%A LIU Zhi-Hao, CHEN Han-Wu %T Comment on "Cryptanalysis and Improvement of a Quantum Network System of QSS-QDC Using χ-Type Entangled States" [Chin. Phys. Lett. 29 (2012) 110305] %0 Journal Article %D 2013 %J Chin. Phys. Lett. %R 10.1088/0256-307X/30/7/079903 %P 079903%V 30 %N 7 %U {https://cpl.iphy.ac.cn/CN/abstract/article_54833.shtml} %8 2013-06-30 %X We point out that the quantum secret sharing (QSS) protocol proposed by Gao et al. [Chin. Phys. Lett. 29 (2012) 110305] has some defects. Thus, some strategies are given to mend them.