Access control is a central problem in confidentiality management, in particular in the
healthcare domain, where many stakeholders require access to patients' health records …

In highly open systems like the Internet, attributebased access control (ABAC) has proven its
appropriateness. This is reflected in the utilization of ABAC in authentication and …

Today's malware mutates randomly to avoid detection, but reactively adaptive malware is
more intelligent, learning and adapting to new computer defenses on the fly. Using the same …

Web service is a new service-oriented computing paradigm which poses the unique security
challenges due to its inherent heterogeneity, multi-domain characteristic and highly dynamic …

Cryptographic accumulators are space/time efficient data structures used to verify if a value
belongs to a set. They have found many applications in networking and distributed systems …

Web service technology provides an infrastructure for developing distributed systems and
performing electronic business operations within and across organizational boundaries. It is …

Due to the open and distributed characteristics of web service, its access control becomes a
challenging problem which has not been addressed properly. In this paper, we show how …

With an ever-increasing amount of information on the web, it is critical to understand the
pedigree, quality, and accuracy of your data. Using provenance, you can ascertain the …

Typically, in areas such as e-business and e-government, among others, Web services are
used as basic components for building business processes. Participants in a business …

Web services over the Internet are widely used nowadays. Controlling access in Web
services environment is crucial and a significant challenge because this environment is …