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An Authorization Model without Central Authority for Service Collaboration

机译:没有中央授权的服务协作授权模型

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In the service-oriented computing, a single transaction initiated by a client might invoke many different services in other administrative domains. Existing models for authorizing the access assume that all services involved in collaboration are managed by the central authority, which is not always a realistic premise. In this paper, we propose a novel authorization model for dynamic service collaboration. With the authorization discovery process, the client can discover the needed authorization for service access available in other autonomous domains. With extensions to SoD relationship, the conflicts of client interests can be formalized and expressed as constraints. The authorization problems are formalized to choose the optimal access path for each task. At last, the example and experiments show the practicality and the effectiveness of our scheme.
机译:在面向服务的计算中,由客户端发起的单个事务可能会调用其他管理域中的许多不同服务。用于授权访问的现有模型假定协作中涉及的所有服务均由中央机构管理,这并不总是现实的前提。在本文中,我们提出了一种用于动态服务协作的新型授权模型。通过授权发现过程,客户端可以发现其他自治域中可用的服务访问所需的授权。通过扩展SoD关系,可以将客户利益的冲突形式化并表示为约束。形式化授权问题,以为每个任务选择最佳访问路径。最后通过实例和实验证明了该方案的实用性和有效性。

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