An Enhanced Secure Authentication and Key Agreement Scheme for LTE Networks

The Evolved Packet System Authentication and Key Agreement (EPS-AKA) scheme provides security in Long Term Evaluation (LTE) network. However, EPS-AKA is vulnerable to various security issues such as Denial of Service Attack (DoS), replay attack and lack of privacy protection. Moreover, it does not provide forward secrecy. To remove these security flaws, this paper aims for an Enhanced Secure Authentication and Key Agreement scheme (ES-EPS-AKA) for LTE networks based on Elliptic Curve Cryptography (ECC) technique. The proposed scheme also employs different encrypted functions and HMAC. Security analysis of the proposed ES-EPS-AKA has been analyzed and compared with EPS-AKA and other related existing protocols with respect to various security attributes. Furthermore, the performance of the ES-EPS-AKA has been evaluated and compared with existing protocols in terms of communication, storage and computational overhead. Results show that the proposed ES-EPS-AKA outperforms the existing schemes with respect to above said parameters.