Analysis and enhancement of secure three-factor user authentication using Chebyshev Chaotic Map

The most popular solution for a variety of business applications such as e-banking and e-healthcare is the multi-server environment. The user registration of individual servers is not the primary concern in such an environment. Here, the user can get various services from different servers by registering him/her under one server. To get secure services through this environment, the authenticity of users and servers are crucial. In this observation, the smart card based biometric authentication system is well popular and easy to use. This paper delineates that the security flaws can be found in a trusted authentication scheme proposed by Chatterjee et al. (2018). Besides, this work proposes an enhanced authentication scheme namely, asymmetric encryption based secure user authentication (ASESUA) to eliminate the drawbacks of Chatterjee et al.’s scheme. The formal security analysis of ASESUA has been done with the help of random oracle model and verified by the well popular AVISPA tool. The analysis shows that ASESUA performs better concerning security, communication cost, and computation cost than other related existing schemes.