Method and device of identifying the payload of a data packet in a TCP stream
US8526318B2 · kind B2 · utility
4Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2010 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Nov 15, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and device of identifying payload of a data packet in a TCP stream. The method includes the steps of: calculating a payload signature according to information in header of the data packet in the TCP stream; comparing the payload signature with a pre-stored file signature; determining the payload of the data packet in the TCP stream as belonging to a file corresponding to the pre-stored file signature, in response to a match between payload signatures of multiple data packets and the pre-stored file signature. The present invention can monitor and identify TCP streams by using a more efficient and lower cost solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.