Is it possible to pass secret key in applet parameters too ?
Yes, but once again it is NOT RECOMMENDED because you will expose your S3 settings to anyone loading the applet. So make sure to understand it before proceeding: Note that you can Base64 encode any parameter by enclosing it with [] chars. Base64 is not enryption (it could be reversed) but it’s more secure than plain text. We provide a base64 encoder/decoder service here.