A Dynamic Grid Authorization Mechanism with Result Feedback
نویسندگان
چکیده
The authorization mechanisms in existing Grids are relatively static, so we present a dynamic authorization mechanism. Through the negotiation between users and resources, the Grid security management entities match the requests of the user and resource according to corresponding stipulations in security policies, form security contracts, and make authorization decisions. In order to reflect whether the security contracts have been well observed, we introduce the trust parameter as the feedback of our authorization mechanism.
منابع مشابه
Dynamic and Fine-Grained Authentication and Authorization Architecture for Grid Computing
The Globus Toolkit makes it very easy and comfortable for grid users to develop and deploy grid service. As for the security mechanism, however, only static authentication and coarse-grained authorization mechanism is provided in current Globus Toolkit. In this paper we address the limitations of current security mechanism in the Globus Toolkit and propose a new architecture which provides fine...
متن کاملA Dynamic Role-Based Authorization Model in Grid Environment
In large-scale grid environment, the authorization plays a vital role in access control to resources. For the demand of higher dynamicity, complexity and granularity on grid environment, a novel model named dynamic role-based access control (DRBAC) based on RBAC model is presented. DRBAC introduces conceptions of several objects such as rolegraph initial structure, atom role and middle role, an...
متن کاملAn Authorization Architecture Oriented to Engineering and Scientific Computation in Grid Environments
Large-scale scientific and engineering computation is normally accomplished through the interaction of collaborating groups and diverse heterogeneous resources. Grid computing is emerging as an applicable paradigm, whilst, there is a critical challenge of authorization in the grid infrastructure. This paper proposes a Parallelized Subtask-level Authorization Service architecture (PSAS) based on...
متن کاملEnhancing the Performance of Advanced Fine-Grained Grid Authorization System
Grid computing is a system that coordinates distributed resources using standards, open, general purpose protocols and interfaces to provide nontrivial quality of services. Usage Control model (UCON) is a new emerging authorization framework that combined features of traditional access control, trust management and digital right management in one abstraction. Adoption of UCON improved the fine-...
متن کاملEnhancement of Voltage/Frequency Stability in an Autonomous Micro Energy Grid with Penetration of Wind Energy Using a Parallel Fuzzy Mechanism
The main objective of this paper is to model and optimize the parallel and relatively complex FuzzyP+FuzzyI+FuzzyD (FP+FI+FD) controller for simultaneous control of the voltage and frequency of a micro-grid in the islanded mode. The FP+FI+FD controller has three parallel branches, each of which has a specific task. Finally, as its name suggests, the final output of the controller is derived fro...
متن کامل