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arXiv 0903.3276cs.CRcs.DS
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去匿名化社交网络

De-anonymizing Social Networks

Arvind Narayanan, Vitaly Shmatikov

摘要:

在线社交网络的运营商越来越多地共享关于用户及其与广告商、应用程序开发人员和数据挖掘研究人员的关系的潜在敏感信息。隐私通常通过匿名化来保护,即,删除姓名,地址等,我们提出了一个框架,用于分析隐私和匿名的社交网络,并开发了一个新的重新识别算法,针对匿名的社交网络图。为了证明其在现实世界的网络中的有效性,我们表明,三分之一的用户谁可以被验证有帐户的Twitter,一个流行的微博服务,和Flickr,一个在线照片共享网站,可以重新识别在匿名的Twitter图只有12%的出错率。我们的去匿名化算法纯粹基于网络拓扑结构,不需要创建大量的虚拟“女巫”节点,对噪声和所有现有的防御都是鲁棒的,即使目标网络和对手的辅助信息之间的重叠很小。

英文摘要:

Operators of online social networks are increasingly sharing potentially sensitive information about users and their relationships with advertisers, application developers, and data-mining researchers. Privacy is typically protected by anonymization, i.e., removing names, addresses, etc. We present a framework for analyzing privacy and anonymity in social networks and develop a new re-identification algorithm targeting anonymized social-network graphs. To demonstrate its effectiveness on real-world networks, we show that a third of the users who can be verified to have accounts on both Twitter, a popular microblogging service, and Flickr, an online photo-sharing site, can be re-identified in the anonymous Twitter graph with only a 12% error rate. Our de-anonymization algorithm is based purely on the network topology, does not require creation of a large number of dummy "sybil" nodes, is robust to noise and all existing defenses, and works even when the overlap between the target network and the adversary's auxiliary information is small.

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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