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:
Jul. 18, 2017

Filed:

Oct. 09, 2014
Applicants:

Michael Green, Central Valley, NY (US);

Stephen John Unger, Newfoundland, NJ (US);

Nitin Gogate, Montvale, NJ (US);

Inventors:

Michael Green, Central Valley, NY (US);

Stephen John Unger, Newfoundland, NJ (US);

Nitin Gogate, Montvale, NJ (US);

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/32 (2006.01); G06F 7/04 (2006.01); G06F 17/30 (2006.01); H04N 7/16 (2011.01);
U.S. Cl.
CPC ...
H04L 9/3228 (2013.01); H04L 63/08 (2013.01); H04L 63/12 (2013.01); H04L 63/162 (2013.01);
Abstract

Methods and systems are provided for detection of unauthorized entities in communication systems. The method includes obtaining a secret string by a first network element and generating a random number by the first network element. The method also includes computing a first cryptographic result by the first network element. The first cryptographic result is based on a cryptographic function, the secret string, and the random number. The method further includes attempting to transmit, by the first network element, a first packet that includes the random number to a second network element using a layer 2 packet terminating protocol. The method includes receiving, within a configured time, a second packet including a second cryptographic result at the first network element, and terminating transmission to the second network element when a second cryptographic result is different from the first cryptographic result.


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