High-assurance architecture for routing of information between networks of differing security level
US8161529B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2007 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Jun 20, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/101
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to routing information between networks of differing security level. Communication to/from each network is handled by a dedicated Offload Engine (OE). Each OE interfaces to a Guard Engine through a Guard Data Mover (GDM) and includes an interface for connecting to an external network. A first OE receives a data packet from a first network intended to be transmitted to a second network. The Guard Engine analyzes the data packet. The Guard Engine includes an ACL (Access Control List) which are rules data packets must meet before being passed onto a destination network. If allowed, the Guard Engine delivers the data packet to the second network via a second OE utilizing a GDM associated with the first OE and a GDM associated with the second OE. The architecture of the present invention reduces the time and effort needed to attain high-assurance certification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.