Group-oriented fair exchange of signatures
نویسندگان
چکیده
منابع مشابه
Group-oriented fair exchange of signatures
In an Optimistic Fair Exchange (OFE) for digital signatures, two parties exchange their signa-tures fairly without requiring any online trusted third party. The third party is only involved whena dispute occurs. In all the previous work, OFE has been considered only in a setting where both ofthe communicating parties are individuals. There is little work discussing about the fair ex...
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This paper presents fair traceable multi-group signatures (FTMGS), which have enhanced capabilities, compared to group and traceable signatures, that are important in real world scenarios combining accountability and anonymity. The main goal of the primitive is to allow multiple groups that are managed separately (managers are not even aware of the other ones), yet allowing users (in the spirit...
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An optimistic fair exchange (OFE) protocol is an effective tool helping two parties exchange their digital items in an equitable way with assistance of a trusted third party, called arbitrator, who is only required if needed. In previous studies, fair exchange is usually carried out between individual parties. When fair exchange is carried our between two members from distinct groups, anonymity...
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Fair exchange protocol aims to allow two parties to exchange digital items in a fair manner. It is well-known that fairness can only be achieved with the help of a trusted third party, usually referred to as arbitrator. A fair exchange protocol is optimistic if the arbitrator is not involved in the normal execution of the fair exchange process. That is, its presence is necessary only when one o...
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ژورنال
عنوان ژورنال: Information Sciences
سال: 2011
ISSN: 0020-0255
DOI: 10.1016/j.ins.2011.03.024