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OpenSSH: Add alias name for sntrup761x25519-sha512 key exchange

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This makes sure OpenSSH connections make use of this post-quantum
key exchange whenever possible, even if one peer still running
OpenSSH 9.8 or older.

Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
This commit is contained in:
Peter Müller
2024-09-21 15:29:59 +00:00
committed by Michael Tremer
parent f5114d29f2
commit 9e4af5616a
2 changed files with 2 additions and 2 deletions
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2
config/ssh/ssh_config
View File

@@ -9,7 +9,7 @@ Host *
UseRoaming no
# Only use secure crypto algorithms
KexAlgorithms sntrup761x25519-sha512,mlkem768x25519-sha256,curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256
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
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

2
config/ssh/sshd_config
View File

@@ -20,7 +20,7 @@ LoginGraceTime 30s
MaxStartups 5
# Only allow safe crypto algorithms
KexAlgorithms sntrup761x25519-sha512,mlkem768x25519-sha256,curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256
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
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