The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2009
Filed:
Feb. 24, 2005
Yi-min Wang, Bellevue, WA (US);
Qixiang Sun, Amarillo, TX (US);
Daniel R. Simon, Redmond, WA (US);
Wilfred Russell, Redmond, WA (US);
Lili Qiu, Bellevue, WA (US);
Venkata N. Padmanabhan, Bellevue, WA (US);
Yi-Min Wang, Bellevue, WA (US);
Qixiang Sun, Amarillo, TX (US);
Daniel R. Simon, Redmond, WA (US);
Wilfred Russell, Redmond, WA (US);
Lili Qiu, Bellevue, WA (US);
Venkata N. Padmanabhan, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A system and method is provided for evaluating the effectiveness of data encryption for hiding the identity of the source of Web traffic. A signature is constructed from encrypted Web traffic for a Web page sent by a target Web site, and the signature is compared with archived traffic signatures obtained by accessing various Web pages of interest in advance. If the signature of the detected encrypted Web traffic matches a stored traffic signature beyond a pre-set statistical threshold, a positive match is found, and the source of the traffic is identified. Countermeasures for reducing the reliability of source identification based on traffic signature matching are provided.