Optimistic Fair Exchange in a Multi-user Setting

Further Observations on Optimistic Fair Exchange Protocols in the Multi-user Setting

Efficient Optimistic Fair Exchange Secure in the Multi-user Setting and Chosen-Key Model without Random Oracles

Threshold-Oriented Optimistic Fair Exchange

Ambiguous Optimistic Fair Exchange

An Optimistic Multi-party Fair Exchange Protocol with Reduced Trust Requirements

Optimistic fair exchange in the enhanced chosen-key model