Cosmin,
I'm going to throw my .02 in on this one. I designed a multi use
security system using ASProtect and a custom component I created. It enabled
the key to store multiple lines of options and data. Something to the effect
of...
User Name
2 //Number of Users allowed
Pro //Mode to run in.
127.0.0.1
Basically, this data was encrypted with ASProtect and stored in a simple
text file. On run ASProtect would decrypt the data and the custom component
would decide which options to turn on in the program. Without the file
present the program wouldn't run. If the IP of the machine wasn't in the
decrypted file, it wouldn't run. (This was a server based internet only app)
Etc...
If the user needed a new key file, they had to contact us.
An addition that was never used was a date downloaded/date to expire entry.
If this sounds like something you would be interested in, I could remove the
company specific info and send it to you. You would need a copy of ASProtect
to make it work though.
HTH,
Jeff Young
[EMAIL PROTECTED]
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Cosmin Prund
Sent: Friday, March 24, 2006 1:43 PM
To: Moderated discussion list about programming with Borland's Delphi
Subject: LITE security / licensing aid
Hello everyone!
I'm working on securing some of my applications right now. I've managed to
get "on/off" security working (ie: you're ether licensed or you're not
licensed) but now I'd like to add a few tones of "gray". Essentially I'd
like to add the ability to delay activating the product for a while. This
requires some storage for number of "runs" or "expiry date".
I KNOW there's no real way of securing any piece of data on a client's
system but I'm not really facing real crackers so a "so/so" solution would
work. The thing I'm mostly afraid is the situation where someone would
stumble across my "data" and simply delete it! That would make my
application think it was freshly installed and provide the client with a
fresh "free" period! That's not good.
I mostly think I know the solution: I just need to write the same data into
multiple places so the user would not find them all. But then comes the
question: Where exactly do I write this data so the user would NOT consider
I'm invading his space?
I'm considering:
1) My "Program Files" folder. This is very obvious and the user is likely to
find it.
2) The "Application Data" folder for the current user. This doesn't exist on
Win9X machines!
3) My registry key (under the HKCU\Software\MyCompany key). This would be
easy to spot too.
4) Some other, better, yet polite hiding place :)
Anyone been here before?
Anyone has other good ideas?
Thanks for your input!
Cosmin Prund
_______________________________________________
Delphi mailing list -> [email protected]
http://www.elists.org/mailman/listinfo/delphi
_______________________________________________
Delphi mailing list -> [email protected]
http://www.elists.org/mailman/listinfo/delphi
