Secure user Authentication and File Transfer in Wireless Sensor Network using Improved AES Algorithm

The WSN technology is a highly efficient and effective way of gathering highly sensitive information and is often deployed in mission-critical applications, which makes the security of its data transmission of vital significance. However, the previous research paper failed to distinguish the role of centralized server for it being the main controller of the entire network. The decision of nodes communicating with each other in the previous research paper was based on the information received from the adjacent node. However, the proposed research paper will take into account the centralized server to develop a new technique to prevent the black node from joining the wireless sensor network. Key distribution technique along with the implementation of improved AES algorithm double key encryption will play an important role in transferring the data between authorized nodes securely and preventing unauthorized user from accessing it.