Wun-She YapRaphael C.-W. PhanBok-Min GoiWei-Chuen YauSwee-Huay Heng2024-11-122024-11-122016-10http://dx.doi.org/10.1016/j.jvcir.2016.06.005https://dspace-cris.utar.edu.my/handle/123456789/6736On the effective subkey space of some image encryption algorithms using external keyjournal-article