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GeoTrail

Uhm, just me again.
I want to make a keygenerator program that I also want to embedd into my program.

What I would like to do is to take a users email address and turn it into a serial. I've seen this done in alot of other programs and really like this system.

Could anyone help me with this?

Also, and alittle simpler, how can I check if a file exists?
Let's say I wanna check if filename.txt exists in @path(%0) and pass the result to a variable... Any help guys?

Oh yeah, one more thing. If I create a text object and types in some info in it like this:

Programname
Version
etc etc
email
website

is it possible to add that into one text object, at the same time make the email and website links to open in browser and the email app?

PGWARE · **Web Host** Joined: 29 Dec 2001 Posts: 1567

An easy way to make a keygenerator is to take the @asc() ascii value of each character one at a time (in this case an email address) and then output a set of numbers which represent that email address. For instance the output would be something like: 24259283240234 which represent the ascii equivelent of the email address. However this is not very safe and a crack/hacker would figure this out very very quickly. You can perform some mathmatical functions on that output such as multiplying it by 9 or another set of numbers then doing more math on it to modify it's output.

But a more safe and easy way is by using encryption as a way to protect your serials/keys, there are examples here on the forum on how to use a vds made encryption http://www.vdsworld.com/archive/index.php?page=topic&board=3&topic=57 and http://www.vdsworld.com/archive/index.php?page=topic&board=3&topic=107

Or you can take a look at the blowfish extension (high level encryption), and the vdsinout extension (basic encryption).

As for finding if a file exists use the following code:

GeoTrail · Posted: Fri Feb 21, 2003 7:29 am Post subject:

Thanks alot for your help Smile

I really like the one about the ascii values and doing math on the result Smile

About the file exist, do I have to specify the full path even if the file is in the same dir as the program?

GeoTrail · Posted: Fri Feb 21, 2003 8:10 am Post subject:

Oops, sorry, forgot to respond to the text thing.
No, that's not what I ment.
If I add a dialog right? and then add a text object.
The I write some text in the text object. Is it possible to make some of the text into links? Or to have action function?

Damn, I feel stupid Laughing

Here is what I got so far with the ascii conertion thingy

Dr. Dread · Posted: Fri Feb 21, 2003 8:34 am Post subject:

Dr. Dread · Posted: Fri Feb 21, 2003 8:40 am Post subject:

GeoTrail · Posted: Fri Feb 21, 2003 8:42 am Post subject:

Nice one.
Thanks alot Dr. Dread Smile

LiquidCode · Posted: Fri Feb 21, 2003 12:14 pm Post subject:

If you want to make shareware, you can look into my VDSReg program. It can create shareware out of VDS scripts and create registration keys as well. Just a thought. Wink

See in my sig.

GeoTrail · Posted: Fri Feb 21, 2003 5:02 pm Post subject:

Very nice. I like it.
But I really want to make my own.
It's not to make a big pro app, but mostly as this is my first VDS project, I want to use this project to learn by. Know what I mean?

LiquidCode · Posted: Fri Feb 21, 2003 9:27 pm Post subject:

Sure no prob. I just thought I would let you know it was there. Wink

Have fun with VDS. It is a great tool Exclamation

GeoTrail · Posted: Fri Feb 21, 2003 9:50 pm Post subject:

Yeah, can't disagree with that Wink