Key exchange method (KEX)

wikipedia:Key exchange method

OpenSSH changelog

• OpenSSH 9.0 Aug 2022 Use the hybrid Streamlined NTRU Prime + x25519 key exchange method by default
• OpenSSH 8.5 03 March 2021 update/replace the experimental post-quantum hybrid key exchange method

• Added curve25519-sha256@libssh.org key exchange

Cisco IOS

show ip ssh

KEX Algorithms:diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1

Related terms

• KexAlgorithms directive

See also

• KEX, KexAlgorithms, Diffie–Hellman, PSK, Elliptic-curve Diffie–Hellman (ECDH)
• Public key cryptography, private key, public key, key length, ssh-keygen, ssh-keyscan, Root certificate, KEX, Generate a key
• SSH: ssh, TLS, .ppk, .pem, .crt, .pub, ED25519, Key exchange method (KEX), public key, private key, ssh -Q kex, IAMUserSSHKeys, known_hosts, ssh tunnel, Dropbear