According to realizing the development of security in WSN, the main problems have been found and the solving schemes are exploring and schemes are made for the further researches.
The foreign researches of security in WSN(Wireless Sensor Networks) that include security protocols,arithmetics,the architecture of systems,operating systems and etc.are summarized and analyzed.According to realizing the development of security in WSN,the main problems have been found and the solving schemes are exploring.Furthermore,these schemes are made for the further researches.