Better/easier credit card entry?

Question

This is a feature request for the "Add new credit card" functionality in the browser extension, which opens a webpage like:

Right now, those fields are just "dumb" plaintext fields, and it's really easy to accidentally enter the wrong credit card number (by missing or mistyping a digit, for example).

I'd love for 1password to automatically detect the type of card using the https://en.wikipedia.org/wiki/Payment_card_number#Issuer_identification_number_(IIN) and validate the entered number (clientside only) using the https://en.wikipedia.org/wiki/Luhn_algorithm.

These are pretty common features in credit card entry screens and can help prevent user errors. I frequently enter credit cards into 1password because it's a great place to save them all, but having to manually check all the digits every time is quite difficult.

Thank you!

2passwords · Answer

Not sure why the hyperlinks didn't format right, sorry :( I seem to be having issues with this forum software.

Anyway, the first link discusses the issuer identification number, which should let 1password automatically detect whether it's a Visa/Mastercard/Amex etc. in most cases.

The second link describes the checksum algorithm used by major credit cards to verify whether the entered number is valid (as in proper and typo-free). It doesn't send anything across the internet for checking actual account validity or anything like that.

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