Hi
Sorry if this is considered off topic. Please ignore the post in that case.
My site uses ten digit numbers as ID:s for our products. I would like
the last digit to be a verification/check digit. I was just about to
just make some simple function that would add the other values together
into a one digit verification digit. But I thought maybe there are
better or worse ways of doing this, since some algorithms probably
produce a more even distribution of verification digits than others do.
I.e. it would be a shame if I later on notice that half of my ID:s get
9 as verification.
Any ideas?
Regards Emil
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