Nguyen Kim Tuan, Nguyen Vinh Thai and Luu Hong Dung 2022. A new construction method of digital signature scheme based on the discrete logarithm combining find root problem on the finite field F_p. Journal of Military Science and Technology. FEE (Dec. 2022), 164–170. DOI:https://doi.org/10.54939/1859-1043.j.mst.FEE.2022.164-170.