An Overview of Trust Models and Proposal of New Model Based on Reputation for Resource Selection in Grid Computing

Abstract

Abstract-Grid computing is distributed computing taken to the next evolutionary level. It facilitates the sharing of computer resources, allowing users to discover and use remote resources. The goal is to create the illusion of a simple yet large and powerful self managing virtual computer out of a large collection of connected heterogeneous systems sharing various combinations of resources. Users are able to submit jobs to remote resources and have no explicit control over the resources. A central problem for grid services is how to gain confidence that a remote system is performing in accordance with their norms. The effective and competent exploitation of grid computing services needs sophisticated and secured resource management systems. The wide range of selection and the high degree of strangeness leads to the problem in secured selection of resources grid. Without the assurance of a higher degree of confidence relationship, efficient resource allocation and utilization cannot be attained. In recent times, with larger applications in ecommerce and on-line communities, reputation mechanisms have become one of the most important techniques underpinning the distributed application and system safety. This paper investigates such reputation based trust models in the presence of malicious entities which give deliberately wrong feedbacks. We have proposed a new approach in this paper, which intends to offer trust and reputation provide a measure for resource selection in grid computing.