supported by the Major Research Plan of the National Natural Science Foundation of China (Grant No. 90818005);the National Natural Science Foundation of China (Grant Nos. 60903217, 60773032and 60773114);the Ph.D. Program Foundation of Ministry of Education of China (Grant No. 20060358014)
We present a quantum secret sharing scheme between multiparty (m members in Group 1) and multiparty (n members in Group 2), and analyze its security. This scheme takes EPR pairs in Bell states as quantum resources. In...