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{"id":10418,"date":"2020-07-20T01:53:23","date_gmt":"2020-07-20T08:53:23","guid":{"rendered":"https:\/\/voynichportal.com\/?p=10418"},"modified":"2020-07-22T05:05:15","modified_gmt":"2020-07-22T12:05:15","slug":"fontanas-cipher-design","status":"publish","type":"post","link":"https:\/\/voynichportal.com\/2020\/07\/20\/fontanas-cipher-design\/","title":{"rendered":"Fontana’s Cipher Design"},"content":{"rendered":"\n
20 July 2020<\/p>\n\n\n\n
Giovanni Fontana’s circle-line cipher is designed to be mnemonic without being too obvious about what the symbols represent. I’ve noticed this characteristic in several medieval and Renaissance ciphers, including the cipher of Hildegard von Bingen.<\/p><\/blockquote>\n\n\n\n
The Fontana Cipher<\/h4>\n\n\n\n
Johannes de Fontana (c. 1395\u2013c. 1455) was a physician and engineer educated at Padua in the early 15th century. Fontana was interested in clockworks, and created entertaining devices, like clockwork-based skeletons, to showcase his engineering talent. But he is best known for Bellicorum instrumentorum (BSB Cod.icon. 242),<\/em> an illustrated book of devices for warfare and sieges created in Venice in the 1420s.<\/p>\n\n\n\n
The introductory page of Bellicorum instrumentorum<\/em> includes a paragraph of plaintext followed by ciphertext. Here is some of the plaintext:<\/p>\n\n\n\n