A Generic Framework for Accountable Optimistic Fair Exchange Protocol
نویسندگان
چکیده
منابع مشابه
A traceable optimistic fair exchange protocol in the standard model
An Optimistic Fair Exchange (OFE) protocol is a good way for two parties to exchange their digital items in a fair way such that at the end of the protocol execution, both of them receive their items or none of them receive anything. In an OFE protocol there is a semi-trusted third party, named arbitrator, which involves in the protocol if it is necessary. But there is a security problem when a...
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For e-commerce payments, fair exchange is one of the essential problems. The optimistic fair exchange protocol allows two parties to efficiently exchange items so that either each party gets the other’s item or neither does. We propose a new optimistic fair exchange protocol that is efficient and applicable to any digital signature scheme such as RSA or DSA. In our protocol, we introduce pre-si...
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We describe a generic protocol for fair exchange of electronic goods with non-repudiation. Goods can be signatures (i.e., non-repudiation tokens of public data), confidential data, or payments. The protocol does not involve a third party in the exchange in the faultless case but only for recovery.
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Privacy-preserving optimistic fair exchange (POFE) is a kind of protocols which aim to solve the fairness problem in the exchange of digital signatures between two parties and in the meanwhile protect their privacy. In POFE, no one else including the semi-trusted third party in charge of arbitration can confirm an exchange even after resolving a dispute. In this paper we present a black-box con...
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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...
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ژورنال
عنوان ژورنال: Symmetry
سال: 2019
ISSN: 2073-8994
DOI: 10.3390/sym11020285