My Scientific Publications

Here is a list of my publications that have appeared in the journal Cryptologia or in academic conference proceedings and anthologies.

Cryptologia

Cryptologia is a scholarly journal that focuses primarily on the history of cryptography. I am a member of the editorial board. Here are my previous publications in this journal (unfortunately, most of them are not available online):

  • Klaus Schmeh, Elonka Dunin, Magnus Ekhall, Konstantin Hamidullin, Nils Kopal, George Lasry: How we set new world records in breaking Playfair ciphertexts. Cryptologia Volume 45, Nr. 5, 2021
  • Klaus Schmeh et. al.: In memoriam: Thomas Ralph Erskine CB (1933 – 2021). Cryptologia, Volume 45, Nr. 4, 2021, S. 289-308
  • Nicolas T. Courtois, Maria-Bristena Oprisanu, Klaus Schmeh: Linear cryptanalysis and block cipher design in East Germany in the 1970s. Cryptologia Volume 43, Nr. 1, 2019, S. 2-22
  • Nicolas T. Courtois, Jörg Drobick, Klaus Schmeh: Feistel ciphers in East Germany in the communist era. Cryptologia, Volume 42, Nr. 5, 2018, S. 427-444
  • Klaus Schmeh: Review of The Voynich Manuscript by Raymond Clemens and The Voynich Manuscript: The world’s most Mysterious and Esoteric Codex by Stephen Skinner. Cryptolgia, Volume 42, 2018, S. 265-270
  • Klaus Schmeh: Review of the 3rd European Historical Ciphers Colloquium in Smolenice, Slovakia. Cryptologia, Volume 42, Nr. 2, 2018, S. 176-182
  • Klaus Schmeh: Review of Unsolved: The History and Mystery of the World’s Greatest Ciphers from Ancient Egypt to Online Secret Societies by Craig Bauer. Cryptologia, Volume 41, 2017, Nr. 5, 2017, S. 485-490
  • Klaus Schmeh et. al.: David Hamer, family man and enigma expert, remembered and missed. Cryptologia, Volume 41, Nr. 4, 2017, S. 289-294
  • Klaus Schmeh: Review of the 15th NSA Cryptologic History Symposium. Cryptologia, Volume 41, Nr. 1, 2017, S. 73-80
  • Klaus Schmeh: Second Charlotte International Cryptologic Symposium. Cryptologia, Volume 39, Nr. 1, 2015, S. 84-91
  • Klaus Schmeh: Encrypted Books: Mysteries that Fill Hundreds of Pages. Cryptologia, Volume 39, Nr. 4, 2015, S. 342-361
  • Klaus Schmeh: A Milestone in Voynich Manuscript Research: Voynich 100 Conference in Monte Porzio Catone, Italy. Cryptologia, Volume 37, Nr. 3, 2013, S. 193-203
  • Klaus Schmeh: The Pathology of Cryptology — A Current Survey. Cryptologia, Volume 36, Nr. 1, 2012, S. 14-45
  • Klaus Schmeh: Alexander von Kryha and His Encryption Machines. Cryptologia, Volume 34, Nr. 4, 2010, S. 291-300
  • Klaus Schmeh: Enigma’s contemporary witness: Gisbert Hasenjaeger. Cryptologia, Volume 33, Nr. 4, 2009, S. 343-346
  • Klaus Schmeh: The East German Encryption Machine T-310 and the Algorithm It Used. Cryptologia, Volume 30, Nr. 3, 2006, S. 251-257

Anthologies

  • Klaus Schmeh: Ist das Voynich-Manuskript längst entschlüsselt? In: Das Voynich-Manuskript. The Voynich Manuscript. The Complete Edition: Gesamtdarstellung aller Tafeln der illuminierten Handschrift (Deutsch/Englische Ausgabe), pp. 263-267 Favoritenpresse Berlin 2024
  • Klaus Schmeh: Why Turing Cracked The Enigma And The Germans Did Not. In: S. Barry Cooper, J. van Leeuwen (Ed.): Alan Turing: His Work and Impact, pp. 432-438 Elsevier Science Amsterdam 2013

Conference Proceedings

The following works of mine have been published in conference proceedings:

