Identity verification-based cryptography for detecting intrusion in wireless sensor networks

Identity Verification Based Cryptosystem (IDVBC) mechanism is implemented here for providing a novel and secure data transmission among nodes. Here, token-based node identity verification along with certificates and data encoding mechanism is carried out to reduce the complexity in wireless networks. By applying local identity verification scheme, the communication overheads get reduced and hence the certificate management process is simplified. Each sensor owns a local private key and should get matched with the public key generated by the base station. Encoding process uses hash signature schemes for enhancing the security measures in the network. Source node sends the encrypted or encoded data with the generated local private key and labelled token ID. Once the token ID verification is done and the key matches with the global private key generated by the BS, the decrypted or decoded data is received by the receiver. The proposed IDVBC scheme has the ability to detect malicious activity of the node, to provide high-level security and able to tolerate several security attacks. Proposed scheme is improved with 39% efficiency better than the conventional method in terms of secured data transmission.