Romanian Journal of Information Science and Technology (ROMJIST)

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ROMJIST is a publication of Romanian Academy,
Section for Information Science and Technology

Editor – in – Chief:

Academician Dan Dascalu

Secretariate (office):
Adriana Apostol
Adress for correspondence: romjist@nano-link.net (after 1st of January, 2019)

Editing of the printed version: Mihaela Marian (Publishing House of the Romanian Academy, Bucharest)

Technical editor
of the on-line version:
Lucian Milea (University POLITEHNICA of Bucharest)

Sponsors:
• National Institute for R & D
in Microtechnologies
(IMT Bucharest), www.imt.ro
• Association for Generic
and Industrial Technologies (ASTEGI), www.astegi.ro

ROMJIST Volume 24, No. 84, 2021, pp. 58-78, Paper no. 680/2021
 

Devender KUMAR, Satish CHAND, Bijendra KUMAR
An Improved User Authentication Protocol Based on Chaotic Maps for Multiserver Environment

ABSTRACT: Now-a-days researchers have focused on designing authentication schemes using smart card because of advancement in computer and communication technologies. Recently, Li et al. have discussed a protocol for multiserver environment based on chaotic maps. We analyze its security and find that it is not resistant to the privileged insider and smart card loss attacks besides user anonymity. Here, we propose an improved user authentication protocol for multiserver environment using the chaotic maps to overcome these limitations. We formally prove using BAN logic that our protocol provides mutual authentication. We show its formal security analysis using random oracle and discuss its informal security analysis to show that it is resistance to the various known attacks. We simulate our protocol using AVISPA tool to verify its security against active and passive attacks. Our protocol is more secure than the existing protocols.

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