@ARTICLE{Li:IJIS2013, author = {Hassan Jammel Asghar and Shujun Li and Josef Pieprzyk and Huaxiong Wang}, title = {Cryptanalysis of the {Convex Hull Click} Human Identification Protocol}, journal = {International Journal of Information Security}, year = {2013}, volume = {12}, number = {2}, pages = {83-96}, doi = {10.1007/s10207-012-0161-x}, }