Browse Prior Art Database

Specification for DNS over Transport Layer Security (TLS) (RFC7858) Disclosure Number: IPCOM000246734D
Original Publication Date: 2016-May-01
Included in the Prior Art Database: 2016-Jun-29
Document File: 38 page(s) / 42K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

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].

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 6% of the total text.

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

Hu, et al.                   Standards Track                    [Page 1]
 RFC 7858                      DNS over TLS                      Ma...