HSM KitHSM Kit
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Check Digits

Verify or generate check digits using various algorithms
Operation:
Hash type:
Luhn's number (MOD 10)
Input:[0]

📖 How to Use Check Digit Calculator

• Select the algorithm type (Luhn MOD 10 or Amex SE MOD 9).
• Choose to Verify an existing number or Generate a check digit.
• Enter the number and click the action button.

Check Digits FAQ