Mays M. Taher and Dr. Loay E. George 2022. A digital signature system based on hand geometry - Survey: Basic Components of Hand-based Biometric System. Wasit Journal of Computer and Mathematics Science. 1, 1 (Mar. 2022), 1–9. DOI:https://doi.org/10.31185/wjcm.Vol1.Iss1.18.