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Various codes and ciphers used through history are described.
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SINCE 2008 © S.Tomokiyo (友清理士)
(originally at http://www.h4.dion.ne.jp/~room4me/america/code/ and http://www.geocities.jp/f_von_schiller/code/ and moved to this fc2 (cryptiana) domain on 21 September 2014) 作者のホームページ