SFTP Connection Fails with .pub RSA Key File—How to Use SSH Keys in Decisions SFTP Steps?

RichterBell

We’re trying to update our SFTP connection in Decisions after our client changed their authentication method. They provided us with an RSA public key (.pub file), but we’re having trouble configuring the SFTP step to use this file for authentication. How should we set up the SFTP connection with the provided .pub file, and what file format does Decisions require for SFTP authentication?

MalikBackman_Decisions

Hello,

The SFTP step in Decisions requires a private key (typically in .pem format) for authentication, not just a public key (.pub file). If your client only provided a .pub file, you’ll need to request the corresponding private key from them, or have your IT team generate a compatible .pem private key. Once you have the private key, you can configure the SFTP step in Decisions to use it for authentication.

Reference the following documentation for step-by-step setup: Download File with SFTP/FTP

For more on supported SSH ciphers and key formats, see: SSH core - Rebex SFTP - Rebex.NET

If you only have the .pub file, you won’t be able to authenticate—Decisions requires the private key for SFTP connections.

Hope this helps!