Doan Thi Bich Ngoc, and T. Nguyen Dao. “Proposing a Solution to Keep the Order of the Generating Element Secret to Enhance the Security of the Digital Signature Scheme”. Journal of Military Science and Technology, vol. 110, no. 110, Apr. 2026, pp. 150-8, doi:10.54939/1859-1043.j.mst.110.2026.150-158.