Specification for DNS over Transport Layer Security (TLS) (RFC7858)
Original Publication Date: 2016-May-01
Included in the Prior Art Database: 2016-Jun-29
Internet Society Requests For Comment (RFCs)
Z. Hu: AUTHOR [+6]
Today, nearly all DNS queries [RFC1034] [RFC1035] are sent unencrypted, which makes them vulnerable to eavesdropping by an attacker that has access to the network channel, reducing the privacy of the querier. Recent news reports have elevated these concerns, and recent IETF work has specified privacy considerations for DNS [RFC7626].
Internet Engineering Task Force (IETF) Z. Hu Request for Comments: 7858 L. Zhu Category: Standards Track J. Heidemann ISSN: 2070-1721 USC/ISI A. Mankin Independent D. Wessels Verisign Labs P. Hoffman ICANN May 2016
Specification for DNS over Transport Layer Security (TLS)
This document describes the use of Transport Layer Security (TLS) to provide privacy for DNS. Encryption provided by TLS eliminates opportunities for eavesdropping and on-path tampering with DNS queries in the network, such as discussed in RFC 7626. In addition, this document specifies two usage profiles for DNS over TLS and provides advice on performance considerations to minimize overhead from using TCP and TLS with DNS.
This document focuses on securing stub-to-recursive traffic, as per the charter of the DPRIVE Working Group. It does not prevent future applications of the protocol to recursive-to-authoritative traffic.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7858.
Hu, et al. Standards Track [Page 1]
RFC 7858 DNS over TLS Ma...