Abstract. The rapid increase on the circulation of data over the web has highlighted the need for distributed storage of Internet-accessible information due to the rapid increase o...
Privacy and security have always been key concerns for individuals. They have also been closely related concepts: in order to increase their perception of security, people sacriï¬...
Today, database relations are widely used and distributed over the Internet. Since these data can be easily tampered with, it is critical to ensure the integrity of these data. In...
In group communication, users often have different access rights to multiple data streams. Based on the access relation of users and data streams, users can form partially ordered...
The current landscape for digital rights management (DRM) consists of various ad hoc technologies and platforms that largely focus on copy protection. The fragmented nature of the...