Method and apparatus for identifying data patterns in a file

Details Method and apparatus for identifying data patterns in a file Method and apparatus for identifying data patterns in a file

2005-04-21

2010-11-16

Shah, Chirag G (Department: 2477)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S412000, C709S224000, C713S188000

Reexamination Certificate

active

07835361

ABSTRACT:
A method and apparatus for identifying data patterns of a file are described herein. In one embodiment, an exemplary process includes, but is not limited to, receiving a data packet of a data stream containing a file segment of a file originated from an external host and destined to a protected host of a local area network (LAN), the file being transmitted via multiple file segments contained in multiple data packets of the data stream, and performing a data pattern analysis on the received data packet to determine whether the received data packet contains a predetermined data pattern, without waiting for a remainder of the data stream to arrive. Other methods and apparatuses are also described.

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