Secure network interface device
US8407763B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2009 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Nov 30, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2113
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An interface device for a protected workstation or host has a network interface for connection to a multi-level secure network, a first address corresponding to a guard control port, and a second address corresponding to a guard data port. A transport guard in the device has a control component coupled to the guard control port for processing configuration data sent to the first address and producing a desired security configuration, a guard component coupled to the output of the control component and to the guard data port of the network interface, and a host interface coupled to the guard component for exchanging data with the protected host. Only when permitted by the desired security configuration, the guard component passes network data addressed to the second address of the network interface to the host interface, and passes outbound data from the host interface to the network through the guard data port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.