A Lightweight Fair Payment Protocol for Mobile Devices

• Main Authors: Cheng-Chung Lee, 李政仲
• Other Authors: Shiuhpyng Shieh
• Format: Others
• Language: en_US
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/70464408373187647227

碩士 === 國立交通大學 === 資訊科學與工程研究所 === 96 === Most payment protocols use public key cryptosystems to encrypt and sign messages for non-repudiation and fairness. Due to low computational power and limited memory, mobile devices cannot work well with public key cryptosystems or complex operations, such as exponential operations. A lightweight scheme is desirable for both encryption and signature, to achieve non-repudiation and fairness for mobile devices. In this paper, we propose a lightweight fair payment protocol for mobile devices. The proposed protocol is able to attain the important properties, namely fairness, non-repudiation, product validation, and merchant authentication. In our scheme, a trusted third party is needed to initialize the payment protocol, and resolve disputation automatically.