Secure Shell (SSH) Protocol Parameters
2005-06-02
2025-01-21
Key Exchange Method Names
curve25519-sha256
SHOULD
diffie-hellman-group14-sha256
SHOULD
diffie-hellman-group1-sha1
MUST NOT
Encryption Algorithm Names
chacha20-poly1305@openssh.com
OpenSSH
SHOULD
aes128-ctr
SHOULD
aes256-ctr
SHOULD
3des-cbc
MUST NOT
MAC Algorithm Names
hmac-sha2-256
SHOULD
hmac-sha2-512
SHOULD
hmac-sha1
SHOULD NOT
Compression Algorithm Names
none
MUST
zlib
MAY