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Studies of Cipher Keys from the 16th Century: Transcription, Systematisation and Analysis
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Languages, Department of Linguistics and Philology.
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In historical cryptography, a cipher key represents a set of rules by which we can convert between plaintext and ciphertext within an encryption system. Presently, there are not many studies that focus on analysing keys,especially not on a large scale or done in a systematic manner. In this paper, we describe a uniform transcription standard for the keys in the DECODE database. This way, we intend to lay a strong foundation to facilitate further studies on large sets of key transcriptions. We believe that a homogeneous set of transcriptions would be an ideal starting point for comparative studies, especially from a chronological perspective, as this can reveal potential patterns in the evolution of encryption methods. We also build a script that can perform an in-depth analysis of the components of a key, using our standardized transcription files as input. Finally, we give a detailed account of our findings and show that our method can reliably extract valuable information from the transcription file, such as the method of encryption or the types of symbols used for encoding, without the need of additional manual analysis of the original key.

Place, publisher, year, edition, pages
2019. , p. 50
Keywords [en]
keys, ciphers, historical keys, cryptography, key transcription
National Category
Language Technology (Computational Linguistics)
Identifiers
URN: urn:nbn:se:uu:diva-396922OAI: oai:DiVA.org:uu-396922DiVA, id: diva2:1369404
Subject / course
Language Technology
Educational program
Master Programme in Language Technology
Presentation
2019-10-07, 15:15 (English)
Supervisors
Examiners
Available from: 2019-11-12 Created: 2019-11-12 Last updated: 2019-11-12Bibliographically approved

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Language Technology (Computational Linguistics)

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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