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How to not make a licensing system | ez1095 filter_list
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How to not make a licensing system | ez1095 #1
Hello everyone, this thread is going to talk about the licensing system of ez1095 by HalfpriceSoft. The reason being that on the current version of ez1095 (7.0.3), the licensing system mathematically does not work (or maybe im just retarded, like always).

The full licensing code is available here, however it can be quite confusing if you're not into coding, so heres an explanation of the process.
Code:
1: Remove all "-" from the key 2: Verify that the key is 16 characters long 3: Verify that the first 4 characters of the key to have "2020" (it probably changes every year, but in the application it is hardcoded) and here is where everything breaks let name the 5th character of the key "a", then lets name the 6th character of the key "b". now you will have to add up a & b in brackets, meaning they'll be calculated first, then redo it on the left of it & substracts both, then divide the whole thing by 10 then remultiply it by 10, the calculation looks like this. a + b - (a + b) / 10 * 10 the answer you will need to get is 5, however it isn't possible since this will always round it down to 0, making the whole thing not work. (a+b) / 10 * 10 only has 6 valid answers, but none works for the calculation above (they're 05, 14, 23, 32, 41, 50, all being multiples of 9) the rest of the key check goes as follow 5: add up all of the numbers & check if they add up to a multiple of 10 6: it now will get character 6 to 9, then will add character 6+7, then 8+9 seperately 7: the "8+9" calculation will then be rounded down, however, like step 4, it will always return 0, making the licensing system thinks its a trial key
RIP the pizza king
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RE: How to not make a licensing system | ez1095 #2
Moved from The Lounge forum to Software & Programs.
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