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arXiv 1109.4677cs.CR
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TrackMeNot:增强Web搜索的隐私性

TrackMeNot: Enhancing the privacy of Web Search

Vincent Toubiana, Lakshminarayanan Subramanian, Helen Nissenbaum

摘要:

大多数搜索引擎可以潜在地基于用户的搜索查询历史来推断用户的偏好和兴趣。虽然搜索引擎可以将这些推断用于各种任务,包括定向广告,但这些任务确实对用户隐私构成严重威胁。2006年,在AOL披露了65万用户的搜索查询后,TrackMeNot作为一个简单的浏览器扩展发布,试图在查询云中隐藏用户的搜索偏好。TrackMeNot的第一个版本,虽然在过去三年中被广泛使用,但在设计上相当简单,并且没有提供任何强有力的隐私保证。在本文中,我们提出了新的设计和实现的TrackMeNot,它解决了许多限制的第一个版本。TrackMeNot解决了两个基本问题。首先,使用用于表征搜索查询的模型,TrackMeNot提供了用于从搜索引擎混淆用户的搜索偏好的机制。其次,TrackMeNot防止泄漏的信息揭示使用混淆的搜索引擎通过几个潜在的侧渠道,在现有的浏览器,如点击,cookie等。最后,我们表明,TrackMeNot不能被检测到当前的搜索机器人检测机制,并证明了TrackMeNot的有效性,通过测试其效率在一个主要的搜索引擎混淆用户的利益。

英文摘要:

Most search engines can potentially infer the preferences and interests of a user based on her history of search queries. While search engines can use these inferences for a variety of tasks, including targeted advertisements, such tasks do impose an serious threat to user privacy. In 2006, after AOL disclosed the search queries of 650,000 users, TrackMeNot was released as a simple browser extension that sought to hide user search preferences in a cloud of queries. The first versions of TrackMeNot, though used extensively in the past three years, was fairly simplistic in design and did not provide any strong privacy guarantees. In this paper, we present the new design and implementation of TrackMeNot, which address many of the limitations of the first release. TrackMeNot addresses two basic problems. First, using a model for characterizing search queries, TrackMeNot provides a mechanism for obfuscating the search preferences of a user from a search engine. Second, TrackMeNot prevents the leakage of information revealing the use of obfuscation to a search engine via several potential side channels in existing browsers such as clicks, cookies etc. Finally, we show that TrackMeNot cannot be detected by current search bot detection mechanisms and demonstrate the effectiveness of TrackMeNot in obfuscating user interests by testing its efficiency on a major search engine.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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