console.log('track_start_code ' + track_start_code) console.log('Track_start_code: ' + track_start_code) Track_start_code = track_start.charCodeAt(0) $('#cc-dialog-form').keypress(function(e) A good swipe works fine, but a bad swipe will cause an error in the parser. this data needs validation which i am looking for help on. you shouldn't store cc data in plain text, so try and keep everything in mem or strong encryption.ġst the listener to get the data. Only track2 is used for processing and has a standardized format.ĭebit cards can't generally be processed (unless they have a visa-debit card or something). I would advise getting the card holder to sign something in record of the transaction otherwise they could dispute the card and do a charge-back.Īnd not all credit cards have exactly two tracks, some uses three tracks. With the 4 characters after the = as the expiry. The part you want is track2 NNNNNNNNNNNNNNNN=1210 where NNNNN=card number PAN, and 1210 = Expiry date.Įven if track1 is empty (which sometimes it is as it's not used in processing), you will still get the ?, so you could use the index of the second as start of the string and = as the end of the cc# string. Unless your acquirer and the cardholder are using address verification, but you can find that between ^^, it may have white space padding which you can remove. You can obtain the first 2 from a card-swipe as this in the track data. MOTO transactions) you will need cc#, expiry and possibly the CVV (aka CVC2 etc). Generally for a card-not present transaction (i.e. The complete code is on that website I linked above. PersonName.Text = FormatName(CardData) ĬardNumber.Text = FormatCardNumber(CardData) ĬardExpiration.Text = CardData.Substring(2, 2) + "/" + CardData.Substring(0, 2) Here is the section of code that you probably care about: protected void CardReader_OTC(object sender, EventArgs e)ĬaretPresent = ("^") ĮqualPresent = ("=") I did you one better: I made a video showing how to do exactly this with ASP.Net/c#: I hope the data is fake, otherwise Anyone could get the:Īnd I'm not sure but I think the credit card number (or # of possibilities) can be computed using the LRC. Longitudinal redundancy check (LRC) - one character (Most reader devices. End sentinel - one character (generally '?').
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