Secure server-server communication for dual stage biometrics - based password authentication scheme

The distributed environment insists the protection of servers, while information sharing is achieved. The conventional biometrics-based password authentication mechanisms use single server, which can be compromised easily. The dual stage authentication mechanism has been already proved for its security over the single stage authentication mechanism in our previous work. In this paper, the protocol is improved to establish communication between the authentication server and the master server through a secure link. Since the hashed messages are prone to collision attacks, the proposed scheme uses elliptic curve cryptography-based ciphers for establishing connection at the initial stage. The security analysis of the proposed authentication scheme with secure server server communication link reveals the robustness and the security features, which are offered over our previous as well as the conventional authentication mechanisms. (C) 2017 Faculty of Engineering, Alexandria University. Production and hosting by Elsevier B.V.