We propose the role-and-relation-based access control (R2 BAC) model for workflow systems. In R2 BAC, in addition to a user's role memberships, the user's relationships w...
— Trust in software services is a key prerequisite for the success and wide adoption of Services-Oriented Computing (SOC) in an open Internet world. However, trust is poorly asse...
We present an analysis of security vulnerabilities in the Domain Name System (DNS) and the DNS Security Extensions (DNSSEC). DNS data that is provided by name servers lacks suppor...
A web service is a programmable web application accessible using standard Internet protocols. A threelayer architecture has been suggested for web services: service providers, ser...
Social media sites such as Twitter continue to grow at a fast pace. People of all generations use social media to exchange messages and share experiences of their life in a timely...