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:
Nov. 05, 2019

Filed:

Feb. 17, 2015
Applicant:

British Telecommunications Public Limited Company, London, GB;

Inventors:

Fadi El-Moussa, London, GB;

George Kallos, London, GB;

Ben Azvine, London, GB;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 21/00 (2006.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
H04L 63/1408 (2013.01); H04L 63/145 (2013.01); H04L 63/0428 (2013.01);
Abstract

A malicious encrypted traffic detector connected to a computer network, the detector comprising: a Shannon entropy estimator; an entropy comparator; a store storing a reference measure of Shannon entropy of a portion of network traffic of a malicious encrypted network connection, wherein the estimator is adapted to estimate a measure of entropy for a corresponding portion of network traffic communicated over the computer network, and the entropy comparator is adapted to compare the estimated measure of entropy with the reference measure so as to determine if malicious encrypted network traffic is communicated over the network connection.


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