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Dec 22nd, 2009, 03:47 PM
#1
PowerPoster
Re: Anti Piracy Techniques Questions
I don't have any proper expertise in the matter (I'm sure RhinoBull is nodding his head vigorously as he reads this :-P) but I've had a play about with control systems in my programs, and the method I used was to have important strings in the data encrypted and for a key to be required to decrypt it...the key itself would be different for everyone as the program then scrambles the key you input based on a value taken from the computer (hard drive name, computer name, that sort of thing) and the unscrambled key would be used to decrypt those important strings.
As your program has to be online to be used though, perhaps a server/client auth system would be better, and the authentication data would be based on the above plus the current hour and date on the client's PC...the server then sends the right data for the client to use for that hour and an hour later it needs to reauth (or every minute, every day, it's entirely up to you :-))
I am considering writing a bit of code which would encrypt and hard-wire the encryption key into the program and then compile the project so that everyone who gets a copy has a slightly different version with different methods, so if it did get out then I'd know who it was...one day I will do it, probably...one day!
Well, everyone else has been doing it :-)
Loading a file into memory QUICKLY - Using SendKeys - HyperLabel - A highly customisable label replacement - Using resource files/DLLs with VB - Adding GZip to your projects
Expect more to come in future
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Dec 22nd, 2009, 03:51 PM
#2
Thread Starter
Addicted Member
Re: Anti Piracy Techniques Questions
 Originally Posted by smUX
I don't have any proper expertise in the matter (I'm sure RhinoBull is nodding his head vigorously as he reads this :-P) but I've had a play about with control systems in my programs, and the method I used was to have important strings in the data encrypted and for a key to be required to decrypt it...the key itself would be different for everyone as the program then scrambles the key you input based on a value taken from the computer (hard drive name, computer name, that sort of thing) and the unscrambled key would be used to decrypt those important strings.
As your program has to be online to be used though, perhaps a server/client auth system would be better, and the authentication data would be based on the above plus the current hour and date on the client's PC...the server then sends the right data for the client to use for that hour and an hour later it needs to reauth (or every minute, every day, it's entirely up to you :-))
I am considering writing a bit of code which would encrypt and hard-wire the encryption key into the program and then compile the project so that everyone who gets a copy has a slightly different version with different methods, so if it did get out then I'd know who it was...one day I will do it, probably...one day!
That sounds like a good idea, at least we'd know the cracker or leaker.
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Dec 22nd, 2009, 04:01 PM
#3
Re: Anti Piracy Techniques Questions
Originally Posted by cmmorris1
That sounds like a good idea, at least we'd know the cracker or leaker.
Hmmm.. but also consider the pain you would have to take to complie it separately for each of those 10,000 customers 
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Dec 22nd, 2009, 04:03 PM
#4
Thread Starter
Addicted Member
Re: Anti Piracy Techniques Questions
Originally Posted by Pradeep1210
Hmmm.. but also consider the pain you would have to take to complie it separately for each of those 10,000 customers
Well that would be done server side right? So how hard would it be?
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