Trust-GSM: A Trust Aware Security Model for Multi-domain Grid

Grid security is a major requirement in grid computing. Trust management is considered as an effective approach to enhance grid security. This paper introduces the trust into the multi-domain grid and qualifies grid trust as the relationship between grid resource providers and grid consumers. In order to provide more flexible and scalable protection for grid resources and services in multi-domain grid, this paper puts forward a novel trust model in multi-domain grid environment. As an application of our trust model, this trust model is originally introduced into grid security framework as an important component of security framework. By analyzing the case study, it is easy to see that our trust aware security model can meet the security requirement of multi-domain grid environment and has the characters of better security, scalability and flexibility.