Information security – Access control or authentication – Network
Reexamination Certificate
2007-03-13
2007-03-13
Smithers, Matthew (Department: 2137)
Information security
Access control or authentication
Network
C713S177000, C713S160000
Reexamination Certificate
active
10196488
ABSTRACT:
A computer-based method and system for performing header filtering of data is presented The method comprises compressing the header of a data packet to obtain a header signature and determining if the header signature matches a known header signature. If the header signature is determined to have a match, then the header signature is identified as a known header signature. A header signature may be generated using a multidimensional data compression algorithm. A compression algorithm comprises obtaining the data bits contained in each field of a typical header. Then, a header-field group that corresponds uniquely to each field is determined. Each field is replaced with the header-field group of the corresponding data bits of the field and concatenated to create a header signature.
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Alston & Bird LLP
Smithers Matthew
The Boeing Company
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