Firewall system for protecting network elements connected to a public network
February 6, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSecure data processing system architecture with format control Financial transaction system Method and apparatus for enhancing security of communications in a packet-switched data communications system Interactive market management system Method and apparatus for protecting material on storage media and for transferring material on storage media to various recipients One-time logon means and methods for distributed computing systems Method and apparatus for key-management scheme for use with internet protocols at site firewalls Method of verifying identification data in data driven information processing system System for increasing the difficulty of password guessing attacks in a distributed authentication scheme employing authentication tokens Personal key archive InventorsAssigneeApplicationNo. 595957 filed on 02/06/1996ExaminersPrimary: Beausoliel, Robert W. Jr.Assistant: Elmore, Stephen C. Attorney, Agent or FirmInternational ClassG06F 012/14AbstractProviding a firewall for isolating network elements from a publicly accessible network to which such network elements are attached. The firewall operates on a stand alone computer connected between the public network and the network elements to be protected such that all access to the protected network elements must go through the firewall. The firewall application running on the stand alone computer is preferably the only application running on that machine. The application includes a variety of proxy agents that are specifically assigned to an incoming request in accordance with the service protocol (i.e., port number) indicated in the incoming access request. An assigned proxy agent verifies the authority of an incoming request to access a network element indicated in the request. Once verified, the proxy agent completes the connection to the protected network element on behalf of the source of the incoming request.Other References
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