Error with Private Key authentication type in SFTP Receiver Channel with PGP Encryption

Hi All,

I am working on SOAP Proxy to SFTP receiver with PGP encryption.

While placing the file into target directory with authentication method as  Private Key I am getting the below error. where as it is working if I go with Password type authentication.

error Log:

Transmitting the message to endpoint <local> using connection SOAP_http://sap.com/xi/XI/System failed, due to: com.sap.engine.interfaces.messaging.api.exception.MessagingException: javax.resource.ResourceException: java.lang.UnsupportedOperationException: received authentication request from server which could not be processed: destination=varianmd@papidadb.cis.varian.com; name=; instruction=prompt=Password:

Can you please help me with this.

Appreciated the quick reply.

Thanks,

Gayathri.