Showing papers by "Xiaodong Lin published in 2003"

Credit card-based secure online payment

Abstract: The credit card is a popular payment method for the purchase of goods and services. Traditionally, credit cards are used by buyers to purchase merchandise from brick-and-mortar stores. Transactions are carried out face-to-face. Typically, the merchant first obtains authorization from the credit card company regarding the transaction. If the transaction is authorized, the buyer is asked to sign for the purchase, and a paper receipt stating the terms of the sale will be issued to the buyer. The merchant also verifies that the buyer’s signature matches the cardholder’s signature at the back of the card, and that the card has not expired.