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harshajyotip0001
harshajyotip0001
January 13, 2025
Question

SFTP Functions 4.0.1 - compatibility with ssh-rsa algorithm

  • January 13, 2025
  • 1 reply
  • 0 views

We upgraded the plugin to 4.1.0 and while using the latest smart service '(SFTP) Get Remote folder Contents' replacing the deprecated smart service "Get Remote Directory Contents over SFTP", we got the below error:

"Algorithm negotiation fail: algorithmName=""server_host_key"" jschProposal=""ssh-ed25519,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,rsa-sha2-512,rsa-sha2-256"" serverProposal=""ssh-rsa"""

The same smart service (SFTP) Get Remote Folder Contents works fine with the Plugin version 3.0.3.

Is there a known resolution to this error?

1 reply

J
jitheshs0002
May 30, 2025

This plugin uses JSch library, which removed support for ssh-rsa. You will need to update your ssh keys to a stronger supported key type to continue using the latest version of the plugin.

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