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.

Date of Patent:
May. 20, 2014

Filed:

Apr. 12, 2013
Applicant:

Kaspersky Lab Zao, Moscow, RU;

Inventors:

Nikolay A Grebennikov, Moscow, RU;

Alexey V Monastyrsky, Moscow, RU;

Alexander A Gostev, Moscow, RU;

Assignee:

Kaspersky Lab ZAO, Moscow, RU;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Analysis of authenticity digital certificates includes. Initial information pertaining to digital certificates is collected from diverse information sources. For each of the digital certificates the initial information includes intrinsic parameter data from among contents of the digital certificate and extrinsic parameter data pertaining to the digital certificate and comprising static data not contained in the contents of the digital certificate. Selected parameter data is stored and analyzed to determine a measure of suspiciousness for each of the digital certificates. If necessary, circumstantial data based on actual usage of one or more of the digital certificates are collected. The initial data and supplemental data are compared against a set of decision criteria that define fraudulent activity, and a determination of authenticity of each of the digital certificates is made.


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