Yes, the ecdsa-sha2-nistp384
and ecdsa-sha2-nistp521
algorithms are also supported.
The complete list of supported algorithms can be found at https://www.rebex.net/sftp.net/features/ssh.aspx#ciphers
The algorithms can be enabled like this:
var client = new Sftp();
client.Settings.SshParameters.HostKeyAlgorithms |= SshHostKeyAlgorithm.ECDsaNistP384 | SshHostKeyAlgorithm.ECDsaNistP521;
client.Settings.SshParameters.KeyExchangeAlgorithms |= SshKeyExchangeAlgorithm.ECDiffieHellmanNistP384 | SshKeyExchangeAlgorithm.ECDiffieHellmanNistP521;
If the OS does not have native support for the ecdsa-sha2-nistp384
and ecdsa-sha2-nistp521
, the mentioned plugins has to be used.