forum.vdsworld.com

[vtol]

I been wondering how to keygen my program, and or if thats the best way to set it up for shareware, and is it hard to get shareware on your program.

[tim6389]

vtol777 - best way is to uses blowfish AND have it added to that meaning

take the ecryted number then add like then number 5 to it. have it do some math with the encryted number...


there is a post about a keygen code

NOTE: keygen code is very basic...but it should give ya a good start..

http://forum.vdsworld.com/viewtopic.php?t=1359&highlight=keygen

however i think that best thing to do is have 2 version of your s/w meaning demo version won't have the function...like a bought version has...this way if demo version won't have the code for them to "play" with it...if ya follow what i mean...

[tim6389]

other link for a way to "key" your porgram


[url]
http://forum.vdsworld.com/viewtopic.php?t=164&highlight=keygen [/url]

[vtol]

Yeah I been wondering if that would work Tim, having Demo that would just do it about 3 times, then stop working. But the thing is the program I made, 3 times is all they need every couple months, do you think a time bomb would work with your demo idea, and would I need to write something secretly in an unidentifiable way in the registry to see if they re-installed the demo to get the 3 time use over and over?
Thanks for your help by the way..

[tim6389]

here is other link


[url]
http://forum.vdsworld.com/viewtopic.php?t=1361
[/url]

here here is a link for code to run only so many times.....

[url]
http://forum.vdsworld.com/viewtopic.php?t=1365&highlight=keygen
[/url]

yes a timebomb could be added to the code HOWEVER don't uses registry to store info that is the first place people look have it store info in a fake file like dll file or whatever. BUT if your program comes with a setup.exe and if it install this way you will have to make it so when they un-install it, IT WON"T del the file that holds the info...if ya follow what i mean

[FreezingFire]

I would suggest making a very complex mathematical algorithm for your
program that involves not only numbers but alphabetical characters and
symbols also.

There's also several alternatives to making a secure method in VDS. You
can use products that can do this type of time/use-limiting thing securely
without much effort.

I don't think you'll get much secure source code since everyone codes
keygen methods in their own style and they don't want to compromise
their software, but I hope this helps.

Also, just another note: Don't spend all your efforts on time/use-limiting
code, because anyone determined enough will use tools and methods to
get past your code by using file monitors or registry monitors.

[tim6389]

FreezingFire - that is what i mean about having it do "some math" but i like the way you said it...heheheheh

[tim6389]

note: the link that i posted about the keygen i was playing with DON"T uses the same method like i did for making keys...what i posted IS JUST A starting point....have it also do "very complex mathematical algorithm " like FF said to....

[FreezingFire]

One more thing to remember: I do believe VDS 5 exe's have some basic
anti-debugger protection built in

[tim6389]

if not uses the dsc that is out there here is the link





[url]
http://www.vdsworld.com/index.php?page=download&fileid=308

[/url]

edit - fixed link sorry about that

[tim6389]

vtol777 - i hope the info here will help you get started

[vtol]

So its best not to use the scrambled Math way, just make Demo, right?

[tim6389]

i would make a demo that don't have all the fuction in it....when the user buys it then they would get the FULL version....this way the demo can't be bypassed cuase the fuction is not in there at all


if this would work for what you need this is how i would do it....

[vtol]

Yeah, sounds good, I also believe that a program is like buying a Monopoly table game from a store, its for the whole family, not just 1 person in the family. Should be able to move it any where in the household for any member of that household. I don't think I'll ever see see beyond that concept.
Thanks again for all your help..

[FreezingFire]

This method however will make it really hard to distribute updates to
registered users.