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Creditcard validator by Using Luhn's algorithm to verify the validity of credit card numbers. It also fetches credit card number data from datasets for testing and analysis.

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CreditCard-Validator

Creditcard validator that uses the Luhn algorithm to verify the validity of credit card numbers. It also fetches credit card number data from datasets for testing and analysis.

What's Luhn's Algorithm??

The Luhn algorithm, also known as the “modulus 10” or “mod 10” algorithm, is a simple checksum formula used to validate a variety of identification numbers, including credit card numbers, IMEI numbers (for mobile phones), and more. Its primary purpose is to check for errors in these numbers and detect typos or accidental mistakes when entering them.

Here’s how the Luhn algorithm works:

  1. Starting from the rightmost digit (the least significant digit) and moving left, double the value of every second digit. If doubling a digit results in a number greater than 9, subtract 9 from that number.
  2. Sum all the digits in the modified number, along with the unmodified digits that were not doubled.
  3. If the total sum is a multiple of 10 (i.e., the sum ends in 0), then the number is considered valid according to the Luhn algorithm. Otherwise, it’s invalid.

Features

  • Validates credit card numbers using the Luhn algorithm.
  • Fetches credit card number data from datasets

Requirements

  • Python 3.11.6
  • pandas

Usage

Install Dependencies with pip

pip install -r requirements.txt

run the script with

python3 run.py

here's a table that includes the CC issuing authority and IIN (Issuer Identification Number) ranges for the credit card networks:

Issuing Authority IIN Ranges
American Express 34, 37
Bankcard 5610, 560221–560225
BMO ABM Card 500, 5510
Canadian Imperial Bank of Commerce Advantage Debit Card 4506
China T-Union 31
China UnionPay 62, 81
Dankort 5019, 4571
Diners Club enRoute 2014, 2149
Diners Club International 36, 300–305, 3095, 38–39
Diners Club United States & Canada 54, 55
Discover Card 6011, 622126 - 622925, 624000 - 626999, 628200 - 628899, 64, 65
HSBC Bank Canada Card 56
InterPayment 636
InstaPayment 637-639
JCB 3528–3589
LankaPay 357111
Laser 6304, 6706, 6771, 6709
Maestro UK 6759, 676770, 676774
Maestro 50, 56–69
Mastercard 2221-2720, 51–55
MIR 2200–2204
NPS Pridnestrovie 6054740-6054744
Royal Bank of Canada Client Card 45
RuPay 60, 6521, 6522
Scotiabank Scotia Card 4536
Solo 6334, 6767
Switch 4903, 4905, 4911, 4936, 564182, 633110, 6333, 6759
TD Canada Trust Access Card 4724
Troy 979200–979289
UATP 1
UkrCard 6040, 6041
Visa 4
Verve 506099–506198, 650002–650027

License

This project is licensed under MIT License.

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Creditcard validator by Using Luhn's algorithm to verify the validity of credit card numbers. It also fetches credit card number data from datasets for testing and analysis.

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