Fusion: Practice and Applications FPA 2692-4048 2770-0070 10.54216/FPA https://www.americaspg.com/journals/show/2171 2018 2018 Department of Computer Science & Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram Guntur Dist., A.P., India D. Neela M. Shyam Department of Computer Science & Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram Guntur Dist., A.P., India Mohammed Ali Hussain Because wireless infrastructure-less networks are dynamic, varied, and scattered, implementing security in them is exceedingly difficult. Authentication is the most crucial prerequisite for security deployment. It is difficult to implement security based on public-key infrastructure with centralized third-party authentication in an environment without infrastructure. We build and test a chaotic map-based technique that handles authentication as one of the key qualities to accomplish security. We allocate the key management responsibility to cluster-heads after dividing the infrastructure-less into several clusters with cluster-heads. The Diffie-Helman property, which is based on Chebyshev polynomials, is used in the proposed work to establish authentication. Our suggested method avoids unnecessary computations like modular exponentiation and elliptical curve scalar multiplications. It also ensures that the secret session-key is only established between the two designated entities and is resistant to a variety of network attacks. 2023 2023 127 135 10.54216/FPA.130211 https://www.americaspg.com/articleinfo/3/show/2171