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RFC 9904
Title: DNSSEC Cryptographic Algorithm Recommendation Update
Process
Author: W. Hardaker,
W. Kumari
Status: Standards Track
Stream: IETF
Date: November 2025
Mailbox: [email protected],
[email protected]
Pages: 13
Obsoletes: RFC 8624
Updates: RFC 9157
I-D Tag: draft-ietf-dnsop-rfc8624-bis-13.txt
URL: https://www.rfc-editor.org/info/rfc9904
DOI: 10.17487/RFC9904
The DNSSEC protocol makes use of various cryptographic algorithms to
provide authentication of DNS data and proof of nonexistence. To
ensure interoperability between DNS resolvers and DNS authoritative
servers, it is necessary to specify both a set of algorithm
implementation requirements and usage guidelines to ensure that there
is at least one algorithm that all implementations support. This
document replaces and obsoletes RFC 8624 and moves the canonical
source of algorithm implementation requirements and usage guidance
for DNSSEC from RFC 8624 to the IANA DNSSEC algorithm registries.
This is done to allow the list of requirements to be more easily
updated and referenced. Extensions to these registries can be made in
future RFCs. This document also updates RFC 9157 and incorporates the
revised IANA DNSSEC considerations from that RFC.
This document does not change the recommendation status (MUST, MAY,
RECOMMENDED, etc.) of the algorithms listed in RFC 8624; that is the
work of future documents.
This document is a product of the Domain Name System Operations Working Group
of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
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