Binary state machine system and method for REGEX processing of a data stream in an intrusion detection system
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United States of America Patent
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Apr 12, 2005
Grant Date -
N/A
app pub date -
Oct 8, 1999
filing date -
Oct 8, 1999
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Abstract
A binary state machine system and method for REGEX processing of a data stream in an intrusion detection system are disclosed. The method comprises maintaining a state table. The state table is indexed such that inputs comprising a current state and a current character yield an output of a new state. The new state is related to an indication of an attack on a computer network. The method further includes maintaining the current state. An input stream comprising a plurality of characters is received. A first character of the input stream is selected as the current character. The current character and the current state are compared to the state table to generate a new state.
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