Luhn 10 valid tokens to replace credit card numbers and simplify PCI Compliance

braintreepaymentsolutions.com

9 pointsthere2 comments

So, basically they have just reverse engineered the already very simple Luhn-10 algorithm, and labelled it as a "new algorithm" to generate tokens which get validated by Luhn-10.

How many lines of code was that? I would be surprised if the guys have written more than 10 lines.

I don't think the point was that the solution was difficult to implement technically. Rather that it was a clever solution to some very specific restrictions from a legacy system.

A nice example of "thinking outside of the box" if you like.

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