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:
May. 29, 2012
Filed:
Jun. 19, 2007
Oscar Garcia, Aachen, DE;
Heribert Baldus, Aachen, DE;
Oscar Garcia, Aachen, DE;
Heribert Baldus, Aachen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A security system for a hierarchical network () includes L hierarchical levels each corresponding to a security domain level (), and a plurality of local network nodes (A, B, . . . , Z). A keying material generator () generates a set () of correlated keying material for each network node. Each set () of keying material is composed of L sub-sets () of keying material one for each security domain level (). A set up server () distributes the generated sets () of keying material to each network node (A, B, . . . , Z) to enable the network nodes (A, B, . . . , Z) to communicate with one another at a security domain of a hierarchical level k by a use of a corresponding sub-set () of the security keying material.