the National Basic Research Program of China (973 Program) (Grant No. 2007CB311100);the National High Technology Research and Development Program of China (Grant Nos. 2006AA01Z419 and 20060101Z4015);the Major Research Plan of the National Natural Science Foundation of China (Grant No. 90604023);the Scientific Research Common Program of Beijing Municipal Commission of Education (Grant No. KM200810005004);the Scientific Research Foundation for the Youth of Beijing University of Technology (Grant No. 97007016200701);the National Research Foundation for the Doctoral Program of Higher Education of China (Grant No. 20040013007);the National Laboratory for Modern Communications Science Foundation of China (Grant No. 9140C1101010601);the Doctor Scientific Research Activation Foundation of Beijing University of Technology (Grant No. 52007016200702)
Two multiparty simultaneous quantum identity authentication (MSQIA) protocols based on secret sharing are presented. All the users can be authenticated by a trusted third party (TTP) simultaneously. In the first proto...