Is there any way to control flash files content stored in local files against code tricks? If not directly in swf files so maybe in JAVA calling swf files? Really anybody can change local *.swf and make what he/she wants? Or is there only way to control the data sent back from local host to server (but it is very primitive and doesn't secure anything at all)?

The trick is for some of us so obvious that even ridicilous. I would suggest some crc check or more sofisticatated content check. Does anybody know any way to do that now?

No, currently there's no way to prevent localhost from modifying your swf at runtime. I'm suggesting two ways to improve the security in the end of my post, change the Flash player to prevent it and make it easier to obfuscate the Flash code. There's really nothing that Java can do to help the situation. You cannot even run the modern versions of Flash format inside a Java app. Crc check wouldn't work because you are dynamically changing the behaviour of a Flash app at runtime. Content check then, well it depends, but it would still be better to just change the Flash player so that the same domain security would apply to localhost as well.

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