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2011 IEEE Symposium on Security and Privacy REPRIV: Re-Imagining Content Personalization and In-Browser Privacy

By Matthew Fredrikson and Benjamin Livshits


Abstract—We present REPRIV, a system that combines the goals of privacy and content personalization in the browser. REPRIV discovers user interests and shares them with thirdparties, but only with an explicit permission of the user. We demonstrate how always-on user interest mining can effectively infer user interests in a real browser. We go on to discuss an extension framework that allows third-party code to extract and disseminate more detailed information, as well as language-based techniques for verifying the absence of privacy leaks in this untrusted code. To demonstrate the effectiveness of our model, we present REPRIV extensions that perform personalization for Netflix, Twitter, Bing, and GetGlue. This paper evaluates important aspects of REPRIV in realistic scenarios. We show that REPRIV’s default in-browser mining can be done with no noticeable overhead to normal browsing, and that the results it produces converge quickly. We demonstrate that REPRIV personalization yields higher quality results than those that may be obtained about the user from public sources. We then go on to show similar results for each of our case studies: that REPRIV enables high-quality personalization, as shown by cases studies in news and search result personalization we evaluated on thousands of instances, and that the performance impact each case has on the browser is minimal. We conclude that personalized content and individual privacy on the web are not mutually exclusive. I

Year: 2013
OAI identifier: oai:CiteSeerX.psu:
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