A software need to register, suddenly think of, but not thinking, demand is as follows:
1, the software is
2, the software read machine code, through the machine code encryption algorithm to calculate the registration code, then register, software OK
3, software upgrades, and upgrade the machine code encryption algorithm to A

Question:
How to make the machine has been registered before don't have to register?

The reason for this is that the software is released, may soon have a registered machine, after registered machine out, update the encryption algorithm, a registered machine failure,

Do not discuss how to deal with to make new registration machine,

CodePudding user response:

Will be registered in the early machines feature codes stored in the program, the runtime to check the characteristics of the internal code program is correct, incorrect will verify the characteristics of the external storage yards