This extension creates payload processors to calculate and append Luhn check digits to a payload.
After installing and enabling the extension, go to the Intruder tab and click the Add button under the Payload Processing section. Select "Invoke Burp extesion" from the dropdown, and two new options will appear:
- Luhn: Append check digit to payload
- Luhn: Append check digit to payload with hyphen
The extension will append the check digit to the payload automatically (e.g. 12345 will become 123455 or 12345-5). Non-numeric payloads will be passed through to the request unmodified.