  • Elonka Dunin, Jarl van Eycke, Louie Helm, Klaus Schmeh: Solving a 750-Letter General Bigram Substitution Challenge. In: E. Antal, P. Marak (Ed.): Proceedings of the 8th International Conference on Historical Cryptology HistoCrypt, pp. 133-140 NEALT Proceedings Series 2025
  • Elonka Dunin, Didier Müller, Klaus Schmeh: French encrypted newspaper advertisements in the 19th century. In: M. Waldispühl, B. Megyesi (Ed.): Proceedings of the 7th International Conference on Historical Cryptology HistoCrypt, pp. 68-75 NEALT Proceedings Series 2024
  • Magnus Ekhall, Klaus Schmeh: A WW2 device for breaking the M-209 encryption machine. In: C. Dahlke, M. Göggerle (Ed.): Proceedings of the 6th International Conference on Historical Cryptology HistoCrypt, pp. 55-62 Linköping Electronic Conference Proceedings Linköping 2023
  • Tony Gaffney, Klaus Schmeh: Cryptanalysis of an Early 20th Century Encrypted Journal. In: E. Antal, K. Schmeh: Proceedings of the 2nd International Conference on Historical Cryptology, HistoCrypt 2019, Mons, Belgium. Linköping Electronic Conference Proceedings Linköping 2019
  • Klaus Schmeh: Cracking Enigma Messages from WW2. In V. MATYÁŠ, M. STEHLÍK (Ed.): Santa’s Crypto Get-Together 2012, pp. ???-??? Bílovice nad Svitavou: Trusted Network Solutions, 2012
  • Klaus Schmeh: Chip-Implantate – Science-Fiction-Horror oder segensreiche Zukunftstechnologie? In: M. Fluhr (Ed.): OMNICARD 2012, pp. 464-486 inTIME Berlin 2012
  • Klaus Schmeh: The Voynich Manuscript: The Book Noone Can Read. In V. MATYÁŠ, M. STEHLÍK (Ed.): Santa’s Crypto Get-Together 2011, pp. ???-??? Bílovice nad Svitavou: Trusted Network Solutions, 2011
  • Klaus Schmeh: Implementierung einer IDM-integrierten Certification Authority. In: P. Schartner, E. Weippl (Ed.): DACH Security 2010, pp. 297-304 syssec Frechen 2010
  • Klaus Schmeh: Covert Channels in elektronischen Ausweisen. In: C. Paulsen (Ed.): Sicherheit in vernetzten Systemen 2010, 17. DFN-Workshop, pp. B1-B7 BoD Norderstedt 2010
  • Klaus Schmeh: A Taxonomy of Cryptographic Techniques for Securing Electronic Identity Documents. In: N. Pohlmann, H. Reimer, W. Schneider (Ed.): ISSE 2009, Securing Electronic Business Processes, pp. 345-356 Vieweg+Teubner Verlag Wiesbaden 2009
  • Klaus Schmeh: Quo vadis, Smartcard-Middleware. In: P. Horster, P. Schartner (Ed.): DACH Security 2009, pp. 284-289 syssec Frechen 2009
  • Klaus Schmeh: Zutrittskontrolle und Identity Management. In: M. Fluhr (Ed.): OMNICARD 2009, pp. ???-??? inTIME Berlin 2009
  • Klaus Schmeh: NSA Suite B and its significance for non-USA organisations. In: N. Pohlmann, H. Reimer, W. Schneider (Ed.): ISSE 2008, Securing Electronic Business Processes, pp. 291-295 Vieweg+Teubner Verlag Wiesbaden 2008
  • Klaus Schmeh: E-Mail-Krypto-Gateways. In: P. Horster (Ed.): DACH Security 2008, pp. 455-462 syssec Frechen 2008
  • Klaus Schmeh: A Critical View on RFC 3647. In: EuroPKI 2007, LNCS 4582, pp. 369-374 Springer-Verlag Berlin Heidelberg 2007
  • Klaus Schmeh: Certification Practice Statement und Certificate Policy nach RFC 3647. In: P. Horster (Ed.): DACH Security 2007, pp. ???-??? syssec Frechen 2007
  • Klaus Schmeh: Key Recovery und Message Recovery in Public-Key-Infrastrukturen. In: P. Horster (Ed.): Elektronische Geschäftsprozesse 2004, pp. 197-207 syssec Frechen 2004
  • Klaus Schmeh: A Method for Developing Public Key Infrastructure Models. In: R. Baumgart (Ed.): CQRE’99, LNCS 1740, pp. 119-126, 1999. Springer-Verlag Berlin Heidelberg 1999
  • Klaus Schmeh: E-Mail-Verschlüsselungsstandards. In: A. Röhm, D. Fox, R. Grimm, D. Schoder (Hrsg.): Sicherheit und Electronic Commerce – Konzepte, Modelle, technische Möglichkeiten. Proceedings des Workshops WSSEC’98, DuD-Fachbeiträge, Vieweg, Braunschweig/Wiesbaden 1999
  • Klaus Schmeh: Aufbau einer Public-Key-Infrastruktur. In I. Heinen (Hrsg.): Internet – E-Business-Strategein für die Unternehmensentwicklung. Deutscher Internet Kongress Karlsruhe 2000, Dpunkt-Verlag, Heidelberg 2000
  • Klaus Schmeh: Public-Key-Infrastrukturen in der Praxis. In I. Heinen (Hrsg.): Internet – mit E-Commerce auf dem Weg zum wirtschaftlichen Erfolg. Deutscher Internet Kongress Karlsruhe 1999, Dpunkt-Verlag, Heidelberg 1999
  • Klaus Schmeh: Kryptographie-Produkte – eine Auswahl. In I. Heinen (Hrsg.): Internet – von der Idee zum kommerziellen Einsatz. Deutscher Internet Kongress Frankfurt 1998, Dpunkt-Verlag, Heidelberg 1998