The Secure Shell (SSH) Authentication Protocol
E42557
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.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T338462 — 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: The Secure Shell (SSH) Authentication Protocol Context triple: [RFC 4252, title, The Secure Shell (SSH) Authentication Protocol]
-
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.
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.
New Directions in Cryptography
New Directions in Cryptography is a landmark 1976 paper that introduced the concepts of public-key cryptography and digital signatures, fundamentally reshaping modern cryptography and secure communications.
-
D.
RFC 3412
RFC 3412 is an Internet standard that specifies the message processing and dispatching procedures for the Simple Network Management Protocol (SNMP) within the SNMPv3 framework.
-
E.
Probabilistic Encryption
Probabilistic Encryption is a cryptographic technique that uses randomness in the encryption process so that the same message encrypts to different ciphertexts, enhancing security against attackers.
- 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: The Secure Shell (SSH) Authentication Protocol Target entity description: 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.
-
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.
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.
New Directions in Cryptography
New Directions in Cryptography is a landmark 1976 paper that introduced the concepts of public-key cryptography and digital signatures, fundamentally reshaping modern cryptography and secure communications.
-
D.
RFC 3412
RFC 3412 is an Internet standard that specifies the message processing and dispatching procedures for the Simple Network Management Protocol (SNMP) within the SNMPv3 framework.
-
E.
Probabilistic Encryption
Probabilistic Encryption is a cryptographic technique that uses randomness in the encryption process so that the same message encrypts to different ciphertexts, enhancing security against attackers.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
authentication protocol
ⓘ
network protocol ⓘ |
| allows |
client to attempt multiple authentication methods
ⓘ
server to advertise supported authentication methods ⓘ |
| defines |
methods for authenticating SSH clients to SSH servers
ⓘ
methods for authenticating SSH servers to SSH clients ⓘ |
| designedFor |
protection against eavesdropping
ⓘ
protection against man-in-the-middle attacks ⓘ protection against replay attacks ⓘ |
| follows | SSH transport layer protocol ⓘ |
| goal | securely authenticate users and hosts over untrusted networks ⓘ |
| layerInSSH | authentication layer ⓘ |
| messageType |
SSH_MSG_USERAUTH_BANNER
ⓘ
SSH_MSG_USERAUTH_FAILURE ⓘ SSH_MSG_USERAUTH_INFO_REQUEST ⓘ SSH_MSG_USERAUTH_INFO_RESPONSE ⓘ SSH_MSG_USERAUTH_PK_OK ⓘ SSH_MSG_USERAUTH_REQUEST ⓘ SSH_MSG_USERAUTH_SUCCESS ⓘ |
| operatesOver | encrypted SSH transport connection ⓘ |
| partOf |
SSH
ⓘ
surface form:
Secure Shell (SSH) protocol suite
|
| precedes | SSH connection protocol ⓘ |
| provides |
host authentication
ⓘ
server authentication ⓘ user authentication ⓘ |
| replaces | SSH-1 authentication mechanisms ⓘ |
| requires | established SSH transport session ⓘ |
| securityProperty |
binds authentication to the encrypted transport session
ⓘ
prevents password disclosure in clear text on the network ⓘ |
| standardizedBy |
Internet Engineering Task Force
ⓘ
surface form:
IETF
|
| standardizedIn | RFC 4252 ⓘ |
| supportsAuthenticationMethod |
GSSAPI-based authentication
ⓘ
host-based authentication ⓘ keyboard-interactive authentication ⓘ password authentication ⓘ public key authentication ⓘ |
| supportsFeature |
method negotiation between client and server
ⓘ
multiple authentication methods per session ⓘ partial success and multi-step authentication ⓘ per-service authentication policies ⓘ per-user authentication policies ⓘ |
| usedIn |
remote login over SSH
ⓘ
secure file transfer over SSH ⓘ tunneling and port forwarding over SSH ⓘ |
| uses |
SSH transport layer protocol
ⓘ
challenge-response mechanisms ⓘ digital signatures ⓘ public key cryptography ⓘ |
| versionOf |
The Secure Shell (SSH) Authentication Protocol
self-linksurface differs
ⓘ
surface form:
SSH-2 protocol
|
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: The Secure Shell (SSH) Authentication Protocol Description of subject: 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.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
The Secure Shell (SSH) Authentication Protocol
→
versionOf
→
The Secure Shell (SSH) Authentication Protocol
self-linksurface differs
ⓘ
subject surface form:
Secure Shell (SSH) Authentication Protocol
this entity surface form:
SSH-2 protocol
this entity surface form:
The Secure Shell (SSH) Connection Protocol
SHA-2 Data Integrity Verification for the Secure Shell (SSH) Transport Layer Protocol
→
updatesProtocol
→
The Secure Shell (SSH) Authentication Protocol
ⓘ
this entity surface form:
Secure Shell (SSH) Transport Layer Protocol
The Secure Shell (SSH) Protocol Assigned Numbers
→
references
→
The Secure Shell (SSH) Authentication Protocol
ⓘ
this entity surface form:
SSH Authentication Protocol