Bellaso Ciphers

In 1553, Giovan Battista Bellaso [Note: not “Belaso”, this was a typo, however much it gets repeated on the Internet and in library catalogues] published a cryptography manual called La Cifra del Sig. Giovan Battista Bel[l]aso, dedicated to Girolamo Ruscelli, followed by two other editions in 1555 and 1564. As with Alexander d’Agapeyeff, Simon Singh … Continue reading Bellaso Ciphers