# # Official policy for hardened OpenSSH on Ubuntu 18.04 LTS. # client policy = true name = "Hardened Ubuntu Client 18.04 LTS" version = 1 # The host key types that must match exactly (order matters). host keys = ssh-ed25519, ssh-ed25519-cert-v01@openssh.com, rsa-sha2-256, rsa-sha2-512, ssh-rsa-cert-v01@openssh.com # The key exchange algorithms that must match exactly (order matters). key exchanges = curve25519-sha256, curve25519-sha256@libssh.org, diffie-hellman-group16-sha512, diffie-hellman-group18-sha512, diffie-hellman-group-exchange-sha256, ext-info-c # The ciphers that must match exactly (order matters). ciphers = chacha20-poly1305@openssh.com, aes256-gcm@openssh.com, aes128-gcm@openssh.com, aes256-ctr, aes192-ctr, aes128-ctr # The MACs that must match exactly (order matters). macs = hmac-sha2-256-etm@openssh.com, hmac-sha2-512-etm@openssh.com, umac-128-etm@openssh.com