PlanetLab: an overlay testbed for broad-coverage services
ACM SIGCOMM Computer Communication Review
Communications of the ACM - Organic user interfaces
Policy-Aware Content Reuse on the Web
ISWC '09 Proceedings of the 8th International Semantic Web Conference
Geolocation privacy and application platforms
Proceedings of the 3rd ACM SIGSPATIAL International Workshop on Security and Privacy in GIS and LBS
Distributed data usage control for web applications: a social network implementation
Proceedings of the first ACM conference on Data and application security and privacy
Addressing Data Reuse Issues at the Protocol Level
POLICY '11 Proceedings of the 2011 IEEE International Symposium on Policies for Distributed Systems and Networks
Data usage control enforcement in distributed systems
Proceedings of the third ACM conference on Data and application security and privacy
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Given the ubiquity of data on the web, and the lack of usage restriction enforcement mechanisms, stories of personal, creative and other kinds of data misuses are on the rise. There should be both sociological and technological mechanisms that facilitate accountability on the web that would prevent such data misuses. Sociological mechanisms appeal to the data consumer's self-interest in adhering to the data provider's desires. This involves a system of rewards such as recognition and financial incentives, and deterrents such as prohibitions by laws for any violations and social pressure. Bur there is no well-defined technological mechanism for the discovery of accountability or the lack of it on the web. As part of my PhD thesis I propose a solution to this problem by designing a web protocol called HTTPA (Accountable HTTP). This protocol will enable data consumers and data producers to agree to specific usage restrictions, preserve the provenance of data transferred from a web server to a client and back to another web server, and more importantly provide a mechanism to derive an `audit trail' for the data reuse with the help of a trusted intermediary called a `Provenance Tracker Network'.