Send someone to finish Fredenburgh’s works. A Dutch ciphertext (1689) from Suriname

dc.contributor.authorDinnissen, Jörgen
dc.contributor.authorKopal, Nils
dc.contributor.editorWaldispühl, Michelle
dc.contributor.editorMegyesi, Beáta
dc.date.accessioned2024-05-08T11:05:40Z
dc.date.available2024-05-08T11:05:40Z
dc.date.issued2024
dc.description.abstractA ciphertext without its corresponding key was found in the archives from the Dutch colony Suriname, in the National Archives at The Hague. We were able to decrypt it through cryptanalysis and with the use of CrypTool2. The revealed plaintext contains a letter with military sensitive information and the name of Fredenburgh, who served as Governor ad interim from 1688 to 1689. It was sent in May 1689 by Governor Van Scharphuijsen to his directors in Amsterdam. Since 1689, the Society of Suriname (SvS) used ciphers for its militarily sensitive information. Ciphertext U3 was sent during the Nine Years’ War (1688-1697) when the Dutch were at war with the French. The letter was encrypted as a precaution against possible interception by the (French) enemy.
dc.identifier.issn1736-6305
dc.identifier.urihttps://hdl.handle.net/10062/98466
dc.identifier.urihttps://doi.org/10.58009/aere-perennius0091
dc.language.isoen
dc.publisherTartu University Library
dc.relation.ispartofseriesNEALT Proceedings Series 53
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectSociëteit van Suriname
dc.subjectDutch transplantation colony Suriname
dc.subjectGovernor Van Scharphuijsen
dc.subjectVan Fredenburgh
dc.subjectCompany cipher
dc.subjectCiphertext
dc.subjectCryptanalysis
dc.subjectCrypTool 2
dc.subjectHomophonic substitution cipher
dc.subjectThree keys and their (not) shared selements
dc.subjectAssignment as mapping between plaintext and code element
dc.titleSend someone to finish Fredenburgh’s works. A Dutch ciphertext (1689) from Suriname
dc.typeArticle

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