DECRYPT Publications

2021

Láng, B. (forthc.a) The Rohonc code: tracing a historical riddle. 161 pages, accepted for publication by Penn State University Press: April, 2021.

Láng, B. (forthc.b) Transfer of knowledge in the field of universal language schemes 18th-19th centuries. In Lilla Krász, ed. Science between tradition and innovation, 2021. (accepted)

Megyesi, B. and Tudor, C. Transcription of Historical Ciphers and Keys. Guidelines, version 2.0. Dept. of Linguistics and Philology, Uppsala University, Sweden. [https://cl.lingfil.uu.se/~bea/publ/transcription-guidelines-v2.pdf]

Waldispühl, M. (2021) Variation and Change. In Condorelli, M. & Rutkowska, H., The Cambridge Handbook of Historical Orthography. Cambridge: University Press. (accepted).

2020

Chen, J., Souibgui, M. A., Fornés, A., and Megyesi, B. (2020) A Web-based Interactive Transcription Tool for Encrypted Manuscripts. In Proceedings of the 3rd International Conference on Historical Cryptology. HistoCrypt 2020. pp. 52-59. Linköping Electronic Press. [https://ep.liu.se/ecp/article.aspissue=171&article=08&volume=0]

Kopal N. (2020) Of Ciphers and Neurons – Detecting the Type of Ciphers Using Artificial Neural Networks. In Proceedings of the 3rd International Conference on Historical Cryptology. HistoCrypt 2020. pp. 77-86. Linköping Electronic Press. [https://ep.liu.se/ecp/article.asp?issue=171&article=011&volume=0]

Kopal N. and Waldispühl M. (2020) Deciphering Three Diplomatic Letters Sent by Maximilian II in 1575. Cryptologia. (accepted).

Láng, B. (2020) “Was it a Sudden Shift in Professionalization? Austrian Cryptology and a Description of the Staatskanzlei Key Collection in the Haus-, Hof- und Staatsarchiv of Vienna" In: Beata, Megyesi (ed.) In Proceedings of the 3rd International Conference on Historical Cryptology HistoCrypt 2020. Linköping University Electronic Press, Linköpings universitet, (2020) p. 87 [https://ep.liu.se/ecp/article.asp?issue=171&article=012&volume=0

Lasry, G. (2020) Solving a Tunny Challenge with Computerized Testery Methods. In Proceedings of the 3rd International Conference on Historical Cryptology. HistoCrypt 2020. [https://ep.liu.se/ecp/article.asp?issue=171&article=013&volume=0]

Lasry, G., Megyesi, B., and Kopal, N. (2020) Deciphering Papal Ciphers from the 16th to the 18th Century. Cryptologia [https://www.tandfonline.com/doi/full/10.1080/01611194.2020.1755915].

Lasry, G., Niebel, I., and Andersson, T. (2020) Deciphering German Diplomatic and Naval Attaché Messages from 1900-1915. Cryptologia. [https://www.tandfonline.com/doi/pdf/10.1080/01611194.2020.1755914?needAccess=true]

Lehofer, A. (2020) Decrypting Historical Ciphers - A Way of Mathematical Competence Development. Opus et Educatio. [http://opuseteducatio.hu/index.php/opusHU/article/view/381/665]

Megyesi, B. (2020a) Transcription of Ciphers and Keys. In Proceedings of the 3rd International Conference on Historical Cryptology. HistoCrypt 2020. pp. 106-115. Linköping Electronic Press. [https://ep.liu.se/ecp/article.asp?issue=171&article=014&volume=0]

Megyesi, B. (2020b) Transcription of Ciphers and Keys: Guidelines. Uppsala University. Sweden. [https://cl.lingfil.uu.se/~bea/publ/transcription-guidelines200221.pdf]

Megyesi, B., Esslinger, B., Fornés, A., Kopal, N., Láng, B., Lasry, G., de Leeuw, K., Pettersson, E., Wacker, A., and Waldispühl, M. (2020) Decryption of historical manuscripts: the DECRYPT project. Cryptologia. DOI: 10.1080/01611194.2020.1716410 [https://www.tandfonline.com/doi/full/10.1080/01611194.2020.1716410?scroll=top&needAccess=true]

Souibgui, M. A. and Kessentini Y. (2020) DE-GAN: A Conditional Generative Adversarial Network for Document Enhancement. IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI) DOI: 10.1109/TPAMI.2020.3022406 [https://arxiv.org/pdf/2010.08764.pdf].

Souibgui, M. A., Kessentini, Y., and Fornés, A. (2020) A conditional GAN based approach for distorted camera captured documents recovery. In Proceedings of the 4th Mediterranean Conference on Pattern Recognition and Artificial Intelligence (MedPRAI2020) (accepted) [http://www.cvc.uab.es/people/afornes/publi/conferences/2020_MedPRAI_MSouibgui.pdf].

