Date Added: Nov 2009
The vast spreading of information in the last decade has led to great development in e-commerce. For instance, e-trade and e-bank are two main Internet services that implement e-transaction from anyplace in the world. This helps merchant and bank to ease the financial transaction process and to give user friendly services at any time. However, the cost of workers and communications falls down considerably while the cost of trusted authority and protecting information is increased. E-payment is now one of the most central research areas in e-commerce, mainly regarding online and offline payment scenarios.