A study on secure and fair escrow services for digital commerce

Online escrow service is the key to facilitate and accelerate e-commerce, especially d-commerce, by assuring secure settlement and e-logistics services. It has inspired a large variety of works. However, much of that works which provide business models we use now, are based on the principle that the goods which they sell are tangible objects. Therefore, we propose secure and fair escrow services tailored specifically to digital goods trading. The treatment of certified delivery is a focus of escrow services in this paper and thus we pay special attention to evidence accountability for non-repudiation services. In addition, lightweight involvement for users during transactions is given, that is a matter of concern for practicability.