Miyaji Laboratory

Quantum secret sharing scheme is a method to manage secret information by dividing into division information which doesn't have meaning using the quantum encryption technology. Feng-Li Yan and Ting Gao proposed a quantum secret sharing between multiparty and multiparty without entanglement in 2005.
However If there are no quantum memory, the efficiency of the protocol falls. So we propose scheme, If there are no quantum memory, the efficiency of scheme is 100%. And we show that this scheme can make many eavesdropping to be nullification.