Patent ID: 6272639
Filing Date: 2001-08-07
Classification: G06F,H04L

Abstract:
A method for providing multi-level security on a computer network having a plurality of users comprising:defining at least one relatively secure portion of said network relative to at least one relatively unsecure portion of said network;intercepting a communication transmitted between said at least one secure and said at least one unsecure portions of said network;determining whether network security parameters will be violated by said intercepted communication;encrypting said intercepted communication if said intercepted communication:will not violate said network security parameters;originates from a secure portion of said network;is destined for another secure portion of said network; and,will traverse an unsecure portion of said network; and,if said network security parameters will not be violated:in a first mode, transmitting said intercepted communication; and,in a second mode transmitting said encrypted intercepted communication.