[1]School of Computer and Information Technology,Benjing Jiaotong University,Beijing 100444,China;
[2]Information Security Center,Beijing University of Posts and Telecommunications,Beijing 100876,China;
[3]College of Computer Science and Technology,Henan Polytechnic University,Jiaozuo 454000,Henan,China;
[2]Information Security Center,Beijing University of Posts and Telecommunications,Beijing 100876,China;
[1]School of Computer and Information Technology,Benjing Jiaotong University,Beijing 100444,China;
[2]Information Security Center,Beijing University of Posts and Telecommunications,Beijing 100876,China;
SMC; Secure multi-party comparison problem; NTRU encryption;