RE: FN-FORUM CC digits

date posted 26th November 2001 23:52

All I can remember is I wrote some code to do that about 1987, the info came
from the banks.


Regards

Darren

-----Original Message-----
From: [EMAIL REMOVED]
[EMAIL REMOVED] Behalf Of James Fidell
Sent: 26 November 2001 23:47
To: [EMAIL REMOVED]
Subject: Re: FN-FORUM CC digits


Quoting Darren Spink [EMAIL REMOVED]

> Contact your bank, they will give you details as to how many digits are on
> each type of card and possibly (if your lucky) the algorythm that
identifies
> different cards and will check for valid card numbers.

The Luhn check is relatively simple. I have C code for that if anyone
wants it and the algorithm is published all over the web.

I've also got some code that will identify VISA/Mastercard etc. from the
card number and have a breakdown of debit card numbers by type and issuer
that I found somewhere on the net.

James

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