From: "Peter Müller" <peter.mueller@ipfire.org>
To: development@lists.ipfire.org
Subject: [PATCH v2 3/4] OpenSSH: Add alias name for sntrup761x25519-sha512 key exchange
Date: Sat, 21 Sep 2024 15:29:59 +0000 [thread overview]
Message-ID: <20240921153000.706916-3-peter.mueller@ipfire.org> (raw)
In-Reply-To: <20240921153000.706916-1-peter.mueller@ipfire.org>
[-- Attachment #1: Type: text/plain, Size: 2102 bytes --]
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(a)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 5a9ad85c5..86f123e28 100644
--- a/config/ssh/ssh_config
+++ b/config/ssh/ssh_config
@@ -9,7 +9,7 @@ Host *
UseRoaming no
# Only use secure crypto algorithms
- KexAlgorithms sntrup761x25519-sha512,mlkem768x25519-sha256,curve25519-sha256,curve25519-sha256(a)libssh.org,diffie-hellman-group-exchange-sha256
+ KexAlgorithms sntrup761x25519-sha512,sntrup761x25519-sha512(a)openssh.com,mlkem768x25519-sha256,curve25519-sha256,curve25519-sha256(a)libssh.org,diffie-hellman-group-exchange-sha256
Ciphers chacha20-poly1305(a)openssh.com,aes256-gcm(a)openssh.com,aes128-gcm(a)openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
MACs hmac-sha2-512-etm(a)openssh.com,hmac-sha2-256-etm(a)openssh.com,umac-128-etm(a)openssh.com,hmac-sha2-512,hmac-sha2-256,umac-128(a)openssh.com
diff --git a/config/ssh/sshd_config b/config/ssh/sshd_config
index 9229b6518..421416705 100644
--- a/config/ssh/sshd_config
+++ b/config/ssh/sshd_config
@@ -20,7 +20,7 @@ LoginGraceTime 30s
MaxStartups 5
# Only allow safe crypto algorithms
-KexAlgorithms sntrup761x25519-sha512,mlkem768x25519-sha256,curve25519-sha256,curve25519-sha256(a)libssh.org,diffie-hellman-group-exchange-sha256
+KexAlgorithms sntrup761x25519-sha512,sntrup761x25519-sha512(a)openssh.com,mlkem768x25519-sha256,curve25519-sha256,curve25519-sha256(a)libssh.org,diffie-hellman-group-exchange-sha256
Ciphers chacha20-poly1305(a)openssh.com,aes256-gcm(a)openssh.com,aes128-gcm(a)openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
MACs hmac-sha2-512-etm(a)openssh.com,hmac-sha2-256-etm(a)openssh.com,umac-128-etm(a)openssh.com,hmac-sha2-512,hmac-sha2-256,umac-128(a)openssh.com
--
2.39.5
next prev parent reply other threads:[~2024-09-21 15:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-21 15:29 [PATCH v2 1/4] OpenSSH :Update to 9.9p1 Peter Müller
2024-09-21 15:29 ` [PATCH v2 2/4] OpenSSH: Add ML-KEM x X25519 hybrid key exchange Peter Müller
2024-09-21 15:29 ` Peter Müller [this message]
2024-09-21 15:30 ` [PATCH v2 4/4] OpenSSH: Order symmetric ciphers by strength Peter Müller
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