To correct the problem that traditional secret sharing scheme can not take precautions against cheat
in this paper
we propose a rational secret sharing scheme.The proposed scheme based on bilinear pairing is verifiable and the participants'cheat can not work.The dealer doesn't need a secret share distribution.Therefore
the scheme greatly improves the efficiency of secret distribution.In addition
the trusted party is eliminated in the secret reconstruction phase.The gain of following the protocol is more than the gain of deviating
so rational player has an incentive to abide by the protocol.Finally
every player can obtain the secret fairly.Moreover
the scheme can withstand the conspiracy attack with at most