Answer:
The cashier now holds the card.
Step-by-step explanation:
A chip card, also called a smart card, is a credit or debit card with a computer chip embedded in the face of the card.
Chip cards are light years away from magnetic stripe cards in terms of security. The main operation of this type of cards is that they communicate in real time through a security terminal to the bank, which allows the card number and data to be forwarded through the network.
The <em>main experience </em>that the user will notice is when you enter the card to the cashier, because unlike the bar cards, it must remain inside the cashier, until the transaction is finished. Some ATMs now have the modality that the chip communicates remotely, the possibility of extracting a small amount of money without the need to enter a key.
The chip can communicate a unique encrypted token (or an alias) with the network with its real credit card number. In this way this 'Token' is sent to the bank to be decrypted and thus perform the verification and then the payment is done in a few seconds or less.
The bank's encryption is given in real time, so that regarding the experience of the ATM and / or interface, the experience must remain the same: Income of the amount to be withdrawn, deposit of the key and final balance.
