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Added policy for hardened OpenSSH v8.4.

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Joe Testa 2020-09-27 17:04:43 -04:00
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policies/openssh_8_4.txt Normal file
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#
# Official policy for hardened OpenSSH v8.4.
#
name = "Hardened OpenSSH v8.4"
version = 1
# RSA host key sizes.
hostkey_size_rsa-sha2-256 = 4096
hostkey_size_rsa-sha2-512 = 4096
# Group exchange DH modulus sizes.
dh_modulus_size_diffie-hellman-group-exchange-sha256 = 2048
# The host key types that must match exactly (order matters).
host keys = rsa-sha2-512, rsa-sha2-256, ssh-ed25519
# Host key types that may optionally appear.
optional host keys = sk-ssh-ed25519@openssh.com, ssh-ed25519-cert-v01@openssh.com, sk-ssh-ed25519-cert-v01@openssh.com, rsa-sha2-256-cert-v01@openssh.com, rsa-sha2-512-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
# 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