Comment on “Secure multiparty computation with a dishonest majority via quantum means”
Yanbing Li, Qiaoyan Wen, Su‐Juan Qin · Physical Review A · 2011
In a recent paper [K. Loukopoulos and D. E. Browne, Phys. Rev. A 81, 062336 (2010)], five schemes for secure multiparty computation utilizing the Greenberger-Horne-Zeilinger (GHZ) quantum correlation were presented, which were claimed to be secure in some kinds of security models. However, this study points out that schemes C and D2 could be attacked by corrupted parties replacing photon and exchanging classical information.