Security analysis and improvement of micro-payment scheme for multiple merchants

Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (20): 109-112.

• 网络、通信、安全 • Previous Articles Next Articles

Security analysis and improvement of micro-payment scheme for multiple merchants

LIAN Bin1，2，CHEN Gongliang1

1.School of Information Security Engineering，Shanghai Jiaotong University，Shanghai 200240，China
2.School of Information Science and Engineering，Ningbo Institute of Technology，Zhejiang University，Ningbo，Zhejiang 315100，China

Received:1900-01-01 Revised:1900-01-01 Online:2011-07-11 Published:2011-07-11

多商家微支付方案的安全分析与改进

练斌1，2，陈恭亮1

1.上海交通大学信息安全工程学院，上海 200240
2.浙江大学宁波理工学院信息科学与工程分院，浙江宁波 315100

Abstract

Abstract: High efficiency is always an essential attribute of an improved micro-payment scheme based on PayWord，and single Hash chain paying for multiple merchants is one of common methods.After analyzing security of the correlative schemes，hidden dangers are revealed.Then a new scheme，named ACO，is presented，which can be proved to solve the problem of Hash-collision mentioned in the analyzed schemes.The design intentions of ACO protocol are explained，and by comparing cost and efficiency in detail，the practicability of ACO is demonstrated.

Key words: micro-payment, Hash-collision, efficiency, multiple merchants

摘要： 高效通常是基于PayWord改进的微支付方案的必备属性，而单Hash链对多商家支付是常见的实现方式。通过分析，揭示了相关方案的安全隐患，并提出一个称为ACO的全新的方案。针对所分析的方案提出的Hash碰撞问题，ACO能够以可证明的方式予以消除。剖析了ACO支付协议的设计意图，并通过详细对比实现代价和系统效率，显示了ACO的实用性。

关键词: 微支付, Hash碰撞, 效率, 多商家

LIAN Bin1，2，CHEN Gongliang1. Security analysis and improvement of micro-payment scheme for multiple merchants[J]. Computer Engineering and Applications, 2011, 47(20): 109-112.

练斌1，2，陈恭亮1. 多商家微支付方案的安全分析与改进[J]. 计算机工程与应用, 2011, 47(20): 109-112.

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Security analysis and improvement of micro-payment scheme for multiple merchants

多商家微支付方案的安全分析与改进

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