The Enigma of Franceschi’s Falso Scontro

Authors

  • Paolo Bonavoglia

DOI:

https://doi.org/10.3384/ecp188390

Keywords:

Cryptanalysis, Treatise of ciphers Venice, Codebreakers, Syllable cipher, Homophones nulls, Frequency analysis, Giovanni Soro, G.B.Ludovici, Alvise Borghi, Z.F. Marin

Abstract

Franceschi’s recently discovered folder of writings sheds new light on his Cifra delle Caselle, and Falso Scontro ciphers; in fact he had in mind a uera ziffra (true cipher) a concept that, in a suggestive parallel, resembles the perfect Shannon cryptosystem, while the Falso Scontro (fake key) cipher closely resembles Vernam cipher.

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Published

2022-06-14

Issue

Proceedings of the 5th International Conference on Historical Cryptology HistoCrypt 2022

Section

Contents