A Survey on Improving Security of Wireless Sensor Network using Block Chain

Wireless sensor network is widely used in the word due to the need of drastically changing world. People want life to make easy as possible as. But we need to take care of cons of any new emerging technology. This paper discusses challenges in WSN, security concerns in WSN and pros of block chain to solve the issues involved in security. Block chain is widely used and accepted technique to improve the security in data and network. Basically, crypto currencies in the world uses block chain to make their currency secure.