SSH

E1267

cryptographic protocol network protocol

SSH (Secure Shell) is a cryptographic network protocol used to securely access, manage, and transfer data between remote computers over unsecured networks.

Aliases (14)

Secure Shell ×14
SSH-2 ×6
SSH Transport Layer Protocol ×3
SSH-1 ×3
SSH protocol ×2
SSH binary packet protocol ×1
SSH protocol suite ×1
Secure Shell (SSH) protocol suite ×1
Secure Shell Protocol ×1
Secure Shell protocol ×1
Secure Shell version 2 ×1
The Secure Shell (SSH) Protocol Architecture ×1
The Secure Shell (SSH) Transport Layer Protocol ×1
secsh ×1

Statements (54)

Predicate	Object
instanceOf	cryptographic protocol → network protocol →
abbreviationOf	Secure Shell →
commonlyImplementedBy	Dropbear SSH → OpenSSH → PuTTY →
currentStandardVersion	SSH-2 →
defaultPort	22 →
definedIn	RFC 4251 → RFC 4252 → RFC 4253 → RFC 4254 →
fullName	Secure Shell →
hasExtension	SCP → SFTP →
hasVersion	SSH-1 → SSH-2 →
introduced	1995 →
layer	application layer →
operatesOver	TCP →
originalAuthor	Tatu Ylönen →
originalImplementation	SSH-1 protocol implementation →
primaryPurpose	remote command execution → secure data transfer → secure remote access →
provides	authentication → confidentiality → integrity →
replaced	Telnet → rlogin → rsh →
runsOn	Linux → Unix-like operating systems → Windows → macOS →
securityProperty	protects against eavesdropping → protects against man-in-the-middle attacks (with proper key verification) →
successorProtocol	SSH-2 →
supportsAuthenticationMethod	host-based authentication → keyboard-interactive authentication → password authentication → public key authentication →
supportsFeature	X11 forwarding → file transfer → port forwarding → tunneling →
typicalUseCase	remote server administration → secure file transfer → secure tunneling of other protocols →
uses	encryption → message authentication codes → public-key cryptography → symmetric-key cryptography →
usesPort	22/TCP →

Referenced by (58)

Subject (surface form when different)	Predicate
RFC 4250 ("Secure Shell protocol") → RFC 4250 ("SSH protocol suite") → RFC 4253 ("Secure Shell") → RFC 4253 ("SSH-2") →	appliesTo
RFC 4250 → RFC 4251 ("Secure Shell") → RFC 4254 → RFC 8332 ("Secure Shell Protocol") →	protocol
Internet → Plink → PuTTY → PuTTY ("SSH-1") →	supportsProtocol
RFC 4250 ("SSH-2") → RFC 4252 ("Secure Shell") → RFC 4252 ("SSH-2") →	relatedTo
RFC 6668 ("Secure Shell") → RFC 8332 ("Secure Shell") → RFC 8332 →	updatesProtocol
Diffie–Hellman key exchange ("Secure Shell") → Elliptic Curve Cryptography → Poly1305 →	usedIn
AES-GCM → ChaCha20 → RSA →	usedInProtocol
Tatu Ylönen ("Secure Shell") → Tatu Ylönen ("SSH-1") →	developed
SSH ("SSH-1") → SSH ("SSH-2") →	hasVersion
Tatu Ylönen ("Secure Shell") → Tatu Ylönen ("SSH protocol") →	knownFor
SSH Communications Security ("Secure Shell") → SSH Communications Security ("SSH protocol") →	notableWork
RFC 2419 ("Secure Shell") → RFC 2419 →	relatedToProtocol
RFC 4251 ("The Secure Shell (SSH) Protocol Architecture") → RFC 4253 ("The Secure Shell (SSH) Transport Layer Protocol") →	title
PSCP → RFC 4254 ("SSH Transport Layer Protocol") →	usesProtocol
IETF NETCONF Working Group → RFC 4252 ("SSH Transport Layer Protocol") →	usesTransport
RFC 4252 ("secsh") → RFC 6668 ("Secure Shell") →	workingGroup
SSH ("Secure Shell") →	abbreviationOf
SSH_MSG_USERAUTH_SUCCESS ("SSH-2") →	belongsToProtocol
Telnet →	commonlyReplacedBy
SSH ("SSH-2") →	currentStandardVersion
Transmission Control Protocol →	defaultFor
RFC 4251 ("SSH binary packet protocol") →	defines
RFC 4253 ("SSH Transport Layer Protocol") →	definesProtocol
RFC 4250 ("Secure Shell version 2") →	focusesOn
SSH ("Secure Shell") →	fullName
SSH Communications Security →	hasAbbreviation
RFC 8439 →	intendedUse
Secure Shell (SSH) Authentication Protocol ("Secure Shell (SSH) protocol suite") →	partOf
GNU Privacy Guard ("Secure Shell") →	supportsStandard
NETCONF →	transportProtocol
RFC 7539 →	useCase
HMAC →	usedFor