In this paper we propose an e-commerce protocol with the following features: (1) ensures true fair exchange, (2) does not require manual dispute resolution in case of unfair behavior by any party, (3) does not require the active involvement of a trusted third party, (4) allows the customer to verify that the product he is about to receive is the one he is paying for, and (5) can be used for the...

Reputation mechanisms provide a promising alternative to the traditional security methods for preventing malicious behavior in online transactions. However, obtaining correct reputation information is not trivial. In the absence of objective authorities (or trusted third parties) which can oversee every transaction, mechanism designers have to ensure that it is rational for the participating pa...

In this paper, a method is described for user self-profiling when engaged in e-commerce over the Internet, by which customers can have greater control over profiles relating to their behaviour or preferences and can exploit this information without revealing their identity. This is achieved using trusted agents that exploit Trusted Computing Platform technology (cf. www.trustedpc.org).

In this paper, we present a fair-exchange electronic commerce (e-commerce) protocol, based on using an online trusted third party, that ensures fairness and prevents any party from gaining advantage by quitting prematurely from the transaction or otherwise misbehaving. An important contribution of this protocol is that the dispute resolution is taken care of within the protocol itself and does ...

In the world of internet, e-commerce is one of the most prominent sectors where user wants to shop and pay online for online products. E-cash is one of these payment methods. In e-cash, every time a unique string is generated for user so that user uses that string to pay for any online product. At the time of online purchasing a trust should be maintain between customers and merchant such that ...

Millions of dollars change hands daily through online auction markets. However, fraud has been on the rise in these markets. Using a game theoretic approach, we propose a design of an economic incentive mechanism, the trusted third party (TTP), to serve the online auction communities. The proposed model addresses both the economic and technological aspects of online auction transactions by assi...

In the context of electronic government, e-services are a valuable instrument for offering high quality services to enterprises and individual citizens alike. While developing an e-service, it is usually possible to reuse elements that have already crafted for other e-services, such as personal detail forms or widgets for collecting social security numbers, decreasing thus both development effo...

It has been widely accepted that fairness is a critical property for electronic commerce. Fair payment protocol is designed to guarantee fairness in a payment process over asynchronous network. Fairness means that when the protocol terminates, either both parties get their expected items, or neither does. In this paper we first present a new generic offline fair payment protocol with fairness, ...

Let G be a graph. The first Zagreb polynomial M1(G, x) and the third Zagreb polynomial M3(G, x) of the graph G are defined as:     ( ) ( , ) [ ] e uv E G G x x d(u) + d(v) M1 , ( , )  euvE(G) G x x|d(u) - d(v)| M3 . In this paper, we compute the first and third Zagreb polynomials of Cartesian product of two graphs and a type of dendrimers.