PPDNS: Privacy-Preserving Domain Name System
نویسنده
چکیده
In current DNS environment, each DNS query generated by a user reveals the origin and target of that query. Over time, a user’s browsing behavior and target domain name’s popularity might be exposed to entities with little or no trust. This paper presents the design and evaluation of a PrivacyPreserving Domain Name System (PPDNS), which prevents privacy leaks during domain name resolution with bounded communication and computation overhead. PPDNS is based on CoDoNS [3], an overlay DNS system, and the computational private information retrieval (PIR) scheme [2], an advanced cryptographic construct. Our evaluation shows that PPDNS results in significantly improved privacy for DNS queries.
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