Khairani, Mufida, Herlina Harahap, Yunita Sari Siregar, and Yessy Fitri Annisa Lubis. “The Implementation Of Discrete Cosine Transform (DCT) And Blowfish Methods In Digital Video Security ”. Sinkron : jurnal dan penelitian teknik informatika 6, no. 1 (February 2, 2022): 232-242. Accessed August 26, 2026. https://www.jurnal.polgan.ac.id/index.php/sinkron/article/view/11286.