Report of Official Foreign Travel to the Netherlands May 20 - June 1, 2005

Mason, James David

doi:10.2172/850506

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2023

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“…For the digraphic index of coincidence (DIC), it is 0.0269. Compared to Mason's table (Mason, 2005) we see that random digit ciphers, naturally, have an IC and DIC of 0.1 and 0.01. These values are quite distinct from those observed here.…”

Section: Discussionmentioning

confidence: 68%

The cipher of Emperor Rudolf II’s “Alchemical Hand Bell”

Bean¹,

Gannon²,

Sarah³

2023

Linköping Electronic Conference Proceedings

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We examine a cipher found inscribed in the so-called "Alchemical Hand Bell" from the Kunstkammer of Emperor Rudolf II. We provide insight into the bell's history, a correction for an existing published transcription, perform statistical analysis of the ciphertext, and look at possible encryption methods and plaintext languages. Given the analysis, we examine the possibilities of digraphic and polyphonic ciphers and give a brief overview of how these were used in the historical context.

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Section: Discussionmentioning

confidence: 68%