U.S. patents available from 1976 to present.
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Network security system and method using a parallel finite state machine adaptive active monitor and responder

Patent 5414833 Issued on May 9, 1995. Estimated Expiration Date: Icon_subject October 27, 2013. 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.

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Inventors

Application

No. 144161 filed on 10/27/1993

US Classes:

726/22, MONITORING OR SCANNING OF SOFTWARE OR DATA INCLUDING ATTACK PREVENTION713/164, Security kernel or utility713/188COMPUTER VIRUS DETECTION BY CRYPTOGRAPHY

Examiners

Primary: Atkinson, Charles E.

Attorney, Agent or Firm

Foreign Patent References

  • 61-53855 JP. 03/13/1986

International Class

H04L 009/00

Abstract

A system and method provide a security agent, consisting of a monitor and a responder, that respond to a detected security event in a data communications network, by producing and transmitting a security alert message to a network security manager. The alert is a security administration action which includes setting a flag in an existing transmitted protocol frame to indicate a security event has occurred. The security agent detects the transmission of infected programs and data across a high-speed communications network. The security agent includes an adaptive, active monitor using finite state machines, that can be dynamically reprogrammed in the event it becomes necessary to dynamically reconfigure it to provide real time detection of the presence of a suspected offending virus.

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