Performance enhancement for signature based pattern matching

Details Performance enhancement for signature based pattern matching Performance enhancement for signature based pattern matching

2005-03-30

2010-10-05

Shiferaw, Eleni A (Department: 2436)

Information security

Monitoring or scanning of software or data including attack...

C726S026000

Reexamination Certificate

active

07810155

ABSTRACT:
Performance enhancement for signature based pattern matching may include one or more signature preprocessing steps. The signatures in the signature set may be preprocessed prior to performing pattern matching, including by breaking each signature broken down into one or more components. For at least one of the one or more components, boundary values as well as possible offsets of the boundary values may be identified and matched against a data stream to determine whether the data stream does not match a particular signature, thereby allowing a quick narrowing of the set of signatures to be applied fully to the data stream.

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