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  1. collision - Algorithm for Gift Card Codes - Stack Overflow

    Jan 18, 2010 · Fortunately you don't have to get both properties from the same algorithm. Your gift card codes can consist of two parts: a part that is unique (generated using a linear congruential generator, …

  2. java - Generating and securing gift card codes - Stack Overflow

    Apr 3, 2018 · 10 I'm working for a company that is generating gift card codes which can be used to pay for goods on online stores. I'm wondering what the most secure way of generating these gift card …

  3. Django/Python generate and unique Gift-card-code from UUID

    Now I need to found a way to generate this gift code. Obviously this code most be unique. I found this article where the author suggest to use the auto-generaed id (integer id) into the generate code (for …

  4. Generating Valid Credit Card Track2 Data for Testing

    Feb 25, 2009 · I have test cards from my payment processor but I do not have enough to do load testing , thus I need to generate card numbers and track data I can use through their test gateway.

  5. Generating unique, hard-to-guess "coupon" codes - Stack Overflow

    Jul 13, 2016 · The 2 coupons should have unique coupon codes. What is the best way to generate a code like this that is not easily forged? I don't want users to have a high success rate of typing in …

  6. Python - How to always generate valid Luhn numbers?

    Dec 8, 2019 · Here is my credit card number generator. It will ask you for the first 15 digits of a real card so that the generated number will be "issued" by the same financial institution:

  7. Calculate CVV from Credit card tracks? - Stack Overflow

    Dec 24, 2015 · Can I calculate the CVV from the 3 credit card track data? When I scan a card, there is no CVV, just the number, name and service numbers that don't relate to anything else. Ref: Parse …

  8. How do you detect Credit card type based on number?

    Sep 16, 2008 · I'm trying to figure out how to detect the type of credit card based purely on its number. Does anyone know of a definitive, reliable way to find this?

  9. What's a good way to generate a random number for a valid credit card?

    To make the tool set a bit more complete, I would like to create a credit card random number generator based on the different card brands. This functionality will (hopefully) make my test cases a bit more …

  10. python - Faker.Credit_card_number function to generate cards from ...

    Aug 1, 2020 · It takes more time when fake.credit_card_number is used to create even just 10000 records. I might as well use random module to generate 16 digit numbers, which is quick.