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Thread: Generating Serial Number Lists - how?

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    Generating Serial Number Lists - how?

    Hello.

    Although I've heard the term "algorithm" many times, I still don't know how to come up with one to generate a unique list of Serial Numbers, (or Registration Codes). Can anyone point me in the right direction for learning a good way to do this?

    thanks!

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    Re: Generating Serial Number Lists - how?

    It might be a little more difficult to write a sequential algorithm like this in MMF, but it's still possible.

    You could build up each serial number from several random numbers (use a fastloop to generate them from a list of possible characters, storing each one in a String as you go). Then once it's been generated, add it to a List object only if the List object doesn't already contain a matching serial number - though if you have a decent length of serial number and selection of characters, that's pretty unlikely anyway.

    This assumes that you're not wanting the serial to be based on existing data - if that's the case, then I'd recommend that you just use the String Parser to MD5 it all and take a bit out of that.

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    Re: Generating Serial Number Lists - how?

    I believe I used the Highscore Code Generator back for MMF1.5 for mine... but that was the lazy way out ^_^;

    I know thats not the name of the exension, but I can't remember what it was atm...

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    Re: Generating Serial Number Lists - how?

    Why dont you just use ICP, that will allow you to generate your serial/registration keys.

    Jason

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    Re: Generating Serial Number Lists - how?

    Not familiar with ICP myself... what exactly is it? And for my system, I wanted it to be generated on the fly (based on the customer's name and serial number... both had to be correct for it to work) and that was in program.

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    Re: Generating Serial Number Lists - how?

    ICP is Install Creator Pro - check out Clickteam.com for details.

    Secure Keygen 2
    Keygen v4
    OTP encryption?

    I'd probably use the Blowfish object (there should be examples in the MMF2 folder if you have the bonus pack).
    .:::.Joshtek.:::.

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    Re: Generating Serial Number Lists - how?

    Have a name and email address and combine them into a string like so

    "john smith" + "john@smith.com" + "add a secret string here"

    Add the secret string for security and then hash it all together with the QuickHash object, check if the info they were given matches the data inputed when registering.

    Hope this makes sense its a very basic outline of the process but I can make an example if you struggle. This method does it all dynamicallly and requires no actual database.

    Its a good idea to encrypt the data once stored after registering the app too...

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    Re: Generating Serial Number Lists - how?

    Yes this is method that I use in application registration. It removes the need to have a certain number of working keys that anyone can take and use, plus it also takes away the dependency on an activation server. I generate keys using the basis that IsaacBoy mentions above but I also add my own little spin on it too just to make it different and unique It also means that if a customer tried to request support from you then you'll get a good idea whether the user is a legitimate license owner or not, (because of the name and email is required to match the license key as its checked by the registration system in the app)

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    Re: Generating Serial Number Lists - how?

    These are all terrific ideas! Thanks for all the input.

    If I were to use the Customer Information as the Registration Code, how would I send them their Code automatically after their purchase? (Instead of them having to wait until I check my email...)

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    Re: Generating Serial Number Lists - how?

    That part, I haven't worked out yet ^_^;

    You might be able to setup a program that receives email from one address (There is a mail object for MM2 I think) and when that message comes in, you could try extracting the information from the message, generate the key, and send the email right back to the customer. Of course, you're computer would need to be online all the time ^_^;;;

    At least... thats what I'm planning to do ^_-

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