Faculty Publications
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Item Cryptanalysis and Improvement of Remote User Authentication Scheme Using Smart Card(Institute of Electrical and Electronics Engineers Inc., 2016) Madhusudhan, R.; Hegde, M.In a distributed environment, one of the major concerns is authentication of remote users. In this sector, legitimate users are more powerful attackers. The remote systems working with password and smart card ensures authorised access. Smart card based remote user authentication schemes have been adopted due to their low computation cost and portability. In 2012, Wen and Li proposed an improved dynamic ID based remote user authentication with key agreement scheme. They stated that their scheme provides protection against impersonation attack and preserves secret information. In this paper, we unveil the drawbacks of Wen and Li's scheme. Also we show that their scheme does not detect wrong password quickly, making it vulnerable to insider and smart card stolen attack. Further the scheme provides no protection for forward secrecy. To solve these security weaknesses, we propose a robust authentication scheme which overcomes all the pointed flaws, by keeping eminence of Wen and Li's scheme. © 2016 IEEE.Item Remote User Authentication and Issues: A Survey(Institute of Electrical and Electronics Engineers Inc., 2020) Mehra, R.; Meshram, A.; Chandavarkar, B.R.The most convenient and the simplest authentication method to deal with the important and secret data over an uncertain network is remote user authentication. For remote user authentication, a system call with a high-security network is required, which will help to identify whether the parties which are communicating are trustworthy and genuine. User and the server will be securely authenticated using remote user authentication, protecting and processing the communication in a user-friendly way, and provide security to the user by hiding their details. This paper discusses the different approaches in which a remote user authentication mechanism can be done and the issues in those methods, which will verify both the parties in a secure, simple, and convenient way. © 2020 IEEE.