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. 24, 2013
Filed:
Sep. 03, 2008
Kalman Graffi, Frankfurt, DE;
Matthias Hollick, Darmstadt, DE;
Parag Sudhir Mogre, Darmstadt, DE;
Andreas Ziller, München, DE;
Kalman Graffi, Frankfurt, DE;
Matthias Hollick, Darmstadt, DE;
Parag Sudhir Mogre, Darmstadt, DE;
Andreas Ziller, München, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
In a method for secure data transmission in a wireless mesh network, a sending node sends at least one packet to at least one forwarding node which receives the packet from the sending node and forwards the packet to one or more receiving nodes. A destination node receives the packet. A challenge is transmitted from the sending node to the forwarding node causing the forwarding node to reply both to the sending and the receiving node with a response which has transformed information about one or more of the packet/packets. The response is processed to find out whether the forwarding node is misbehaving or not by verifying whether the transformed information is equal to an information which can be or has been derived from the requested packet/packets, wherein the processing is carried out both by the sending node and the receiving node.