Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method for managing traffic encryption key in wireless portable internet system and protocol configuration method thereof, and operation method of traffic encryption key state machine in subsc










Image Number 13 for United States Patent #7907733.

Disclosed is a traffic encryption key (TEK) management method for automatically generating a TEK for a multicast or broadcast service by a base station to periodically update a TEK used by a subscriber station. The base station transmits the first Key Update Command message for updating a group key encryption key (GKEK) for encrypting the TEK and the second Key Update Command message for updating the TEK to the subscriber station to update the TEK. The base station establishes an M & B TEK Grace Time which is different from a TEK Grace Time established by the subscriber station, transmits the first message including a new GKEK to the subscriber station through a primary management connection before the M & B TEK Grace Time, and transmits the second message including a new TEK encrypted with the new GKEK thereto through a broadcast connection after the M & B TEK Grace Time.








 
 
  Recently Added Patents
Solar cell using polymer-dispersed liquid crystals
Configurable pitch reducing optical fiber array
High throughput thin film characterization and defect detection
Automatic baroreflex modulation responsive to adverse event
Hermetically sealed atomic sensor package manufactured with expendable support structure
Vectorization of program code
Apparatus and method for an iterative cryptographic block
  Randomly Featured Patents
Non-thermofusible phenol resin powder, method for producing the same, thermosetting resin composition, sealing material for semiconductor, and adhesive for semiconductor
Battery clamp and battery
Hand brake lever interface for single-cylinder truck-mounted railway car brake
Method and apparatus for patch panel patch cord documentation and revision
Reactive polymer, method for manufacturing thereof and use thereof
Method and device for detecting malfunction in a gravity fed intravenous delivery system
Formazan blue reactive dye
Pendant
Software configuration methods and common presentation layer
Guide feeding device for a thermal shrinking film mechanism