Password-based authentication is the most commonly used method for gaining access to secured systems. Unfortunately, empirical evidence highlights the fact that most passwords are significantly weak and encouraging users to create stronger passwords is a significant challenge. In this research,...

Collaborative and distributed applications, such as dynamic coalitions and virtualized grid computing, often require integrating access control policies of collaborating parties. Such an integration must be able to support complex authorization specifications and the fine-grained integration...

This paper analyzes the potential impacts of the Doha trade proposals (those of the USA, EU and G20) on agricultural production and incomes of China's farmers by region and income group. By linking a global trade model to a national policy model which itself is connected to a set of...

The success of role-based access control both within the research community and industry is undeniable. One of the main reasons for RBAC's adoption is its ability to reduce administration costs, help eliminate errors, and improve the security of a system. Before these advantages can be observed,...

In this information age, data and knowledge extracted by data mining techniques represent a key asset driving research, innovation, and policy-making activities. Many agencies and organizations have recognized the need of accelerating such trends and are therefore willing to release the data...

As distributed collaborative applications and architectures are adopting policy-based solutions for tasks such as access control, network security and data privacy, the management and consolidation of a large number of policies is becoming a crucial component of such solutions. In large-scale...

Collaborative and distributed applications, such as dynamic coalitions and virtualized grid computing, often require integrating access control policies of collaborating parties. Such an integration must be able to support complex authorization specifications and the fine-grained integration...

With the advances in web service techniques, new collaborative applications have emerged like supply chain arrangements and coalition in government agencies. In such applications, the collaborating parties are responsible for managing and protecting resources entrusted to them. Access control...

As distributed collaborative applications and architectures are adopting policy-based solutions for tasks such as access control, network security and data privacy, the management and consolidation of a large number of policies is becoming a crucial component of such solutions. In large-scale...