Research On Key Technologies Of IOT Object Name Service

In recent years, the Internet of Things based on technology of radio frequencyidentification (RFID) and sensor technology is gradually from theoretical research topractical application market. The Object Name Service system (ONS), as animportant foundation for The Internet of Things, provides the mapping betweenobjects encoded RFID and items of information server addresses, and has broadapplication prospects in the fields of intelligent home furnishing, intelligent traffic,intelligent city and so on.At present, the research on some key techniques of Object Name Service are tooscattered and not deep enough, and the research achievements can not form anintegrate solution. This paper researches and analyzes the system architecture,security mechanisms, query algorithm three key technical aspects of the ONS andforms an integrate solution.First, in the aspect of system architecture, the advantages and disadvantages ofP2P architecture and architecture-based DNS are analyzed. An architectureindependent of the DNS is proposed, which has better and more flexible scalability.Secondly, in the aspect of security mechanisms, SSL protocol is used to transfer thedata records, the ONS packet length feature tracking and hiding solution is designedbased on the SSL protocol packet length feature extraction algorithm proposed, whichcan effectively prevent the attacker use SSL protocol to block this threat systemsservice. Thirdly, in the aspect of query algorithm, matching and updating data recordsmethod based on regular expression and set operation are proposed which improvessearch efficiency and reduces storage space data records.Finally, a prototype system to verify and test solutions for key technologies isdesigned and implemented. Test results show that the solutions are presented in thispaper have the advantages of more flexible architecture extension and moreefficiently query.