Password Renewal Enhancement for Dynamic Authentication in Wireless Sensor Networks

Security approaches in wireless sensor networks due to limitation of energy and resource are different from traditional protocols in current networks. So, many security problems exist such as authentication, integrity, digital signature and etc., and there has been relatively little research suited for wireless sensor networks. We proposed an enhanced version of scheme on dynamically clustering in wireless sensor network protocol. In comparison with the previous scheme, our proposed scheme possesses many advantages, including resistance to the replay and forgery attacks, reduction of user´s password leakage risk, capability of renewing password, and better efficiency.