Research Interests:
Web of things (WoT) is an improved and most promising infrastructure of the internet of things (IoT) which permits the smart things to not only integrate to the internet but also to the web. It allows the users to share and create content... more
Web of things (WoT) is an improved and most promising infrastructure of the internet of things (IoT) which permits the smart things to not only integrate to the internet but also to the web. It allows the users to share and create content as well as provide capabilities for data aggregation and analysis through a network to become part of the World Wide Web (W3). Despite these advances, it has shown several security challenges that need to be addressed for the successful deployment of WoT on a commercially variable and large scale. In this paper, authors have analyzed the most noticeable security challenges related to WoT such as unauthorized access, eavesdropping, denial of service attack, tempering, and impersonating, through an analysis of already published empirical studies. Further, we have discussed some of the available mechanisms to overcome security related issues while taking into account the network size and mobility. Authors have used Threat analysis and attack modeling ...
Research Interests:
ABSTRACT Adoption of Service-oriented architecture (SOA) is increasing due to easy service integration and expected cost reductions due to reusability. Nowadays, safety critical, telecommunication and business systems are using SOA. SOA... more
ABSTRACT Adoption of Service-oriented architecture (SOA) is increasing due to easy service integration and expected cost reductions due to reusability. Nowadays, safety critical, telecommunication and business systems are using SOA. SOA based systems still face challenges related to performance and quality of service such as availability. These challenges are due to complexity, distributed services and XML-based message processing. Response time is used to analyze performance of SOA applications and its analysis for web services is required. The solutions for increasing service availability can impose performance overhead as extra resources are required. We have proposed a SOA based model for increasing web services availability, which uses monitoring. In this paper, we have analyzed impact of monitoring on performance of web services in both LAN and WAN environments. We experimentally prove that monitoring can be used to increase service availability. Acceptable service loads and response time can be estimated based on our model.