An efficient provably-secure identity-based authentication scheme using bilinear pairings for Ad hoc network

Designing an efficient and secure authentication scheme to ensure secure communication between parties in an ad hoc network remains challenging. Recently in 2017, Shaghayegh and Mehdi proposed an identity-based authentication scheme using bilinear pairings for Ad hoc networks. The scheme is claimed to be secure against a number of known attacks and provides non-repudiation property not found in most other authentication protocols. However, we demonstrate that their scheme is vulnerable to man-in-the-middle and forgery attacks, two previously unknown flaws. We then propose an improved mutual authentication scheme based on identity-based encryption (IBE) for Ad hoc networks. Our security analysis and experimental results demonstrate that the proposed scheme is secure and highly efficient.