On the Impossibility of Fair Exchange without a Trusted Third Party

Unique exchange identifier id is necessary to prevent corrupted parties to induce TTP to decrypt VSj for an another exchange Con- sider that some

In this paper, we introduce a new setup-free optimistic fair exchange scheme under the standard RSA assumption Our scheme uses the GQ identity-

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fairplay streaming Both fair exchange and transaction security are also significant issues in P → S: IDN, IDP, T1, request, h, h(IDP, h(IDN