Souibgui, M. A., Fornés, A., Kessentini, Y., and Tudor, C. (2020) A Few-shot Learning Approach for Historical Ciphered Manuscript Recognition. In Proceedings of the 25th International Conference on Pattern Recognition (ICPR2020) (accepted) [http://www.cvc.uab.es/people/afornes/publi/conferences/2020_ICPR_MSouibgui.pdf].

Tudor, C, Megyesi, B, and Láng, B. (2020) Automatic Key Structure Extraction. In Proceedings of the 3rd International Conference on Historical Cryptology. HistoCrypt 2020. pp. 146-152. Linköping Electronic Press. [https://ep.liu.se/ecp/article.asp?issue=171&article=018&volume=0]

2019

Baró A., Chen, J., Fornés, A., and Megyesi, B. (2019) Towards a Generic Unsupervised Method for Transcription of Encoded Manuscripts. In Proceedings of the 3rd International Conference on Digital Access to Textual Cultural Heritage (DATeCH2019), May 2019 Brussels, Belgium. https://cl.lingfil.uu.se/~bea/publ/datech19.pdf

Kopal, N. (2019) Cryptanalysis of Homophonic Substitution Ciphers Using Simulated Annealing with Fixed Temperature. In Proceedings of the 2nd International Conference on Historical Cryptology, HistoCrypt 2019, June 23-25, 2019, Mons, Belgium. NEALT Proceedings Series 37, Linköping Electronic Press. [http://www.ep.liu.se/ecp/158/012/ecp19158012.pdf]

Láng, B. (2019) Dead ends in breaking an unknown cipher: experiences in the historiography of the Rohonc Codex Proceedings of the 2nd International Conference on Historical Cryptology, HistoCrypt 2019, June 23-26, 2019, Mons, Belgium, Belgium. NEALT Proceedings Series 37, Linköping Electronic Press. [https://ep.liu.se/ecp/158/006/ecp19158006.pdf]

Lasry, G. (2019) A Practical Meet-in-the-Middle Attack on SIGABA, Proceedings of the 2nd International Conference on Historical Cryptology, HistoCrypt 2019, June 23-26, 2019, Mons, Belgium, Belgium. NEALT Proceedings Series 37, Linköping Electronic Press. [https://ep.liu.se/ecp/158/005/ecp19158005.pdf]

Lasry, G. (2019) Solving a 40-Letter Playfair Challenge with CrypTool 2, Proceedings of the 2nd International Conference on Historical Cryptology, HistoCrypt 2019, June 23-26, 2019, Mons, Belgium. NEALT Proceedings Series 37, Linköping Electronic Press. [https://ep.liu.se/ecp/158/010/ecp19158010.pdf]

Lasry, G., Nils Kopal, and Arno Wacker. (2019) "Cryptanalysis of Enigma double indicators with hill climbing." Cryptologia 43.4: 267-292. [https://www.tandfonline.com/doi/abs/10.1080/01611194.2018.1551253]

Megyesi, B., Blomqvist, N., and Pettersson, E. (2019) The DECODE Database: Collection of Historical Ciphers and Keys. In Proceedings of the 2nd International Conference on Historical Cryptology. HistoCrypt 2019, June 23-25, 2019, Mons, Belgium. NEALT Proceedings Series 37, Linköping Electronic Press. [https://cl.lingfil.uu.se/~bea/publ/decode-histocrypt-2019.pdf]

Pettersson, E. and Megyesi, B. (2019) Matching Keys and Encrypted Manuscripts. In Proceedings of 22nd Nordic Conference on Computational Linguistics, Nodalida 2019. [https://cl.lingfil.uu.se/~bea/publ/keys-nodalida19.pdf]

Thesis

Han, Renfei (2020) Using Attention-based Sequence-to-Sequence Neural Networks for Transcription of Historical Cipher Documents. Master’s thesis in Language Technology, Uppsala University, Sweden. [http://www.diva-portal.org/smash/record.jsf?pid=diva2%3A1470446&dswid=4822]

Johansson, Kajsa (2019) Transcription of Historical Encrypted Manuscripts: Evaluation of an Automatic Interactive Transcription Tool. Bachelor thesis in Language Technology, Uppsala University, Sweden. [http://uu.diva-portal.org/smash/get/diva2:1323635/FULLTEXT01.pdf]

Tudor, Crina (2019) Studies of Cipher Keys from the 16th Century: Transcription, Systematisation and Analysis. Master thesis in Language Technology, Uppsala University, Sweden. [http://uu.diva-portal.org/smash/get/diva2:1369404/FULLTEXT01.pdf]

This work is supported by the Swedish Research Council, grant 2018-06074: DECRYPT - Decryption of historical manuscripts.