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:
Feb. 05, 2019

Filed:

Dec. 21, 2015
Applicant:

Silicon Laboratories Finland Oy, Espoo, FI;

Inventor:

Jere Knaappila, Evitskog, FI;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/32 (2006.01); H04W 12/06 (2009.01); H04W 4/70 (2018.01); H04W 4/00 (2018.01); H04W 12/04 (2009.01);
U.S. Cl.
CPC ...
H04L 9/3271 (2013.01); H04L 9/3273 (2013.01); H04L 63/0435 (2013.01); H04L 63/0869 (2013.01); H04W 12/06 (2013.01); H04W 4/005 (2013.01); H04W 4/70 (2018.02); H04W 12/04 (2013.01);
Abstract

The invention relates to a method for a communication system comprising a first device and a second device. The method comprises transferring a packet from a first device to a second device, which packet comprises an authentication request having a challenge; encrypting the challenge from the authentication request by the second device; including the determined challenge as a challenge-response to a response packet by the second device; sending the response packet from the second device to the first device; determining whether the challenge matches with the challenge-response, and if so, authenticating the second device.


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