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In cloud computing era, datacenter can be organized by resources distributed geographically on demand into a dynamic logical entity. All these virtualized datacenters (VDCs) migrate transparently to another resources set for the best cost-effectiveness. Open storage architecture is one of the basic infrastructures in Cloud. This paper introduces a scheduling model of access request in open storage...
Nowadays, more and more bioinformatics projects are using distributed computing platform. In distributed systems, cooperation is important to enforce its function. Trust management can establish and maintain cooperation between distributed nodes. In this paper, we explore an adaptive trust management in PDAC model [1] to help distributed nodes establishing trust relationships. We firstly discuss a...
An access control policy defines what is authorized, and an access control mechanism implements the policy to ensure that all accesses are in accordance with the underlying policy. Nowadays, many researcher are working for expressing access policies in a formal way. But it is still an open problem. This paper defines a policy language, which is named as PDPL to express access policies and access control...
Distributed systems, such as peer-to-peer systems, computing grids across multiple organizations, and compositional Web services require a rethinking of basic issues in their design and implementation, especially in access control mechanism. This paper establishes a model of access control in distributed systems named as policy domain access control model. We firstly give definitions of policy, credential...
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