a formal model of fair exchange protocols

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	a formal model of fair exchange protocols
	Qing SH ; Li GC
刊名	SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES
	2005
卷号	48 期号:4 页码:499-512
关键词	events local causal relation local temporal relation global relation exchanged item security goals
ISSN号	1009-2757
学科主题	Computer Science, Information Systems
收录类别	SCI ; SPRINGER
语种	英语
WOS记录号	WOS:000231865400007
公开日期	2011-07-28
附注	Based on the study of existing fair exchange protocols, this paper sets up an accurate formal model by stepwise refinement. In the process of refinement an unreliable channel is employed to simulate an attack behavior. The model provides a novel formal definition of exchanged items, and presents the formal goals for fairness, accountability, etc., reflecting the inherent requirements for fair exchange protocols across-the-board. In order to check, prove, and design fair exchange protocols effectively and efficiently, the model puts forward a novel property of abuse-freeness which applies to all fair exchange protocols, gives a formal definition for trust strand of the third party, and presents general criteria of designing a secure and effective fair exchange protocol. Taking a typical fair exchange protocol as an example, this paper presents the analysis steps of fair exchange protocols appealing to our model. An unknown attack is uncovered. The analysis reveals the process of a complete attack, discovering deeper reasons for causing an attack. Finally, we modify the flawed protocol and the revised protocol ensures the desirable properties.
内容类型	期刊论文
源URL	[http://124.16.136.157/handle/311060/12538]
专题	软件研究所_软件所图书馆_期刊论文
推荐引用方式 GB/T 7714	Qing SH,Li GC. a formal model of fair exchange protocols[J]. SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES,2005,48(4):499-512.
APA	Qing SH,&Li GC.(2005).a formal model of fair exchange protocols.SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES,48(4),499-512.
MLA	Qing SH,et al."a formal model of fair exchange protocols".SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES 48.4(2005):499-512.