SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol
E248469
"SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol" is an IETF specification that updates SSH to use SHA-2-based message authentication codes to improve data integrity and security over the transport layer.
All labels observed (4)
| Label | Occurrences |
|---|---|
| SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol canonical | 2 |
| SSH Transport Layer Protocol | 2 |
| SSH MAC Algorithm Names | 1 |
| SSH-2 protocol suite | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2236380 — 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: SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol Context triple: [RFC 6668, title, SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol]
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A.
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.
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B.
SSH Communications Security
SSH Communications Security is a Finnish cybersecurity company best known for developing and commercializing the Secure Shell (SSH) protocol and related secure communications solutions.
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C.
Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS)
"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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D.
Secure Authentication Version 5
Secure Authentication Version 5 is a security enhancement for the DNP3 protocol that provides robust authentication and protection against unauthorized control and cyber attacks in industrial control systems.
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E.
Curve25519-based schemes
Curve25519-based schemes are cryptographic protocols and algorithms that use the Curve25519 elliptic curve to provide efficient, high-security public-key operations such as key exchange and digital signatures.
- 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: SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol Target entity description: "SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol" is an IETF specification that updates SSH to use SHA-2-based message authentication codes to improve data integrity and security over the transport layer.
-
A.
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.
-
B.
SSH Communications Security
SSH Communications Security is a Finnish cybersecurity company best known for developing and commercializing the Secure Shell (SSH) protocol and related secure communications solutions.
-
C.
Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS)
"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.
-
D.
Secure Authentication Version 5
Secure Authentication Version 5 is a security enhancement for the DNP3 protocol that provides robust authentication and protection against unauthorized control and cyber attacks in industrial control systems.
-
E.
Curve25519-based schemes
Curve25519-based schemes are cryptographic protocols and algorithms that use the Curve25519 elliptic curve to provide efficient, high-security public-key operations such as key exchange and digital signatures.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
IETF specification
ⓘ
RFC ⓘ SSH extension specification ⓘ |
| aimsTo |
align SSH with modern cryptographic best practices
ⓘ
deprecate legacy MAC algorithms in SSH ⓘ |
| appliesToLayer | transport layer ⓘ |
| area | Security ⓘ |
| belongsToFamily | SSH-related RFCs ⓘ |
| benefit |
stronger resistance to collision attacks
ⓘ
stronger resistance to forgery of SSH packets ⓘ |
| category |
cryptographic protocol specification
ⓘ
security protocol enhancement ⓘ |
| concerns |
cryptographic hash functions
ⓘ
keyed message authentication codes ⓘ |
| context | secure remote login and data transfer ⓘ |
| defines | SHA-2-based message authentication codes for SSH ⓘ |
| definesUsage |
how SHA-2 MACs protect SSH transport packets
ⓘ
how SSH peers negotiate SHA-2-based MAC algorithms ⓘ |
| focusesOn |
hash-based message authentication
ⓘ
message authentication codes (MACs) ⓘ |
| improves | robustness of SSH against cryptanalytic advances ⓘ |
| intendedAudience |
SSH library and server developers
ⓘ
security protocol implementers ⓘ |
| layeredOn |
TCP
ⓘ
linked to:
Transmission Control Protocol
|
| objective |
to mitigate weaknesses of older hash functions in SSH
ⓘ
to provide stronger cryptographic primitives for SSH ⓘ |
| partOf | SSH security architecture ⓘ |
| protocol | SSH ⓘ |
| publishedBy | Internet Engineering Task Force ⓘ |
| purpose |
to improve cryptographic security of SSH message authentication
ⓘ
to improve data integrity for SSH transport layer ⓘ |
| relatedTo |
SSH security hardening
ⓘ
cryptographic algorithm agility in SSH ⓘ |
| replaces | weaker hash-based MACs in SSH ⓘ |
| securityProperty |
data integrity
ⓘ
message authentication ⓘ |
| standardizes | use of SHA-2 MACs in SSH transport ⓘ |
| standardType | Internet Standard track document ⓘ |
| status | standards-track specification ⓘ |
| title | SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol ⓘ |
| updatesProtocol | Secure Shell (SSH) Transport Layer Protocol ⓘ |
| usesAlgorithmFamily | SHA-2 ⓘ |
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: SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol Description of subject: "SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol" is an IETF specification that updates SSH to use SHA-2-based message authentication codes to improve data integrity and security over the transport layer.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol
linked to: SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol
subject linked to:
SFTP (SSH File Transfer Protocol)
linked to: SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol
SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol
→
title
→
SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol
ⓘ
linked to: SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol