Two-Level Grid Access Control Model Based on Resource Performance and Request Priority

This paper summarizes all the mechanisms presented previously to efficiently represent grid computing security policies. The prime advantage of this work is to reduce the complexity by minimizing the number of security rules that require checking. This is achieved by combining the Grid Authorization Graph (GAG) and the Weighted Grid Authorization Graph (WGAG) in a two-level access control model. This model attributes the grid resources to users according to the performance that the job requires, thus avoiding performance waste. Simulations results showed the effectiveness of the proposed model in reducing the number of security rules that require checking.