Bokari, A.Y. and Dewi, M.P. 2026. Digital Signature Using the SHA-512 Hash Function and the ElGamal Cryptographic Algorithm for Document Security. Mathematical Journal of Modelling and Forecasting. 3, 2 (Jan. 2026), 9–17. DOI:https://doi.org/10.24036/mjmf.v3i2.44.