Protection in Projectors

Hi Danny, it seems like no one else will reply, I thought
that there were
  more people using projectors out there.

  >This all sounds like overkill to me - you're going to
end up locking out 
  >people who have a legitimate right to use the
software. What exactly is it 
  >that you think they might be doing? How is your
software protected in the 
  >first place? How do they register it? (Is it
registered with a key? Is that 
  >key stored in the registry somewhere? etc). Does it
have an online element?

  I just wanted to be sure that it was at least a bit hard
to crack, and I wanted
  to learn about security in projectors.
  Currently after the user has payed a license an automatic
license key is sent
  to the user's email. That license key is generated
accoding to some information
  about the user by a php script. After that, the user can
put his name and serial in
  the soft and it just unlocks and starts running as full
version. It's  not super secure because it just generate 2
different files with the  license inside. Someone
  could just copy the files to his folder and he will have a
full  version. I don't know how to fight against that. I
don't know if use  something like an online activation as
Norton antivirus does. If you  know of a good way please let
me know. Also I don't know much about how  to modify the
register and if it's a good method either.

  >on checkForHack
  >global myCommunicationObject
  >tCheck=myCommunicationObject.amIOK()
  >end

  Thanks for that idea, I added that to my code a bit
modified to work better.
  I don't know if someone can get the handlers name or
properties of my 
  communication object? Hope not!

  BTW, I tried using Armadillo to protect my projectors but
sadly it doesnt work in 
  any way. If someone has any experience about it please let
me know!

  Minyer

Danny Kodicek <dragonwell-spring.co.uk>
wrote:  
> Hi! it's me again
>
>  I'm wishing to know which things should one protect in
the case of
>  projectors, I'm rather newbie to the projectors world,
I never used them
>  before.
>
>  Here's what I did until now:
>
>  I'm checking for files whose name contains .INI and in
case of finding
>  one, I call QUIT
>
>  The same for filenames containing the words, patch,
crack, serial, keygen
>
>  In case I find too much .EXE files I also quit the
projector.

This all sounds like overkill to me - you're going to end up
locking out 
people who have a legitimate right to use the software. What
exactly is it 
that you think they might be doing? How is your software
protected in the 
first place? How do they register it? (Is it registered with
a key? Is that 
key stored in the registry somewhere? etc). Does it have an
online element?

If you're concerned about hacking using ini files, then just
setting the 
debugplaybackenabled to false should be enough. There's
nothing else that I 
think an ini file is particularly useful for.

>  After that it just does  go to movie game.dcr
>
>  I'm using 5 different .DCR files in my game. Should I
use .dcr instead? I 
> don't
>  know what the difference is, and which one I should
use in this case.

This is where you're going to find the more serious security
holes. Each dcr 
file is self-contained, and someone else could open them up
as an LDM and 
get all kinds of info from them. So the most important thing
is to ensure 
that each dcr file contains its own security. One simple
method might be to 
have the movie not work unless your global communication
object is 
initialised. Try this:

on checkForHack
global myCommunicationObject
tCheck=myCommunicationObject.amIOK()
end

If the object is not initialised, this will bomb out with an
error and the 
movie won't work. It's not perfect, but it should do the
job.

Note that the *only* thing that's secure in a dcr is the
scripts. All the 
media are available to be hacked. And incidentally, dcr's
are more secure 
than dxr's: variable names and a few other details are
visible in the .dxr 
file.

Danny 

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Protection in Projectors

Thread: Protection in Projectors