2020-09-25, rev -11: This document describes a protocol and new DNS Resource Record that provides a cryptographic message digest over DNS zone data. The ZONEMD Resource Record conveys the digest data in the zone itself. When a zone publisher includes a ZONEMD record, recipients can verify the zone contents for accuracy and completeness. This provides assurance that received zone data matches published data, regardless of how the zone data has been transmitted and received.
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