منابع مشابه
Fair Exchange
Fairness is a broad concept, covering a range of qualifications such as impartiality, courtesy, equity, sportsmanship, etc. Here, we focus on fairness in exchanging (electronic) goods, stipulating that none of the partners can take an undue advantage over the other. When is an interaction between two or more people called fair? Let us proceed with a few examples which reflect fairness as it is ...
متن کاملFair Exchange
transition relations. In Proc. 16th Ann. IEEE Symp. on Logic in Computer Science, Boston, MA, June, pp. 51–58.IEEE Computer Society Press, Los Alamitos, CA. [77] Kremer, S. and Raskin, J.-F. (2002) Game analysis of abuse-free contract signing. In Proc. 15th IEEE Computer Security Foundations Workshop, Cape Breton, Nova Scotia, Canada,June. IEEE Computer Society Press, Los Alamitos, ...
متن کاملOn Fair Exchange, Fair Coins and Fair Sampling
We study various classical secure computation problems in the context of fairness, and relate them with each other. We also systematically study fair sampling problems (i.e., inputless functionalities) and discover three levels of complexity for them. Our results include the following: – Fair exchange cannot be securely reduced to the problem of fair cointossing by an r-round protocol, except w...
متن کاملAmbiguous Optimistic Fair Exchange
Optimistic fair exchange (OFE) is a protocol for solving the problem of exchanging items or services in a fair manner between two parties, a signer and a verifier, with the help of an arbitrator which is called in only when a dispute happens between the two parties. In almost all the previous work on OFE, after obtaining a partial signature from the signer, the verifier can present it to others...
متن کاملUsable Optimistic Fair Exchange
Fairly exchanging digital content is an everyday problem. It has been shown that fair exchange cannot be done without a trusted third party (called the Arbiter). Yet, even with a trusted party, it is still non-trivial to come up with an efficient solution, especially one that can be used in a p2p file sharing system with a high volume of data exchanged. We provide an efficient optimistic fair e...
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ژورنال
عنوان ژورنال: The Computer Journal
سال: 2003
ISSN: 0010-4620,1460-2067
DOI: 10.1093/comjnl/46.1.55