search

sshnet / SSH.NET

SSH.NET is a Secure Shell (SSH) library for .NET, optimized for parallelism.
http://sshnet.github.io/SSH.NET/
MIT License
4.01k stars 932 forks source link

Any plan for key exchange RSA-based? #1472

Open valben-melair opened 2 months ago

valben-melair commented 2 months ago

Hi,

From the list of Key Exchange Method, it only supports the following:

curve25519-sha256 curve25519-sha256@libssh.org ecdh-sha2-nistp256 ecdh-sha2-nistp384 ecdh-sha2-nistp521 diffie-hellman-group-exchange-sha256 diffie-hellman-group-exchange-sha1 diffie-hellman-group16-sha512 diffie-hellman-group14-sha256 diffie-hellman-group14-sha1 diffie-hellman-group1-sha1

Do you have any plan for RSA?

Thanks

Rob-Hague commented 2 months ago

Specifically which key exchange algorithms do you refer to? RSA is typically not used for key exchange. The library already supports RSA for host and client authentication.

vpgalon16 commented 1 month ago

Thanks Rob.

We get this error below:

The connection was closed by the server: FlowSshTransport: no mutually supported host key algorithm. Local list: RSA/sha2-512,RSA/sha2-256. Remote list: RSA,DSA,Ed25519,ECDSA/nistp256,ECDSA/nistp384,ECDSA/nistp521. (KeyExchangeFailed).\r\nclientRequestId: 7627ab80-c3bc-4b94-9a69-870d99bada27

Can you explain the meaning of this error?

Rob-Hague commented 1 month ago

I'm guessing you are on a version before 2023.0.0? 2023.0.0 added support for the RSA/sha2 host key algorithms which appear to be missing based on the message

vpgalon16 commented 1 month ago

Thanks for a quick response.

Btw, i'm getting this error via logic apps (see screenshot below), do you know how to align my logic app sftp connector to the latest version of connector?

image
Rob-Hague commented 1 month ago

Sorry, I've not used logic apps before