List of algorithms for SSH2 connections

These algorithms define the supported methods for key exchange, message authentication, encryption, and key signatures in SSH2 connections.

• Key exchange algorithm:

  ecdh-sha2-nistp256
  ecdh-sha2-nistp384
  ecdh-sha2-nistp521
  curve25519-sha256
  curve25519-sha256@libssh.org
  diffie-hellman-group-exchange-sha256
  diffie-hellman-group16-sha512
  diffie-hellman-group14-sha256
  diffie-hellman-group18-sha512
  diffie-hellman-group-exchange-sha1
  diffie-hellman-group1-sha1
  diffie-hellman-group14-sha1
  ext-info-c
  kex-strict-c-v00@openssh.com

• HMAC algorithm:

  sha2-256-etm@openssh.com
  hmac-sha2-512-etm@openssh.com
  hmac-sha1-etm@openssh.com
  hmac-sha2-256
  hmac-sha2-512  

• Encryption algorithm:

  8-ctr
  aes128-gcm@openssh.com
  aes128-cbc
  chacha20-poly1305@openssh.com
  3des-cbc
  blowfish-cbc
  aes192-ctr
  aes192-cbc
  aes256-gcm@openssh.com
  aes256-ctr
  aes256-cbc
  rijndael128-cbc
  rijndael192-cbc
  rijndael256-cbc
  rijndael-cbc@lysator.liu.se
  cast128-cbc

• Key signature algorithm:

  a2-512
  rsa-sha2-256
  ssh-rsa
  ssh-dss
  ssh-ed25519
  ecdsa-sha2-nistp521
  ecdsa-sha2-nistp384
  ecdsa-sha2-nistp256