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iCare check digit calculation

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Martin B

Programmer
Oct 29, 2020
20
DK
Does anyone have the logic to calculate the "Micros 1212 weighted check digit"?

Thanks.
 
Sure, and with foreign cards, we can use the standard 1212 calculation (which is just MOD10) - this is what we have done for years, but now I actually need the algorithm for a specific use case.

I was hoping that either you or Cathal had it... :)

I've looked in the StoredValueCommandModule.dll but all validating is done at the hosting center.
 
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