【作者】 陈华；

【导师】 霍红卫；

【作者基本信息】 西安电子科技大学 ， 计算机软件与理论， 2004， 硕士

【摘要】 随着研究的深入，网格技术的应用不再只局限于科学和工程计算领域，而是逐渐向工商业领域扩展。网格技术应用范围的扩大，直接引发的一个关键问题就是如何实现网格系统的安全性。 本文通过对现有的网格和安全技术的研究，结合逐渐成熟的Web服务技术，提出了一套基于开放式网格服务结构(OGSA)的网格安全体系。本文首先分析了目前的网格和Web服务的特点及其体系结构。其次讨论了公钥基础设施(PKI)及相关技术，并以此作为基本安全问题的解决方案。然后，在PKI的基础之上提出了解决多种复杂安全问题的方法和技术，并且使用Web服务的概念和安全技术构建出了一个基于网格服务的网格安全结构。最后，讨论了三种网格的资源访问控制模型，为实现不同的访问控制策略提供了理论支持。 通过这些讨论和研究，本文从原理上和技术上给出了一整套网格安全问题的解决方案，为以后网格安全技术的研究和发展提供了借鉴和指导。更多还原

【Abstract】 With in-depth research, the domain of grid applications is no longer confined only to the computation of science and engineering, but gradually extends to business and industry. The extended domain arise a key problem that is how to implement the grid security.By the research for current technique of grid and secure, and integrating with Web Service which is gradually mature, this paper presents a grid secure architecture based on Open Grid Service Architecture (OGSA). First, this paper analyzes the characteristic and framework of grid and web service. Second, it discusses the public key infrastructure (PKI) and its corresponding techniques, and has PKI as the solutions for the basic grid secure problems. Then, based on PKI, it presents many methods and techniques to solve the diverse of much complex secure problems, and uses the concept and secure techniques of web service to construct a secure framework based on Grid Service. Final, it discusses three grid resource access control models, and these models provide theoretical reference for the implementation of different access control policy.By these discussion and research, this paper presents a full grid secure solutions from theory to technique. It is a reference and direction for research and development of grid secure technology in the future.更多还原