Detecting and combating attack in protection system of an industrial control system
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United States of America Patent
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Aug 26, 2014
Grant Date -
Aug 15, 2013
app pub date -
Sep 10, 2012
filing date -
Feb 10, 2012
priority date (Note) -
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Abstract
A method for detecting and combating an attack in an industrial control system includes sending a command stream from a protection network of an industrial control system to at least one zone, the command stream comprising at least one command; concatenating the at least one command into at least one sequential command package comprising units of work; passing the at least one sequential command package to a crypto hash generator; generating at least one of unit of work hash codes or sequence hash codes; comparing the generated hash codes against a database of existing valid unit of work hash codes and sequence hash codes; and if a command stream fault is detected, generating an alert and accessing a database comprising emergency procedures.
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