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:
Sep. 07, 2010
Filed:
Jan. 14, 2009
Security authentication and key management within an infrastructure-based wireless multi-hop network
Heyun Zheng, Sichuan, CN;
Charles R. Baker, Jr., Orlando, FL (US);
Amit Gandhi, Apopka, FL (US);
Keith J. Goldberg, Casselberry, FL (US);
Samer S. Hanna, Sanford, FL (US);
Surong Zeng, Schaumburg, IL (US);
Heyun Zheng, Sichuan, CN;
Charles R. Baker, Jr., Orlando, FL (US);
Amit Gandhi, Apopka, FL (US);
Keith J. Goldberg, Casselberry, FL (US);
Samer S. Hanna, Sanford, FL (US);
Surong Zeng, Schaumburg, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A system and method of security authentication and key management scheme in a multi-hop wireless network is provided herein with a hop-by-hop security model. The scheme adapts the 802.11r key hierarchy into the meshed AP network. In this approach, a top key holder (R0KH) derives and holds the top Pairwise Master Key (PMK) for each supplicant wireless device after the authentication process. All authenticator AP take the level one key holder (RKH) role and receive the next level Pairwise Master Key (PMK) from RKH. The link level data protection key is derived from PMKvia the 802.11i 4-way handshaking.