A Secure Authentication Mechanism for Wireless Sensor Networks

In Wireless Sensor Networks (WSNs), the sensor nodes are often used to collect the data and send it to the gateway node. This real data are the most important and sensitive. If someone gets this data illegally, then there is no privacy. Thus, user authentication is most precious for securing this data over an insecure channel. To keep this important matter in mind, we have developed a secure authentication mechanism for WSNs. The proposed method is proved through BAN logic, which guarantees mutual authentication and session key agreement securely. The informal security analysis is also executed for the proposed mechanism to show that it resists various wicked attacks. Apart from this, the performance evaluation is also carried out along with other existing schemes in regards of communication and computation costs.