TY - Chinese Journal of Network and Information Security A1 - T1 - Y1 - 2017-03-01 JF - Chinese Journal of Netword and Information Security JO - Chinese Journal of Network and Information Security SP - 71 EP - 77 VL - 3 IS - 3 UR - https://www.infocomm-journal.com/cjnis N1 - 10.11959/j.issn.2096-109x.2017.00157 ER -