Every day issues and daily life activities are reflected and replicated in virtual worlds. You no longer need be in Finance or in the nearest bank to deliver the income statement, bank transactions can be completed by phone or Internet, it can easily buy stocks, movies, cars, anything you can imagine, press a couple of times a mouse, travelers nostalgic read digital newspaper with news of his people from Internet cafes in remote countries, is being discussed and the possibility to vote online in the next elections, in short, the Internet is becoming part of the day day, such as television or coffee of the twelve, and eventually will be more parcels of everyday that will move into this new medium.
Some of these activities are directly linked to the economic/financial. In an area such as Internet, in which participants do not see their faces and usually not even known, make payments of any kind can become an insurmountable problem. Already gone are the days when purchases are paid in coins jingling, passing from hand to hand. The new business models and interaction require new means of payment without a tangible hardware.
Today, the most universally accepted to pay a transaction conducted over the Internet or the phone is by credit card. This mechanism does not pose major problems in a physical store, in which the clerk is requested by the customer to swipe a card reader in the eyes of the latter. By contrast, when both parties are physically separated, it requires the existence of some mechanism that ensures the correct transmission and manipulation of information for credit card in order to minimize the occurrence of fraud and abuse.
Engineers, computer scientists and cryptographers have created a plethora of secure payment protocols that come to deal more success than the problem of paying for purchases made without using cash. Throughout the following sections will be what are the solutions proposed to pay by credit card safely and administratively simple, what it is and how to use e-money and how to make small payments for purchases of a few pesetas or being European purchases below a euro.
Source: www.iec.csic.es/criptonomicon/comercio/dineroe.html
image source: www.bluemedia.pl/vfolder/img/paybylink.jpg