.