Domain Name System Security (DNSSEC) Algorithm Numbers (original) (raw)

Created

2003-11-03

Last Updated

2025-06-10

Available Formats

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Registries Included Below

• DNS Security Algorithm Numbers
• DNS KEY Record Diffie-Hellman Prime Lengths
• DNS KEY Record Diffie-Hellman Well-Known Prime/Generator Pairs

DNS Security Algorithm Numbers

Registration Procedure(s)

Standards Action or Specification Required

Expert(s)

Unassigned

Reference

[RFC4034][RFC3755][RFC6014][RFC6944][RFC-ietf-dnsop-rfc8624-bis-13]

Note

Adding a new entry to the "DNS System Algorithm Numbers" registry with a recommended value of "MAY" in the "Use for DNSSEC Signing", "Use for DNSSEC Validation", "Implement for DNSSEC Signing", or "Implement for DNSSEC Validation" columns will subject to the "Specification Required" policy as defined in [RFC8126] in order to promote continued evolution of DNSSEC algorithms and DNSSEC agility. New entries added through the "Specification Required" process will have the value of "MAY" for all columns.

Adding a new entry to, or changing existing values in, the "DNS System Algorithm Numbers" registry for the "Use for DNSSEC Signing", "Use for DNSSEC Validation", "Implement for DNSSEC Signing", or "Implement for DNSSEC Validation" columns to any other value than "MAY" requires a Standards Action.

If an item is not marked as "RECOMMENDED", it does not necessarily mean that it is flawed; rather, it indicates that the item either has not been through the IETF consensus process, has limited applicability, or is intended only for specific use cases.

Note

The KEY, SIG, DNSKEY, RRSIG, DS, and CERT RRs use an 8-bit number used to identify the security algorithm being used.

All algorithm numbers in this registry may be used in CERT RRs. Zone signing (DNSSEC) and transaction security mechanisms (SIG(0) and TSIG) make use of particular subsets of these algorithms. Only algorithms usable for zone signing may appear in DNSKEY, RRSIG, and DS RRs. Only those usable for SIG(0) and TSIG may appear in SIG and KEY RRs.

• There has been no determination of standardization of the use of this algorithm with Transaction Security.

Available Formats

CSV

DNS KEY Record Diffie-Hellman Prime Lengths

Registration Procedure(s)

IETF Review

Reference

[RFC2539]

Available Formats

CSV

DNS KEY Record Diffie-Hellman Well-Known Prime/Generator Pairs

Reference

[RFC2539]

Available Formats

CSV