Mask Credit Card
This function masks valid credit card numbers.
The
output value is a valid credit card number.
This function:
- masks all digits and
- generates the last digit using the Luhn algorithm.
Two methods are available: FF1 with AES and FF1 with SHA-2. This function requires no alphabet and no extra parameter.
In the following example, the Keep format check box is selected to preserve the space from the input value.
| Credit card number | Method | Example of masked value |
|---|---|---|
|
4570 5624 6978 6793 |
FF1 with AES |
4931 3744 4754 2072 |
|
374140537770721 |
FF1 with AES |
749381687018333 |
|
5168690988613241 |
FF1 with SHA-2 |
4138106541683084 |
|
5158495805899854 |
FF1 with SHA-2 |
9641013768742255 |
| 0123 4567 8987 6543 210 | FF1 with AES | null |
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