Design Issues for Replacing Credit Card on Mobile Phone

Abstract

Money Transaction has become common, frequent and a necessity in the current living and carrying cash always with a person is not a practical solution. The current trend of carrying the credit cards have become a crucial part of life and carrying of multiple cards is common nowadays. There is a risk involved when a credit card is stolen. Every one carries mobile phone. Our solution approach is to develop a system in which functions of the credit card is incorporated in mobile phone. The mobile phone is then used as a credit card and it replaces the function of swapping of the credit card each time we shop. Our system will have credit card application stored on mobile phone. This application will have all the information related to credit card operation, stored in encrypted form in the mobile phone. Further, this information is protected by a password. When a person desires to make any transaction through the mobile phone, the credit card data is passed from the mobile to the vendor machine through a Bluetooth communication interface. The vendor machine validates the credit card data with the corresponding bank in standard fashion and issue the receipt. Thus this eliminates the need for carrying credit card physically. This will require modification on mobile software for safe storage of credit card information and few hardware modifications (add-on) to the vendor terminal for communication using Bluetooth. This paper focuses on various design issues of this application where mobile phone will act as a credit card.