Storage FTP with keyfile access (.pem)

I want to configure FTP storage, but my ftp is using a key_access.pem file. I can put the user info, but the password is not a string, its an RSA PRIVATE KEY. Can I do this with ASpose?

@mustramit

I am afraid that, currently, we do not support PEM files to configure FTP storage. We have logged a feature request(STORAGE-169) for the requirement. We will notify you as soon as we implement the feature.