A Survey on Lightweight Protocol Using Dynamic Key for Wireless Sensor Network

Abstract: Wireless sensor networks have lots of interest in research department. Wireless sensor networks of thousand of minute devices capable of computation, communication and sensing. Security is a major concern over wireless network. The present work deal with a secure key management which provide the security for wireless sensor network. Conventional public key system may not be applicable because of restricted computing power and memory space. To s this problem a lightweight protocol is used. The present work the author has used random number to form the key .The key management method take part in an important task in security. The reward of present work is that for each pair new key is generated so it is very difficult to break. In the present work, for encryption and decryption, block cipher and dynamic key techniques is used. In this work dynamic key is generated using linear congruential generator. Most important advantage is that after encryption and decryption key is leftover. The result shows that our scheme provides better security connectivity in minor storage cost and in less time. In the recent year for security of data another technique is used known as key management. Another approach is used for data security is using the hash function. Wireless sensor network has the limited computing power and storage space due to this we create a lightweight protocol which contain the one-way hash function and XOR operations so that the production does not require high storage space and computing power.

Keywords: wireless sensor networks, dynamic key, LCG, encryption, decryption, hash function, lightweight protocol, Key distribution.