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Coded Correspondence among Documents of the War Office of Matthias von Gallas
Dolejší, Barbora ; Ebelová, Ivana (advisor) ; Hojda, Zdeněk (referee)
This thesis is a contribution to the research of cryptography at the time of the early modern period. Its aim is to analyze coded correspondence found among other documents of the War Office of Matthias Gallas. First of all, the number of the coded documents is compared to the whole paperwork of Gallas's War Office to identify the ratio of encrypted writings. I also analyze sample letters to demonstrate kinds of ciphers that were used in military sphere during the Thirty Year's War. The sample of the coded letters is chosen in order to present correspondents of different social ranks even though the majority comes from commanders. I drew attention to a topic of letters intercepted by an enemy as well. I outline a content of a few chosen letters although the emphasis is mainly put on palaeography. Studied correspondence falls under the first two leadership periods of Matthias Gallas. A list of all encrypted documents is attached to this thesis as well.

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