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How can I protect the "enabled functions" license file for my program?

My application can perform 5 business functions. Now I have a requirement to build this in the licensing model for the application.

My idea is to send a "key file" with the application. The file should contain some encrypted data about which features are included in the application and which are not. I also want this midfield proof, so that not only any idiot can understand the logic and “crack” it.

The decrypted version of this file should contain, for example:

   BUSINESS FUNCTION 1 = ENABLED
   BUSINESS FUNCTION 2 = DISABLED.... etc

Please give me some ideas on how to do this?

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7 answers

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