FTP/VT SSH Support List
Secure Shell (SSH) is a widely used Transport Layer Protocol to secure connections between clients and servers. The SSH handshake is a process in the SSH protocol responsible for negotiating initial trust factors to establish a secure channel between an SSH client and an SSH server for an SSH connection. The ciphers, algorithms, and key format support protocols for FTP/VT SSH are listed below.
FTP/VT SSH Support List
Ciphers:
Default list (in order from most to least preferable):
chacha20-poly1305@openssh.com (priority of chacha20-poly1305 may vary depending upon CPU and/or optional binding availability)
aes128-gcm
aes128-gcm@openssh.com
aes256-gcm
aes256-gcm@openssh.com
aes128-ctr
aes192-ctr
aes256-ctr
3des-cbc
aes256-cbc
aes192-cbc
aes128-cbc
Compression algorithms:
Default list (in order from most to least preferable):
none
zlib@openssh.com
zlib
(H)MAC algorithms:
Default list (in order from most to least preferable):
hmac-sha2-256-etm@openssh.com
hmac-sha2-512-etm@openssh.com
hmac-sha1-etm@openssh.com
hmac-sha2-256
hmac-sha2-512
hmac-sha1
hmac-md5
hmac-sha2-256-96
hmac-sha2-512-96
hmac-ripemd160
hmac-sha1-96
hmac-md5-96
Key exchange algorithms:
Default list (in order from most to least preferable):
curve25519-sha256 (node v14.0.0+)
curve25519-sha256@libssh.org (node v14.0.0+)
ecdh-sha2-nistp256
ecdh-sha2-nistp384
ecdh-sha2-nistp521
diffie-hellman-group-exchange-sha256
diffie-hellman-group14-sha256
diffie-hellman-group15-sha512
diffie-hellman-group16-sha512
diffie-hellman-group17-sha512
diffie-hellman-group18-sha512
diffie-hellman-group-exchange-sha1
diffie-hellman-group14-sha1
diffie-hellman-group1-sha1
Server host key formats:
Default list (in order from most to least preferable):
ssh-ed25519 (node v12.0.0+)
ecdsa-sha2-nistp256
ecdsa-sha2-nistp384
ecdsa-sha2-nistp521
rsa-sha2-512
rsa-sha2-256
ssh-rsa
ssh-dss