Method and apparatus for providing secure network communications

Details Method and apparatus for providing secure network communications Method and apparatus for providing secure network communications

1997-04-29

1999-08-10

Hua, Ly V.

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

713201, 709200, G06F 700, H04L 2906

Patent

active

059352450

ABSTRACT:
A data pattern enforcer provides secure network communications at an adaptor layer by comparing transmitted and received packets to a set of rules to verify that said packets are appropriately being transmitted or received. The data pattern enforcer prevents application or other software with access to an adaptor on a network from using the adaptor for packet sniffing or spoofing. In a specific embodiment, the data pattern enforcer verifies packets at the layer 2 adaptor level using a value bit vector (which may be alterable or may be preset to a value, including to zero), a count value, and a mask to compare to data found in packets.

REFERENCES:
patent: 5594869 (1997-01-01), Hawe et al.
patent: 5752003 (1998-05-01), Hart
patent: 5796942 (1998-08-01), Esbensen
Bellovin, S.M., et al., "Network Firewalls," IEEE Communications Magazine, vol. 32, No. 8, Sep. 1, 1994, pp. 50-57.

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