[DNSOP] I-D Action: draft-ietf-dnsop-dns-zone-digest-13.txt

internet-drafts@ietf.org Fri, 09 October 2020 21:12 UTC

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Subject: [DNSOP] I-D Action: draft-ietf-dnsop-dns-zone-digest-13.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Domain Name System Operations WG of the IETF.

        Title           : Message Digest for DNS Zones
        Authors         : Duane Wessels
                          Piet Barber
                          Matt Weinberg
                          Warren Kumari
                          Wes Hardaker
	Filename        : draft-ietf-dnsop-dns-zone-digest-13.txt
	Pages           : 38
	Date            : 2020-10-09

   This document describes a protocol and new DNS Resource Record that
   provides a cryptographic message digest over DNS zone data at rest.
   The ZONEMD Resource Record conveys the digest data in the zone
   itself.  When used in combination with DNSSEC, ZONEMD allows
   recipients to verify the zone contents for data integrity and origin
   authenticity.  This provides assurance that received zone data
   matches published data, regardless of how the zone data has been
   transmitted and received.  When used without DNSSEC, ZONEMD functions
   as a checksum, guarding only against unintentional changes.

   ZONEMD does not replace DNSSEC.  Whereas DNSSEC protects individual
   RRSets (DNS data with fine granularity), ZONEMD protects a zone's
   data as a whole, whether consumed by authoritative name servers,
   recursive name servers, or any other applications.

   As specified herein, ZONEMD is impractical for large, dynamic zones
   due to the time and resources required for digest calculation.
   However, The ZONEMD record is extensible so that new digest schemes
   may be added in the future to support large, dynamic zones.

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