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:
Jun. 19, 2012
Filed:
Nov. 24, 2008
Sheng Xiao, Amherst, MA (US);
Weibo Gong, Amherst, MA (US);
Sheng Xiao, Amherst, MA (US);
Weibo Gong, Amherst, MA (US);
University of Massachusetts, Boston, MA (US);
Abstract
The present invention provides systems and methods for securing communications in a wireless network by utilizing the inherent randomness of propagation errors to enable legitimate users to dynamically create a shared symmetric secret key. In one embodiment, the invention provides a system with two computers each having a wireless network adapter. The sending node encodes the frames, transmits the frames, determines if the frames were correctly received, retransmits the frames if they were not correctly received, stores the frames that were not retransmitted, and uses the stored frames to generate a secret key. The receiving node receives the encoded frames, determines if the frames were retransmitted, stores at least one of the frames that was not retransmitted, and uses the stored frames to generate the same secret key as the receiving node.