On the Geometric Substitution Cipher, the Eight Concealment Tricks, and the Underlying Language of Voynich Manuscript By Hossam Aboulfotouh

https://www.academia.edu/150251179/On_the_Geometric_Substitution_Cipher_the_Eight_Concealment_Tricks_and_the_Underlying_Language_of_Voynich_Manuscript?email_work_card=title For nearly six centuries, the decipherment of Voynich Manuscript has baffled scholars and cryptologists. None of the previous attempts succeeded to find out the used coding method in this manuscript; hence, scholars called it the world’s most mysterious book. This work, therefore, explains the design of its cipher and identifies its underlying language. It demonstrates the mathematical idea and the method of “design by addition” that an anonymous proficient designer has used in order to create over one hundred glyphs, using strokes, circles, and half circles. It proves that this designer used the grid of the rectangle 6*8 units and its diagonal of 10 units to create glyphs so that each denotes numerically the rank of a specific letter in Abjd (Abjad) sequence, from one to twenty-eight. It shows as well that the designer used eight concealment tricks as extra measures, which include the partial polyalphabetic substitution of seven Abjd ranks, deleting most of the prepositions and conjunction words, and changing the positions of words in each sentence, in order to conceal the geometric cipher and the encoded language. Then, based on the transliteration and translation of the introductory paragraph, in addition to six sentences and a hundred words from different pages, this work proves that the underlying language of the manuscript is the medieval Hindi of Hindustan. The translation samples demonstrate that the manuscript appears to contain Indian folklore chatters about, e.g., path of the banyan trees, the jackal and the partridge, and the lake of surprises, etc., which is narrated by the idols that metaphorically represent the beloved women in the Hindustani culture; and its writer’s nickname is Biḏo. ...