System for securing inbound and outbound data packet flow in a c

Details System for securing inbound and outbound data packet flow in a c System for securing inbound and outbound data packet flow in a c

1993-12-15

1997-02-25

Lee, Thomas C.

Cryptography

Key management

Having particular key generator

3952001, 395836, 395186, 39518701, 380 42, G06F 1336, G06F 15401

Patent

active

056066686

ABSTRACT:
A filter module allows controlling network security by specifying security rules for traffic in the network and accepting or dropping communication packets according to these security rules. A set of security rules are defined in a high level form and are translated into a packet filter code. The packet filter code is loaded into packet filter modules located in strategic points in the network. Each packet transmitted or received at these locations is inspected by performing the instructions in the packet filter code. The result of the packet filter code operation decides whether to accept (pass) or reject (drop) the packet, disallowing the communication attempt.

REFERENCES:
patent: 4315315 (1982-02-01), Kossiakoff
patent: 4736320 (1988-04-01), Bristol
patent: 5247693 (1993-09-01), Bristol
"A Software Design and Implementation for Filtering, Forwarding and Ciphering in a Secure Bridge", Soriano et al, IEEE, 1992, pp. 487-492.
"A Network Firewall", Marcus J. Ranum, Digital Equipment Corporation.
"Network (In) Security Through IP Packet Filtering", D. Brent Chapman, Proceedings of the Third UNSENIX UNIX Security Symposium; Baltimore, MD, Sep. 1992.
"The TAMU Security Package: An Ongoing Response to Internet Intruders in an Academic Environment", David R. Safford, Douglas Lee Schales, David K. Hess, UNIX Security Symposium IV, Oct. 4-6, 1993.
"The Design of a Secure Internet Gateway", Bill Cheswick, AT&T Bell Laboratories, Jun. 1990.
"An Internet Gatekeeper", Herve Schauer, Christophe Wolfhugel, Herve Schauer Consultants.

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