AMEX CVC authentication about paymentkit HOT 7 CLOSED

3 digit Amex CVCs are valid. Amex CVCs can be 3 or 4 digits.

from paymentkit.

Totally didn't know that, thank you.

However, it appears that the delegate call back on PKView only happens after the third digit is entered. If the user enters a 4th digit there is no call-back or indication that this has happened.

from paymentkit.

3 digit amex's are valid - but stopping at the 3rd digit makes 4 digit amex' cvc's impossible to type in.

the keyboard is dismissed at the 3rd digit even if it's an amex (and could possibly have a 4th digit)

This is definitely still an open issue

from paymentkit.

Also, are you sure AmEx currently issues cards with 3 digit codes?

Light googling returned:

http://www.cvvnumber.com/cvv.html

American Express® cardholders:
Look for the 4-digit code printed on the front of your card just above and to the right of your main credit card number. This 4-digit code is your Card Identification Number (CID). The CID is the four-digit code printed just above the Account Number.

from paymentkit.

However, it appears that the delegate call back on PKView only happens after the third digit is entered. If the user enters a 4th digit there is no call-back or indication that this has happened.

@michaelvillar ?

from paymentkit.

this seems to fix it (in PKView.m ~line 266)

Sorry - new to pull-requests n what not, meant to do it that way.

- (BOOL)isValid
{    
    return [self.cardNumber isValid] && [self.cardExpiry isValid] &&
           [self.cardCVC isValidWithType:[[PKCardNumber cardNumberWithString:cardNumberField.text] cardType]];
}

from paymentkit.

@sebbean AMEX have 3 digits code as well.

Here is the fix d6f9f94

from paymentkit.