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:
Nov. 17, 2015
Filed:
Jun. 12, 2013
Joanna N. Ptasinski, La Jolla, CA (US);
Roger Casey, San Diego, CA (US);
David Wasserman, San Diego, CA (US);
Stephan Lapic, San Diego, CA (US);
Joanna N. Ptasinski, La Jolla, CA (US);
Roger Casey, San Diego, CA (US);
David Wasserman, San Diego, CA (US);
Stephan Lapic, San Diego, CA (US);
The United States of America, as Represented by the Secretary of the Navy, Washington, DC (US);
Abstract
In a cyphertext (CT) network, a method for detecting anomalies comprising analyzing cyphertext data flows within the CT network where the CT network includes one or more encryption devices for encrypting plaintext data packets into cyphertext data packets such that the cyphertext data flows are directed to one or more destination devices. The cyphertext data includes multiple CT data packets and each CT data packet includes header information where each header includes source address information, destination address information and differentiated service code point (DSCP) information representative of traffic class information. The method further includes analyzing the traffic class information of each header, including using maximum entropy estimation for detecting one or more anomalies within the traffic class distribution of each flow based on the header information for that traffic class.