Protecting SWF file with bytearray

Question

I'm developing a Flex application for a customer and I don't want others know my code using decompilers, I found a SWF protector(dcomsoft) that convert all codes to a byte arrays and the code becomes more complex for beginners programmers and I don't think it's enough for professionals.

Is it enough to do some obfuscating then protect the SWF?

Answer 1

Short answer - no.

Any compiled code can be de-compiled, obfuscated code can be reversed to normal (many decompilers do that automatically or have that option).

As long as it's on client side, the code is not secure. You can use the fancy tool, maybe it will take extra 30 minutes to decompile it, but the people who are interested to know how it works will be able to do so.