Formalizing Evidence and Trust for User Authorization

形式化用户授权的证据和信任

• 批准号: 0209059
• 负责人: Bharat Bhargava
• 金额: $ 33.22万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-15 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0209059&HistoricalAwards=false
• 关键词: Formalizing; Evidence; Trust; User; Authorization

This project will develop authorization mechanisms for secure information access by a large community of users in an open environment. The research problem is to formalize the trust that is associated with each user for granting privileges of access to data warehouse and the World Wide Web. Evidence is used to prove certain propertied of a user in order to build a trust model. Evidence is formalized and a computational model for the reliability of evidence is developed. This research combines the concepts of role-based access control, user behaviors and profiles, mathematical theory of evidence, and data mining. This research contributes to the design and develo0pment of a trust-enhanced role mapping server, For adaptive authorization, this server cooperates with existing role-based access control mechanisms. A series of experiments are planned to study the performance issues of the trust model prototype. Efficient and adaptive algorithms for role assignment will be developed as a result of these experimental studies. This research will provide a framework for secure authorization systems within applications in the semantic web, e-commerce, airport security procedures, intelligence gathering and policymaking in military, homeland security and database access in general.

这个项目将发展授权机制，供广大用户在开放环境中安全地访问信息。研究的问题是形式化的信任，是与每个用户授予访问数据仓库和万维网的权限。证据用于证明用户的某些属性，以建立信任模型。证据的形式化和证据的可靠性的计算模型的发展。本研究结合了基于角色的存取控制、使用者行为与档案、数学证据理论与资料探勘等概念。本研究有助于设计和开发一个信任增强的角色映射服务器，该服务器与现有的基于角色的访问控制机制相结合，实现自适应授权。通过一系列的实验来研究信任模型原型的性能问题。作为这些实验研究的结果，有效的和自适应的算法角色分配。这项研究将提供一个框架内的应用程序在语义网，电子商务，机场安全程序，情报收集和决策的军事，国土安全和数据库访问的安全授权系统。