Spoorthi, V.Sekaran, K.C.2020-03-302020-03-3020141st International Conference on Networks and Soft Computing, ICNSC 2014 - Proceedings, 2014, Vol., , pp.273-277https://idr.nitk.ac.in/handle/123456789/8962The cloud computing paradigm has been adopted extensively for offering reliable and scalable services over internet. As more and more users are using smartphones for accessing cloud applications, the security risks involving user identity is also increasing. Especially for Enterprise applications which involve critical data, authenticating each and every user is an imperative task. The inherent problem of resource constraints in mobile devices adds more challenges in implementing strong authentication at client end. This paper presents a mobile Single Sign-On (SSO) solution based on Public Key Infrastructure (PKI). It explains how authentication of mobile users can be done using Digital Certificates and how this solution can be used to enable single sign-on in cloud systems. The experimental result shows that the authentication latency for the mobile devices can be greatly reduced once registered with the application. Further, the analysis shows that the proposed system improves bandwidth efficiency and provides better security for SSO systems. � 2014 IEEE.Book chapter