Hello,
I need to mask credit card numbers. The length of the card numbers is always 16.
For my requirement, I need to keep the first 7 digit so I the credit cart type (VISA, MC, etc) are kept.
I would like to know if there is a masking function that let's me retain the first "x" digits, where "x" is a number and it need to recalculate the check digit.
The masking function would produces unique values as long as the original values are also unique.
Is there any masking function that would work with my requirement?
It needs to work on ZOS, Oracle, SQL SERVER, DB2, etc.
Thanks