Wardhono, Wibisono Sukmo, Nurizal Dwi Priandani, Mahardeka Tri Ananta, Komang Candra Brata, and Herman Tolle. 2018. “End-to-End Privacy Protection for Facebook Mobile Chat Based on AES With Multi-Layered MD5”. International Journal of Interactive Mobile Technologies (iJIM) 12 (1):pp. 160-167. https://doi.org/10.3991/ijim.v12i1.7472.