28 An Improved Approach for Secured Mobile Payment System based on Ecies Cryptography Ehab M. Alkhateeb, Mohammad A. Alia, and Adnan A. Hnaif Faculty of Science and Information Technology, Al Zaytoonah University of Jordan International Journal of Research in Computer Applications & Information Technology Volume 3, Issue 3, May-June 2015, pp. 28-39 ISSN Online: 2347-5099, Print: 2348-0009, DOA : 12052015 © IASTER 2015, www.iaster.com ABSTRACT Mobile payment system is defined as mobile money transfer and mobile wallet. It is also defined as an electronic payment method. Moreover, Mobile payment has been generated to be an attractive alternative for the traditional payments systems. In this paper, we propose a new approach to mobile payment system based on Elliptic Curve cryptography ECC. The proposed mobile payment system includes three main processes: Authentication process, Member recognition process, and Payment process. Furthermore, Elliptic Curve Integrated Scheme ECIES cryptographic protocol has been applied to enhance the security of the proposed mobile payment system. Basically, this mobile payment system is more efficient than other mobile payment systems since the client can pay from his/her own mobile phone without any additional cost and effort. Keywords: ECC, ECIES, Mobile Payment System, and Cryptography. 1. INTRODUCTION The definition of a mobile payment is the payment for goods between two parties for which a mobile device plays a key role in the realization of the payment, Mobile payment can be categorized into two main types based on the geographical position between customers and merchant; these are (Remote payment: The customer initiate payment remotely from the merchant, and POS (Point of Sale) or Proximity mobile payment: The customer is near the merchant or retail [1]. These types have a variety of different technologies that can be widely applied especially in the Middle East where there is a high mobile device concentration [2]. The following are some of these technologies: SMS (Short messages Service), USSD (Unstructured supplementary service data), NFC (Near field communication), RFID (Radio frequencies identification). The security in mobile payment is divided since it relies on different players or stakeholders [3]. One of the top industries worry about different attacks that can be launched in retail payment such as; mobile, and Credit card payment methods [4]. One of the methods that can be used to secure communications in presence of hackers is cryptography [5]. Moreover, the cryptanalysis and attacking, protocols speed, and performance evaluation are the core elements in building a secure mobile payment system. Therefore, this paper focuses its attention on these concerns by presenting a mobile payment system which is based on public key cryptography. In this paper we propose efficient cryptographic algorithm to be applied to the proposed mobile payment system that is based on Discrete Logarithm Problem in Ellipic Curve Groups, also the system have easy payment experience since the system only needs a mobile phone, mobile opreator, and market server.