Multi-party Computation with Social Rational Parties

In traditional rational multi-party computation, parties are assumed to have utility functions and they act according to the utility assumptions. In economics and political scenarios, parties in multi-party computation may have some other properties such as reputation which plays an important role on boosting mutual cooperation in multiparty computation. In this paper we put forward a new kind of parties satisfying reputation assumption and utility assumptions. Meanwhile we construct a social rational multiparty computation protocol under incomplete information and incomplete network to facilitate the implementation of the protocol within constant rounds.