Mezher Rasheed , I. and Abdulabbas Hassoon , K. 2025. A Secure Hybrid Symmetric Cryptosystem Combining Huffman Coding, Affine Transformation, and Cartesian Graphs. Pure Sciences International Journal of Kerbala. 2, 7 (Sep. 2025), 58–64. DOI:https://doi.org/10.53851/psijk.v2.i7.58-64.