Advanced techniques in securing payment gateways and transaction networks

Retailing and e-commerce are presenting subjects of many researches in security. In the retail business area, after giving a cashier to the customer, a retailer will be obliged to accept any payment that was consecrated as legal tender according to the country laws. Therefore, the cashier is the point of collection of money, and the connection between the customer and retailer. The cashier is representing the importance of payment; therefore, all actions of merchants and customers, related to the payment, are sensitive and have to follow security constraints for creating trust in both sides. The customer has to be sure that the retailer is not collecting money without performing the required service and the retailer has to be sure that the customer will not enable fraud without guaranteeing money payment (which is a basis of trust). These actions are generally called transactions. Security aspects, in general, apply as well in the e-commerce area for securing transactions.