Currency management system: a distributed banking service for the grid
Xavier León Gutiérrez · 2007
token representation: although the token has an associated value, it does not address to maintain the characteristics previously mentioned. They are designed to manage the resource consumption made by users and to avoid the free-riding problem. In these systems we can find PPay [11], CPay [20] or the work of Liebau et all [21]. As each token is the minimal unit of payment, there is an overhead associated with a transaction since each token must be digitally signed, maintain a history of the transactions, etc. This is due to some security issues, explained in Section 1.7, such as detect double-spending, the nonforgeability property, etc. In a market environment where the prices are not fixed and their variance is very high, the overhead generated by the transactions is not inestimable. 1.5 Currency storage There are different ways to classify the currency management depending on where the currencies are stored. This classification will depend on the use case scenario as well as which currency representation is used (previous section). It is important to note that not all the representations introduced in the previous section could be stored using whatever form of storage explained in this section. We can define the currency by the following way: local, remote centralized and remote distributed.