Is X448 supported?

John Jiang <[email protected]> Fri, 28 Feb 2020 10:25:29 +0800
Newsgroups gmane.network.gnutls.general
Message-ID <CAJbO6CR7F4G=-TYG3PRyOGaLeeniwymexN-7MhdHnob-5ms7Tw@mail.gmail.com>
Hi,
Just want to confirm if X448 is supported by GnuTLS 3.6.10.

Used the below OpenSSL command to try to connect a GnuTLS server,
openssl s_client -tls1_2 -cipher ECDHE-RSA-AES128-GCM-SHA256 -groups X448
host:port
The server raised handshake error: No supported cipher suites have been
found.

But if specified X25519, it worked fine.

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