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Enhancing Web Privacy through Policies and Trust

Enhancing Web Privacy through Policies and Trust. Pranam Kolari. Work with Anupam Joshi, Tim Finin, Li Ding, Shashidhara Ganjugunte, Lalana Kagal. Motivation. compliant. Non-compliant. Trust website policies. Distrust website policies. W3C specified P3P Architecture. P3P Compliance.

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Enhancing Web Privacy through Policies and Trust

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  1. Enhancing Web Privacy through Policies and Trust Pranam Kolari Work with Anupam Joshi, Tim Finin, Li Ding, Shashidhara Ganjugunte, Lalana Kagal Motivation compliant Non-compliant Trust website policies Distrust website policies W3C specified P3P Architecture P3P Compliance Consumer Confidence • Rei Policy Language • Improved modeling of users privacy preferences • Through grounding in the Semantic Web provides strong semantics and extensibility • Rei policy language based on deontic concepts can additionally model obligations and dispensation Website Evaluation Ontology www.slashdot.org serviceType popularity DiscussionGroup 9 hasP3P owner URI OSDN • Trust • Improved modeling of a users trust preferences for privacy • Design of a website evaluation ontology • A social network for exchange and evolution of trust with websites • Use of FOAF and other existing networks for knowledge sharing isBasedOutOf hasPrivacyCertifier USA -- hasTextPolicy subDomainOf URI -- policySimilarTo lawEnforcedBy OSDN Yes US hasPolicyEnforcement • Key Points • Web Sites optionally publish P3P policies • Clients specify privacy preferences using a policy language, for instance Rei • Privacy Expert is the privacy enhancement enabler by binding together entities of the system • Rei Engine evaluates policies of users against website attributes • Website Recommender Network propagates and builds a model of websites based on reputation • FOAF – Enables the creation of the website recommender network publish (optionally) Website Recommender Network Web Server P3P Policy Ontologies, Trust rules Personal agents XSLT Transformer Rei Engine Privacy Expert Intelligent Privacy Proxy* FOAF Rei Privacy Policy (RDF based, enhancements over APPEL) Trusted Agent Network# Clients publish # FOAF, Golbeck, Li ideas of Trust Credits: P3P Dashboard from Ernst and Young P3P Architecture from W3C http://ebiquity.umbc.edu Work partially supported by NSF award ITR-IIS-0325172

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