I just found Acrosync and tried to use the beta. However, I got stuck with entering (copy-paste) the SSH private key to the text area that opens once the "public key"-checkbox has been checked and I click "Remote directory" to enter the remote directory.
The error messages says:
"Authentication by public key failed: unable to extract public key from private key file: Unable to open private key file"
Which is kind of weird since the UI asked me to enter the private key content, not the its file name. So my question is, which format the private key should be? OpenSSH RSA key? Putty key format? Something else? I tried both Putty and OpenSSH format without success.
I am running Win 8.1 64 bit if that matters.