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Assessing DNS privacy under partial deployment of special-use Domain Names

机译：在部分部署特殊用途域名的情况下评估DNS隐私

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摘要

Domain Name System (DNS) leakage occurs when queries for names within a private namespace are propagated in the public DNS infrastructure, which has various privacy implications. To reduce this leakage and improve Tor's privacy, Appelbaum and Muffet suggested in RFC 7686 the special-use of .onion domain name. They recommended how stub, recursive, and authority name servers should behave when encountering .onion domains: they should not attempt to resolve such domains and return NXDOMAIN responses (i.e., blocking the query from propagating in the public DNS). Without any form of analysis of those recommendations in practice, it is hard to tell how much privacy is provided by following such recommendations. We initiate for the study of those recommendations by analyzing them under different contexts and conclude that while the unlikely universal implementation will certainly improve privacy by preventing leakage, partial deployment, which is the likely case with early adoption, will degrade the privacy of individuals not adopting the recommendations.
机译：当在公共DNS基础结构中传播对私有名称空间中的名称的查询时，就会发生域名系统（DNS）泄漏，这会带来各种隐私隐患。为了减少这种泄漏并改善Tor的隐私，Appelbaum和Muffet在RFC 7686中建议使用.onion域名。他们建议了在遇到.onion域时存根，递归和授权名称服务器的行为：它们不应尝试解析此类域并返回NXDOMAIN响应（即，阻止查询在公共DNS中传播）。在实践中，如果不对这些建议进行任何形式的分析，很难通过遵循这些建议来判断提供了多少隐私。我们通过在不同背景下分析建议来开始研究这些建议，并得出结论，尽管不太可能的普遍实施肯定会通过防止泄漏来改善隐私，但是部分部署（这可能是早期采用的情况）会降低未采用的个人的隐私建议。

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