An analysis of privacy leakage in DoQ traffic

An analysis of privacy leakage in DoQ traffic
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DoQ 流量中的隐私泄露分析

DOI:
10.1145/3488658.3493782
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发表时间:
2022
期刊:
Proc. ACM CoNEXT student workshop 2022
影响因子:
--
通讯作者:
K.Fukuda
K.Fukuda
中科院分区:
--
文献类型:
--
作者:
G.Hu;K.Fukuda

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对DNS隐私的需求增加推动了几种加密DNS协议的创建,例如DNS over HTTPS(DoH),DNS over TLS(DoT)和DNS over QUIC(DoQ)。最近,DoT和DoH已经被Google和Cloudflare等供应商部署。不过,有人指出,DoT/DoH仍然存在隐私泄露问题。我们的目标是比较加密DNS的隐私泄漏水平。这项初步工作的重点是分析DoQ流量,以确定对手是否可以推断用户访问的网站类别。我们发现即使在DoQ流量中,信息泄漏仍然是可能的。此外,我们发现,重要的功能主要与查询的到达时间,和准确性得分略有下降,为更多的类别。
Increased demand for DNS privacy has driven the creation of several encrypted DNS protocols, such as DNS over HTTPS (DoH), DNS over TLS (DoT), and DNS over QUIC (DoQ). Recently, the DoT and DoH have been deployed by some vendors like Google and Cloudflare. However, it is pointed out that DoT/DoH still have privacy leakage problems. Our goal is aiming at comparing the level of privacy leakage in encrypted DNS. This preliminary work focuses on analyzing the DoQ traffic to determine whether the adversary can infer the category of websites users visit. We find that information leakage is still possible even in the DoQ traffic. Moreover, we identify that important features are mainly related to inter-arrival times of queries, and the accuracy score slightly decreases for more categories.
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影响因子: --
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