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Activation Code?

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  • Activation Code?

    I need to build an activation code into my app. But I need it to generate a unique code every time the activation code is asked for.
    Could someone please help me with some code samples. I have no idea on how to generate this. I assume it has something to do with a timestamp value.
    I want to use this espesially on first installation of the app.

  • #2
    RE: Activation Code?


    You need to think this through very carefully.

    First you need to have a unique registration code generated. Then in a hidden field a mathamatical formular is applied to the registration code. In a third field the end user has to enter the verification code which must match the value in the hidden field. Since you know what the formular is you generate the verification code based on the registration code and send it to the end user. In the autoexec script you test the value of a logical field that has been set to true because the fields match and now the app will run.

    As you will have your own database of end users you will have on record all their registration and verification codes.

    There are many ways to generate a unique registration code, again you will have to think of what is unique.

    Hope this gives you food for thought.

    Keith Hubert
    Keith Hubert
    Alpha Guild Member
    KHDB Management Systems
    Skype = keith.hubert

    For your day-to-day Needs, you Need an Alpha Database!


    • #3
      RE: Activation Code?

      Hi Walter,

      I found something in my Purebasic Helpfiles. It must be possible with Xbasic to compute MD5 fingerprints. Look at the following help text:

      Returns a 32 characters long MD5 (Message Digest 5) hash code. Here is a quick explanation took from the RFC 1321 on MD5:

      'The algorithm takes as input a message of arbitrary length and produces as output a 128-bit "fingerprint" or "message digest" of the input. It is conjectured that it is computationally infeasible to produce two messages having the same message digest, or to produce any message having a given prespecified target message digest. The MD5 algorithm is intended for digital signature applications.'

      I hope it is not to difficult. PureBasic has this as a function. I haven't seen a equivalence for this in Xbasic. I saw a command cipher() decipher() but they where for internal Xbasic use only.


      I hear and I forget. I see and I remember. I do and I understand.
      ---- Confusius ----


      • #4
        RE: Activation Code?

        Take a look at

        Edward Larrabee


        • #5
          RE: Activation Code?

          Thanks Edward, I'll take a look at it.


          I hear and I forget. I see and I remember. I do and I understand.
          ---- Confusius ----