Fairness in electronic commerce
Fairness in electronic commerce
Copy prevention scheme for rights trading infrastructure
Proceedings of the fourth working conference on smart card research and advanced applications on Smart card research and advanced applications
SIGMOD '81 Proceedings of the 1981 ACM SIGMOD international conference on Management of data
Revistiting the Relationship Between Non-Blocking Atomic Commitment and Consensus
WDAG '95 Proceedings of the 9th International Workshop on Distributed Algorithms
Non-Repudiation in Electronic Commerce
DEXA '02 Proceedings of the 13th International Workshop on Database and Expert Systems Applications
Using Smart Cards for Fair Exchange
WELCOM '01 Proceedings of the Second International Workshop on Electronic Commerce
Supporting fair exchange in mobile environments
Mobile Networks and Applications - Security in mobile computing environments
Modular Fair Exchange Protocols for Electronic Commerce
ACSAC '99 Proceedings of the 15th Annual Computer Security Applications Conference
TENeT: a framework for distributed smartcards
SPC'05 Proceedings of the Second international conference on Security in Pervasive Computing
Gracefully degrading fair exchange with security modules
EDCC'05 Proceedings of the 5th European conference on Dependable Computing
An intensive survey of fair non-repudiation protocols
Computer Communications
Modeling agreement problems in the universal composability framework
ICICS'07 Proceedings of the 9th international conference on Information and communications security
Fair exchange of valuable information: A generalised framework
Journal of Computer and System Sciences
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Fair exchange protocols are important in realizing safe electronic commerce. In particular, optimistic fair exchange protocols, which involve a trusted third party only when mutual communication between exchanging parties fails, are the most promising development because of their efficiency. Unfortunately, however, existing optimistic protocols place restrictions on the items that can be exchanged, i.e., at least one item must be a “strongly generatable” item such as a digital signature. Without this requirement, only weak fairness that requires (expensive) external dispute resolution processes (e.g. trials in court) after exchange failure can be assured. This paper proposes a novel fair exchange method that enables parties to fairly exchange arbitrary items in an optimistic manner. This is achieved by realizing an optimistic non-blocking atomic commitment (NBAC) protocol between two smartcards and adapting the known result that fair exchange can be reduced to NBAC among trusted processes.