| 多商家微支付方案的安全分析与改进 |
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| 引用本文： | 练斌,陈恭亮.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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| 作者姓名： | 练斌 陈恭亮 |
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| 作者单位： | 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 |
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| 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。
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| 关 键 词： | 微支付 Hash碰撞 效率 多商家 |
| 修稿时间： | |
Security analysis and improvement of micro-payment scheme for multiple merchants |
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| LIAN Bin,CHEN Gongliang.Security analysis and improvement of micro-payment scheme for multiple merchants[J].Computer Engineering and Applications,2011,47(20):109-112. |
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| Authors: | LIAN Bin CHEN Gongliang |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | micro-payment Hash-collision efficiency multiple merchants
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