RFC 7672
E833407
RFC 7672 is an Internet standards document that specifies how to use DNS-Based Authentication of Named Entities (DANE) with SMTP to provide secure email transport.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T9932168 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: RFC 7672 Context triple: [DANE, definedIn, RFC 7672]
-
A.
RFC 7472
RFC 7472 is an Internet Engineering Task Force (IETF) specification that defines extensions and mechanisms for the Internet Printing Protocol (IPP), enhancing network printing capabilities and interoperability.
-
B.
RFC 7671
RFC 7671 is an Internet Engineering Task Force (IETF) standard that specifies operational and security guidelines for using DNS-Based Authentication of Named Entities (DANE) with TLS.
-
C.
RFC 7720
RFC 7720 is an IETF standards document that specifies the technical and operational requirements for the DNS Root Server System.
-
D.
RFC 7721
RFC 7721 is an Internet Engineering Task Force (IETF) document that updates best current practices for the operation and security of root name servers in the Domain Name System (DNS).
-
E.
RFC 7432
RFC 7432 is an IETF standard that defines Ethernet VPN (EVPN), a BGP-based control plane for multipoint Layer 2 VPN services over IP/MPLS networks.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: RFC 7672 Target entity description: RFC 7672 is an Internet standards document that specifies how to use DNS-Based Authentication of Named Entities (DANE) with SMTP to provide secure email transport.
-
A.
RFC 7472
RFC 7472 is an Internet Engineering Task Force (IETF) specification that defines extensions and mechanisms for the Internet Printing Protocol (IPP), enhancing network printing capabilities and interoperability.
-
B.
RFC 7671
RFC 7671 is an Internet Engineering Task Force (IETF) standard that specifies operational and security guidelines for using DNS-Based Authentication of Named Entities (DANE) with TLS.
-
C.
RFC 7720
RFC 7720 is an IETF standards document that specifies the technical and operational requirements for the DNS Root Server System.
-
D.
RFC 7721
RFC 7721 is an Internet Engineering Task Force (IETF) document that updates best current practices for the operation and security of root name servers in the Domain Name System (DNS).
-
E.
RFC 7432
RFC 7432 is an IETF standard that defines Ethernet VPN (EVPN), a BGP-based control plane for multipoint Layer 2 VPN services over IP/MPLS networks.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Internet standards document
ⓘ
Request for Comments ⓘ |
| aimsTo |
improve security of SMTP transport encryption
ⓘ
reduce reliance on traditional public CA infrastructure for SMTP TLS ⓘ |
| applicationLayer | SMTP ⓘ |
| appliesTo |
SMTP clients
ⓘ
SMTP servers ⓘ mail transfer agents ⓘ |
| area |
Applications
ⓘ
Security ⓘ |
| category | Standards Track ⓘ |
| definesConcept |
DANE-verified TLS for SMTP
ⓘ
opportunistic DANE TLS ⓘ |
| definesMechanism |
opportunistic DANE TLS for SMTP
ⓘ
use of DANE with SMTP for TLS ⓘ use of DNS-Based Authentication of Named Entities with SMTP ⓘ |
| focusesOn |
SMTP server authentication using DANE
ⓘ
opportunistic encryption for SMTP ⓘ secure email transport ⓘ |
| identifier | RFC 7672 ⓘ |
| intendedUse | Internet email security ⓘ |
| obsoletedBy | none ⓘ |
| obsoletes | none ⓘ |
| protocol |
SMTP
ⓘ
Simple Mail Transfer Protocol ⓘ
linked to:
SMTP
|
| publishedBy |
IETF
ⓘ
linked to:
Internet Engineering Task Force
Internet Engineering Task Force ⓘ |
| relatedTo |
DANE protocol
ⓘ
linked to:
The DNS-Based Authentication of Named Entities (DANE) Transport Layer Security (TLS) Protocol: TLSA
DNSSEC ⓘ RFC 3207 ⓘ RFC 6698 ⓘ |
| securityProperty |
enables authenticated TLS for SMTP using DNSSEC
ⓘ
prevents downgrade attacks on SMTP TLS when DANE is used ⓘ |
| specifiesUseOf | TLSA DNS resource records ⓘ |
| standardizes |
procedures for SMTP clients to use TLSA records
ⓘ
procedures for SMTP servers to publish TLSA records ⓘ |
| status | Proposed Standard ⓘ |
| stream |
IETF
ⓘ
linked to:
Internet Engineering Task Force
|
| title | SMTP Security via Opportunistic DNS-Based Authentication of Named Entities (DANE) Transport Layer Security (TLS) ⓘ |
| transportLayer |
TCP
ⓘ
linked to:
Transmission Control Protocol
|
| usesTechnology |
DANE
ⓘ
DNS-Based Authentication of Named Entities ⓘ
linked to:
DNS-based Authentication of Named Entities
DNSSEC ⓘ TLS ⓘ Transport Layer Security ⓘ
linked to:
TLS
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: RFC 7672 Description of subject: RFC 7672 is an Internet standards document that specifies how to use DNS-Based Authentication of Named Entities (DANE) with SMTP to provide secure email transport.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.