Logical Network Boundary Controller

Secure and timely information and intelligence sharing is essential in combatting terrorism and/or responding to emergency situations. Adequate security boundary controls are needed to ensure that sensitive information stays within the defined boundaries while being shared across the networks. The traditional technologies such as the Guard, VPN and firewall have proven to be unworkable and cost-prohibitive. This paper presents the architecture of a network boundary control technology called the logical network boundary controller (LNBC) that overcomes limitations of traditional approaches to secure information sharing across multiple security domains. The software-based LNBC technology can be applied to cost-effectively implement multiple domain security for various existing collaboration tools to create a rapidly configurable and ad hoc collaboration environment for both synchronous and asynchronous applications. A prototype implementation of LNBC is also described in the paper.