Internet Engineering Task Force (IETF) P. Hoffman
Request for Comments: 6014 VPN Consortium
Updates: 4033, 4034, 4035 November 2010
Category: Standards Track
Cryptographic Algorithm Identifier Allocation for DNSSEC
This document specifies how DNSSEC cryptographic algorithm
identifiers in the IANA registries are allocated. It changes the
requirement from "standard required" to "RFC Required". It does not
change the list of algorithms that are recommended or required for
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
Hoffman Standards Track [Page 1]RFC 6014 DNSSEC Alg. Allocation November 2010Copyright Notice
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[RFC2535] specifies that the IANA registry for DNS Security Algorithm
Numbers be updated by IETF Standards Action only, with the exception
of two values -- 253 and 254. In essence, this means that for an
algorithm to get its own entry in the registry, the algorithm must be
defined in an RFC on the Standards Track as defined in [RFC2026].
The requirement from RFC 2535 is repeated in [RFC3755] and the
combination of [RFC4033], [RFC4034], and [RFC4035].
RFC 2535 allows algorithms that are not on the Standards Track to use
private values 253 and 254 in signatures. In each case, an
unregistered private name must be included with each use of the
algorithm in order to differentiate different algorithms that use the
Hoffman Standards Track [Page 2]RFC 6014 DNSSEC Alg. Allocation November 2010
2. Requirements for Assignments in the DNS Security Algorithm Numbers
This document changes the requirement for registration from requiring
a Standards Track RFC to requiring a published RFC of any type.
There are two reasons for relaxing the requirement:
o There are some algorithms that are useful that may not be able to
be in a Standards Track RFC. For any number of reasons, an
algorithm might not have been evaluated thoroughly enough to be
able to be put on the Standards Track. Another example is that
the algorithm might have unclear intellectual property rights that
prevents the algorithm from being put on the Standards Track.
o Although the size of the registry is restricted (about 250
entries), new algorithms are proposed infrequently. It could
easily be many decades before there is any reason to consider
restricting the registry again.
Some developers will care about the standards level of the RFCs that
are in the registry. The registry has been updated to reflect the