An Electronic Commerce Scheme for Anonymity Transactions – a Case of Third Party Payment

• Main Authors: Chen, Ming-Hsin, 陳明心
• Other Authors: Su, Pin-Chang
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/67wucc

碩士 === 國防大學 === 資訊管理學系 === 104 === Third-party payment is a new online transaction model in e-commerce to guarantee the logistics and cash flow involved in the transaction process. It provides a trust mechanism for online transactions. In addition to ensuring fair exchange, how to guarantee the customer anonymity of online transactions is an important issue. If customer information cannot be kept safely, the customer's transaction information may be leaked and even illegally abused. This study proposes a new e-commerce protocol, and the new protocol is designed for trading digital goods through a third-party payment model. It not only ensures fair exchange, but also retains customer anonymity. This study adopts the elliptic curve cryptography (ECC) to strengthen the security of the online transaction process. In particular, self-authentication and blind signature schemes are incorporated into the proposed scheme to avoid the counterfeiting of user identity during the certificate issuing process, and also to reduce the cost and risk of public key storage, computation and management. Through the rigorous analysis, the proposed solution has three main advantages: (1) achieving the same security strength by using a shorter key; (2) simplifying the certification process by a self-authentication scheme; (3) fulfilling the basic information security requirements including confidentiality, integrity, authenticity, non-repudiation, customer anonymity and fairness.