SFTP connection with ED25519
Hi,
We are trying to connect to following SFTP server: sftp-transparency.entsoe.eu
This used to work fine but fails after an update of the mentioned server. We noticed they updated their server and now only offer ssh-ed25519 as host key algorithm. We tried with following code (and other attempts):
using(var client = new Sftp())
{
//tried without and with this line:
client.Config.HostKeyAlgorithms = SecureShellHostKeyAlgorithm.ED25519;
client.Connect(Host, Config.SourcePort);
}
All attempts however result in following exception when calling the Connect method:
*ComponentPro.Net.SftpException: 'The client and the server have no common host key algorithm.'*
On the page https://doc.componentpro.com/ComponentPro-Sftp/ssh-ciphers we saw that a plugin is required? Where can this plugin be found?
Thank you,
Klaus Vancamelbeke
asked 4/27/2022 8:35:11 AM
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Hi KlausVancamelbeke,
Please refer to
https://github.com/CryptoManiac/Ed25519
https://docs.microsoft.com/en-us/dotnet/api/system.security.cryptography.ecdsa?view=net-6.0
https://github.com/sshnet/SSH.NET
answered 4/27/2022 11:33:17 AM
| Thanks. While having looked at all three links, it leaves me clueless how to incorporate any of these as a plugin in Componentpro.Sftp? A sample on how to configure an Sftp instance to be able to connect to sftp-transparency.entsoe.eu would be great. KlausVancamelbeke 4/28/2022 9:57:48 AM | |
| We are also have a similar issue with connecting to a SFTP server that uses ed25519. Please advise. Chris Slattery 8/1/2023 2:01:10 PM |