Method and system for establishing a security perimeter in computer networks
US6272538A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1998 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Jul 31, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/76
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multi-level network security system is disclosed for a computer host device coupled to at least one computer network. The system including a secure network interface Unit (SNIU) contained within a communications stack of the computer device that operates at a user layer communications protocol. The SNIU communicates with other like SNIU devices on the network by establishing an association, thereby creating a global security perimeter for end-to-end communications and wherein the network may be individually secure or non-secure without compromising security of communications within the global security perimeter. The SNIU includes a host/network interface for receiving messages sent between the computer device and network. The interface operative to convert the received messages to and from a format utilized by the network. A message parser for determining whether the association already exists with another SNIU device. A session manager coupled to said network interface for identifying and verifying the computer device requesting access to said network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.