Distributed Access Control

ثبت نشده
چکیده

We are interested in the design and evaluation of access control policies for virtual communities, in which an agent can be both a resource consumer as well as a resource provider, and authorization to access resources can be delegated to agents called authorities. We introduce a multiagent model that distinguishes the three roles of consumption, provision and authorization, and to evaluate the model we also introduce a deliberation model.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Rewrite Specifications of Access Control Policies in Distributed Environments

We define a metamodel for access control that takes into account the requirements of distributed environments, where resources and access control policies may be distributed across several sites. This distributed metamodel is an extension of the category-based metamodel proposed in previous work (from which standard centralised access control models such as MAC, DAC, RBAC, Bell-Lapadula, etc. c...

متن کامل

Access control in ultra-large-scale systems using a data-centric middleware

  The primary characteristic of an Ultra-Large-Scale (ULS) system is ultra-large size on any related dimension. A ULS system is generally considered as a system-of-systems with heterogeneous nodes and autonomous domains. As the size of a system-of-systems grows, and interoperability demand between sub-systems is increased, achieving more scalable and dynamic access control system becomes an im...

متن کامل

An Improved Token-Based and Starvation Free Distributed Mutual Exclusion Algorithm

Distributed mutual exclusion is a fundamental problem of distributed systems that coordinates the access to critical shared resources. It concerns with how the various distributed processes access to the shared resources in a mutually exclusive manner. This paper presents fully distributed improved token based mutual exclusion algorithm for distributed system. In this algorithm, a process which...

متن کامل

Modern Standard-based Access Control in Network Services: XACML in action

Access control in distributed systems is a complex problem that can be tackled in several ways. The XACML standard provides a possible solution, with several benefits and some drawbacks. In this paper we investigate the concepts behind distributed access control, review the XACML standard, and provide practical suggestions about the components to be used in building a XACML-based distributed ac...

متن کامل

Engineering Access Control in Distributed Applications

This paper discusses issues of engineering access control solutions in distributed applications for enterprise computing environments. It reviews application-level access control available in existing middleware technologies, discusses open problems in these technologies, and surveys research efforts to address the problems.

متن کامل

A Resource Access Decision Service for CORBA-Based Distributed Systems

Decoupling authorization logic from application logic allows applications with fine-grain access control requirements to be independent from a particular access control policy and from factors that are used in authorization decisions as well as access control models, no matter how dynamic those polices and factors are. It also enables elaborate and consistent access control policies across hete...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003