Micropayments are electronic payments of small amount. Given their low value, the cost of the corresponding electronic transactions should also be kept low. Current micropayment schemes allow a regular amount of money withdrawn from a bank to be split into fixedvalue coupons, each of which is used for one micropayment. A more flexible mechanism is proposed in this paper, whereby coupons of vari...

In its early stages of development, e-business was merely a new land to conquer and making profits was not the main objective. The winners were by and large shrewd people who knew how to make money. As a result, they got rich more as a result of overselling virtual myths, such as markets on the Internet, logos, trades, shares, etc., than by being paid for services and products they developed an...

Electronic payment (e-payment) has been widely applied to electronic commerce and has especially attracted a large number of mobile users. However, current solutions often focus on protecting users’ money security without concerning the issue of users’ privacy leakage. In this paper, we propose AEP-M, a practical anonymous e-payment scheme specifically designed for mobile devices using TrustZon...

A fair network payment protocol plays an important role in electronic commerce. The fairness concept in payments can be illustrated as that two parties (e.g. customers and merchants) exchange the electronic items (e.g. electronic money and goods) with each other in a fair manner that no one can gain advantage over the other even if there are malicious actions during exchanging process. In the p...

The particle physics community is sharing its resources over a Grid network. Currently resources are used on availability. But there is no fair allocation considering the importance or the private value of a job. Researchers are using Grid resources regardless of whether others need them more urgently. Furthermore, they do not even provide their own resources as they do not have an incentive fo...

Remember that Time is Money” — Benjamin Franklin in Advice to a Young Tradesman (1748) Consider the following setting: a customer has a package and is willing to pay up to some value v to ship it, but needs it to be shipped by some deadline d. Given the joint prior distribution from which (v, d) pairs are drawn, we characterize the auction that yields optimal revenue, contributing to the limite...

The term electronic commerce is generally applied to any form of business transaction by means of telecommunication networks. This involves the use of information technology (such as electronic data interchange (EDI), electronic mail, transfer of money, etc) to link the functions provided by participants in this kind of commerce, rather than physical exchanges or direct physical contact. It als...