An abuse-free fair contract signing protocol based on the RSA signature
WWW '05 Proceedings of the 14th international conference on World Wide Web
Implementing Fair Non-repudiable Interactions with Web Services
EDOC '05 Proceedings of the Ninth IEEE International EDOC Enterprise Computing Conference
A Family of Trusted Third Party Based Fair-Exchange Protocols
IEEE Transactions on Dependable and Secure Computing
A new dependable exchange protocol
Computer Communications
An abuse-free fair contract-signing protocol based on the RSA signature
IEEE Transactions on Information Forensics and Security
Dependable transaction for electronic commerce
ICCSA'05 Proceedings of the 2005 international conference on Computational Science and Its Applications - Volume Part III
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Fair exchange between two or more potentially mutually distrusted parties has been identified as an important issue in electronic commerce. However, the correctness (fairness) of the existing fair exchange protocols that use a Trusted Third Party (TTP) is based on the assumption that during an exchange there are no failures at any of the local systems involved in the exchange, which is too strong in many situations. This paper points out that (1) system failures could cause loss of fairness, and (2) existing fair exchange protocols that use TTPs cannot ensure fairness in presence of system failures. We present a systematic way to develop such data exchange systems that can recover from system failures without losing fairness. We identify a set of fairness loss risks caused by local system failures. We identify fault tolerance correctness criteria for fair data exchange, denoted fairness-lossless recoverability. A fairness-lossless recoverable fair exchange system is immune from the set of fairness loss risks. Standard message logging approaches are then studied and extended to achieve fairness-lossless recoverability with good performance.