English Japanese cryptology from the 1500s to Meiji Cited by user Fluorescent Jellyfish on 21 Jan 2023 The cipher system that the Uesugi are said to have used is a simple substitution usually known as a Polybius square or "checkerboard." The i-ro-ha alphabet contains forty…
English SubRip Cited by user Citation bot 1 on 20 Apr 2010 SubRip is a free software program for Windows which extracts subtitles and their timings from video.