We also wish to prefer AES over Chacha/Poly, given the prevalence of hardware accelaration for the former.
Signed-off-by: Peter Müller peter.mueller@ipfire.org --- config/ssh/ssh_config | 2 +- config/ssh/sshd_config | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/config/ssh/ssh_config b/config/ssh/ssh_config index 86f123e28..d5f63f315 100644 --- a/config/ssh/ssh_config +++ b/config/ssh/ssh_config @@ -10,7 +10,7 @@ Host *
# Only use secure crypto algorithms KexAlgorithms sntrup761x25519-sha512,sntrup761x25519-sha512@openssh.com,mlkem768x25519-sha256,curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256 - Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr + Ciphers aes256-gcm@openssh.com,aes256-ctr,chacha20-poly1305@openssh.com,aes192-ctr,aes128-gcm@openssh.com,aes128-ctr MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,umac-128@openssh.com
# Always visualise server host keys (helps to identify key based MITM attacks) diff --git a/config/ssh/sshd_config b/config/ssh/sshd_config index 421416705..e338f8cef 100644 --- a/config/ssh/sshd_config +++ b/config/ssh/sshd_config @@ -21,7 +21,7 @@ MaxStartups 5
# Only allow safe crypto algorithms KexAlgorithms sntrup761x25519-sha512,sntrup761x25519-sha512@openssh.com,mlkem768x25519-sha256,curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256 -Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr +Ciphers aes256-gcm@openssh.com,aes256-ctr,chacha20-poly1305@openssh.com,aes192-ctr,aes128-gcm@openssh.com,aes128-ctr MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,umac-128@openssh.com
# Only allow cryptographically safe SSH host keys (adjust paths if needed)