.net - Exception when connecting to SFTP server using WinSCP C# code - PrivateKeyPassphrase is set, but not SshPrivateKeyPath and TlsClientCertificatePath

Question

I am building an application which uses C# code to connect to an SFP server. The other party says that they do not provide key files. When connecting to their SFTP server via FileZilla only using host + user + passphrase + port, I successfully connect (after accepting the host key that appears on the pop up window).

However when running the code I keep getting the below exception:

SessionOptions.PrivateKeyPassphrase is set, but neither SessionOptions.SshPrivateKeyPath nor SessionOptions.TlsClientCertificatePath is set.

I am using WinSCP.SessionOptions to build the connection.

How can establish a connection without having to point to a .ppk file as FileZilla does?

Many thanks

Answer 1

You are not connecting with the user and passphrase, but with a password.

So you need to set SessionOptions.Password property, not SessionOptions.PrivateKeyPassphrase.

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The passphrase is indeed used in combination with private keys only.