Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS)

E191618

IETF standard RFC TLS extension specification

"Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS)" is an IETF standard (RFC 7919) that defines secure, standardized finite-field Diffie-Hellman parameter sets for use in TLS to improve cryptographic security and interoperability.

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All labels observed (3)

Label	Occurrences
Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS) canonical	2
TLS FFDHE extension	1
TLS FFDHE groups	1

How this entity was disambiguated

This entity first appeared as the object of triple T1696059 — 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: Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS)
Context triple: [RFC 7919, title, Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS)]

A. Diffie–Hellman key exchange
Diffie–Hellman key exchange is a foundational cryptographic protocol that enables two parties to securely establish a shared secret over an insecure communication channel.
B. RFC 5246
RFC 5246 is the Internet Engineering Task Force (IETF) standard that specifies Transport Layer Security (TLS) version 1.2, a widely used protocol for securing communications over computer networks.
C. RFC 8446
RFC 8446 is the Internet standard that specifies TLS 1.3, a major revision of the Transport Layer Security protocol focused on improved security and performance for encrypted communications.
D. RFC 4346
RFC 4346 is the Internet Engineering Task Force (IETF) specification that defines Transport Layer Security (TLS) version 1.1, a cryptographic protocol for securing communications over computer networks.
E. The Secure Shell (SSH) Authentication Protocol
The Secure Shell (SSH) Authentication Protocol is a standardized network protocol that defines methods for securely authenticating users and hosts in SSH connections using mechanisms such as passwords, public keys, and keyboard-interactive methods.
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: Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS)
Target entity description: "Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS)" is an IETF standard (RFC 7919) that defines secure, standardized finite-field Diffie-Hellman parameter sets for use in TLS to improve cryptographic security and interoperability.

A. Diffie–Hellman key exchange
Diffie–Hellman key exchange is a foundational cryptographic protocol that enables two parties to securely establish a shared secret over an insecure communication channel.
B. RFC 5246
RFC 5246 is the Internet Engineering Task Force (IETF) standard that specifies Transport Layer Security (TLS) version 1.2, a widely used protocol for securing communications over computer networks.
C. RFC 8446
RFC 8446 is the Internet standard that specifies TLS 1.3, a major revision of the Transport Layer Security protocol focused on improved security and performance for encrypted communications.
D. RFC 4346
RFC 4346 is the Internet Engineering Task Force (IETF) specification that defines Transport Layer Security (TLS) version 1.1, a cryptographic protocol for securing communications over computer networks.
E. The Secure Shell (SSH) Authentication Protocol
The Secure Shell (SSH) Authentication Protocol is a standardized network protocol that defines methods for securely authenticating users and hosts in SSH connections using mechanisms such as passwords, public keys, and keyboard-interactive methods.
F. None of above. chosen

Statements (46)

Predicate	Object
instanceOf	IETF standard ⓘ RFC ⓘ TLS extension specification ⓘ
appliesToProtocol	Transport Layer Security ⓘ linked to: TLS
appliesToProtocolVersion	TLS 1.2 ⓘ earlier TLS versions that support DHE ⓘ
area	Security ⓘ
category	Standards Track ⓘ
contributesTo	forward secrecy in TLS connections using DHE ⓘ
defines	TLS extension for negotiating finite-field Diffie-Hellman parameters ⓘ named FFDHE groups for TLS ⓘ standardized finite-field Diffie-Hellman parameter sets for TLS ⓘ
documentType	Request for Comments ⓘ
intendedUse	Internet-scale TLS deployments ⓘ server and client implementations of TLS that support DHE ⓘ
introduces	named FFDHE2048 group ⓘ named FFDHE3072 group ⓘ named FFDHE4096 group ⓘ named FFDHE6144 group ⓘ named FFDHE8192 group ⓘ
keyExchangeType	finite-field Diffie-Hellman ephemeral (DHE) ⓘ
language	English ⓘ
motivation	enable clients to negotiate acceptable Diffie-Hellman parameter sizes ⓘ standardize well-vetted Diffie-Hellman parameters instead of ad-hoc generation by servers ⓘ
obsoletes	ad-hoc or non-standard finite-field Diffie-Hellman parameter choices in TLS ⓘ
publishedBy	Internet Engineering Task Force ⓘ
purpose	avoid weak or poorly generated Diffie-Hellman parameters ⓘ improve cryptographic security of finite-field Diffie-Hellman in TLS ⓘ improve interoperability of DHE ciphersuites in TLS ⓘ
relatedTo	Diffie-Hellman key exchange ⓘ linked to: Diffie–Hellman key exchange TLS DHE ciphersuites ⓘ TLS FFDHE groups ⓘ linked to: Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS) elliptic curve Diffie-Hellman groups for TLS ⓘ
RFCNumber	RFC 7919 ⓘ
securityGoal	mitigate risks from small or common prime Diffie-Hellman groups ⓘ provide strong security against known attacks on finite-field Diffie-Hellman ⓘ
shortName	FFDHE for TLS ⓘ linked to: FFDHE groups
specifies	generator values for finite-field Diffie-Hellman groups ⓘ minimum acceptable sizes for Diffie-Hellman groups in TLS ⓘ prime moduli for finite-field Diffie-Hellman groups ⓘ
standardizes	IANA registry entries for FFDHE groups ⓘ
status	Proposed Standard ⓘ
stream	IETF ⓘ linked to: Internet Engineering Task Force
title	Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS) ⓘ
usesAlgorithm	finite-field discrete logarithm problem ⓘ
workingGroup	TLS Working Group ⓘ

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

RFC 7919 → title → Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS) ⓘ

RFC 7919 → defines → TLS FFDHE extension ⓘ

linked to: Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS)

Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS) → title → Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS) ⓘ

Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS) → relatedTo → TLS FFDHE groups ⓘ