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Only enable ChaCha cipher (#412)

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* Only enable ChaCha cipher

* Add back a few ciphers for compatability
This commit is contained in:
Jauder Ho 2017-04-17 20:17:40 -07:00 committed by Dan Guido
parent fa5a956193
commit 5b2e13d18f
1 changed files with 5 additions and 7 deletions
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12
roles/security/templates/sshd_config.j2
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@ -45,10 +45,8 @@ HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
# Use only modern ciphers
KexAlgorithms curve25519-sha256@libssh.org,ecdh-sha2-nistp521,ecdh-sha2-nistp384,ecdh-sha2-nistp256
Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com
MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com
# TODO: I haven't seen anyone review these yet
# HostKeyAlgorithms ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519
# TODO: I haven't seen anyone review these yet
# PubkeyAcceptedKeyTypes ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519
KexAlgorithms curve25519-sha256@libssh.org,ecdh-sha2-nistp256
Ciphers chacha20-poly1305@openssh.com,aes128-gcm@openssh.com
MACs hmac-sha2-256-etm@openssh.com
HostKeyAlgorithms ssh-ed25519,ecdsa-sha2-nistp256
# PubkeyAcceptedKeyTypes accept anything