[casual_games] Current advice on SWF encryption?

[Matthew Ford]

Thanks Austin, those are good questions.

1. This is my chief concern: I want to avoid someone from stealing my game,
pulling out my imbedded ads, perhaps putting in their own, and hosting it or
posting it on some other game portal.

2. I'm only mildly concerned about my source code being used for any other
purpose-- I don't write very good code yet. :)

3. I'm not concerned about multiplayer cheating.

4. I'm not concerned about exposure of any trade secrets in the source.

True enough, nothing can be fully protected. I just hope to become a tougher
target than seems worth the effort to crack. 

Thanks for any help!

* * *
Matthew Ford - matthew at fordfam dot com - http://www.fordfam.com/matthew 


-----Original Message-----
From: casual_games-bounces at igda.org [mailto:casual_games-bounces at igda.org]
On Behalf Of Austin Haas
Sent: Monday, 9 March 2009 12:14 AM
To: IGDA Casual Games SIG Mailing List
Subject: Re: [casual_games] Current advice on SWF encryption?


It might help if you said what your goals were. For instance,

1. Are you trying to keep someone from stealing your game and hosting it on
their site?
2. Do you want to prevent someone from using your source code?
3. Do you want to prevent people from cheating in a multiplayer game?
4. Are you trying to protect some secret embedded in the source code?

Those problems may have different solutions.

FWIW, you can never fully protect an online playable swf from
decompilation/dissassembly.

-austin

-- 
Austin Haas
Pet Tomato, Inc.
http://pettomato.com

On Sun Mar 08 17:13 , Matthew Ford wrote:

> *crickets*

> 

>  

> 

> Sorry to repeat my question but there must be somebody who has a bit of

> advice to give on SWF decryption? There are many packages to choose from

and

> I can't tell which ones are good, so any testimonials from hands-on

> experience would be helpful. Again, apologies for the repeat, but this

list

> is my best resource for this kind of question.

> 

>  

> 

> From: Matthew Ford [mailto:matthew at fordfam.com] 

> Sent: Friday, 6 March 2009 3:48 PM

> To: (casual_games at igda.org)

> Subject: Current advice on SWF encryption?

> 

>  

> 

> Hello all-been on the list for years and I think this may be my 4th post

as

> I am mostly an absorber of advice, not an emitter yet. I am an indie

> developer, ex-game-industry designer and producer. See more at

> http://www.digitalcream.com.au/blog/ , http://twitter.com/MatthewMFord,

etc.

> 

>  

> 

> I am very soon going to be opening up private alpha testing of my Flash

> game, Taboo Snaps, and it's time to look at SWF encryption. I had heard on

> this list that www.amayeta.com was good but elsewhere I read that it has

> been cracked. So I'd appreciate any advice on the current best encryption

> software and advice for keeping it hard to crack.

> 

>  

> 

> I am currently sitelocking the game (swf checks it own loaderInfo.url and

> dies if it's not my home domain) but eventually I will want the swf to be

> spread far and wide-it has imbedded ads and will revert to a demo mode if

> not on a blessed domain. So though sitelocking is some protection, of

course

> if it is decrypted that sitelock can be taken out.

> 

>  

> 

> I also have the game load XML files from my home domain and do sitelocking

> for that with my crossdomain.xml, but again, it can be got around once

> decrypted.

> 

>  

> 

> Please catch me up on the latest greatest advice on encryption software

and

> techniques, and of course let me know if any of the above is nonsensical!

> 

>  

> 

> Kind regards,

> 

> Matthew Ford

> 

> Matthew at fordfam dot com

> 

> http://www.digitalcream.com.au/blog/

> 

> http://twitter.com/DCgames

> 

> http://twitter.com/MatthewMFord

> 

> http://www.fordfam.com/matthew 

> 



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