Safer Net - Kryptografie im Internet und Intranet. - Klaus Schmeh (dpunkt, 1998)

A Method for Developing Public Key Infrastructure Models. - Klaus Schmeh (CQRE, 1999)

Kryptografie und Public-Key-Infrastrukturen im Internet (2. Aufl.). - Klaus Schmeh (dpunkt.verlag, 2001)

The East German Encryption Machine T-310 and the Algorithm It Used. - Klaus Schmeh (Cryptologia, 2006)

Kryptografie - Verfahren, Protokolle, Infrastrukturen (3. Aufl.). - Klaus Schmeh (dpunkt.verlag, 2007)

A Critical View on RFC 3647. - Klaus Schmeh (EuroPKI, 2007)

NSA Suite B and its significance for non-USA organisations. - Klaus Schmeh (ISSE, 2008)

A Taxonomy of Cryptographic Techniques for Securing Electronic Identity Documents. - Klaus Schmeh (ISSE, 2009)

Enigma's Contemporary Witness: Gisbert Hasenjaeger. - Klaus Schmeh (Cryptologia, 2009)

Alexander von Kryha and His Encryption Machines. - Klaus Schmeh (Cryptologia, 2010)

The Pathology of Cryptology - A Current Survey. - Klaus Schmeh (Cryptologia, 2012)

A Milestone in Voynich Manuscript Research: Voynich 100 Conference in Monte Porzio Catone, Italy. - Klaus Schmeh (Cryptologia, 2013)

Second Charlotte International Cryptologic Symposium. - Klaus Schmeh (Cryptologia, 2015)

Encrypted Books: Mysteries that Fill Hundreds of Pages. - Klaus Schmeh (Cryptologia, 2015)

Review of the 15th NSA Cryptologic History Symposium. - Klaus Schmeh (Cryptologia, 2017)

Review of the 2nd Historical Ciphers Colloquium in Kassel, Germany. - Klaus Schmeh (Cryptologia, 2017)

Review of Unsolved: The History and Mystery of the World's Greatest Ciphers from Ancient Egypt to Online Secret Societies by Craig Bauer. - Klaus Schmeh (Cryptologia, 2017)

Neue Signatur-Gesetzgebung: Sind aller guten Dinge drei? - Klaus Schmeh (Datenschutz und Datensicherheit, 2017)

Cryptographic Security Analysis of T-310. - Nicolas T. Courtois; Klaus Schmeh; Jörg Drobick; Jacques Patarin; Maria-Bristena Oprisanu; Matteo Scarlata; Om Bhallamudi (IACR Cryptol. ePrint Arch., 2017)

Examining The Dorabella Cipher with Three Lesser-Known Cryptanalysis Methods. - Klaus Schmeh (HistoCrypt, 2018)

Feistel ciphers in East Germany in the communist era. - Nicolas T. Courtois; Jörg Drobick; Klaus Schmeh (Cryptologia, 2018)

Review of the 3rd European Historical Ciphers Colloquium in Smolenice, Slovakia. - Klaus Schmeh (Cryptologia, 2018)

Review of The Voynich Manuscript by Raymond Clemens and The Voynich Manuscript: The world's most Mysterious and Esoteric Codex by Stephen Skinner. - Klaus Schmeh (Cryptologia, 2018)

Cryptanalysis of an Early 20th Century Encrypted Journal. - Tony Gaffney; Klaus Schmeh (HistoCrypt, 2019)

Linear cryptanalysis and block cipher design in East Germany in the 1970s. - Nicolas T. Courtois; Maria-Bristena Oprisanu; Klaus Schmeh (Cryptologia, 2019)

The Zschweigert Cryptograph - A Remarkable Early Encryption Machine. - Klaus Schmeh (HistoCrypt, 2020)

Crypto Currency Regulation and Law Enforcement Perspectives. - Nicolas T. Courtois; Kacper T. Gradon; Klaus Schmeh (CoRR, 2021)

The Voynich Manuscript Compared with Other Encrypted Books. - Klaus Schmeh; Elonka Dunin (VOY, 2022)

How we set new world records in breaking Playfair ciphertexts. - Elonka Dunin; Magnus Ekhall; Konstantin Hamidullin; Nils Kopal; George Lasry; Klaus Schmeh (Cryptologia, 2022)

Benutzerfreundliche Mail-Verschlüsselung bei einer Bundesbehörde. - Martin Peeckhaus; Klaus Schmeh (Datenschutz und Datensicherheit, 2022)

S/MIME und PGP im selben Client. - Klaus Schmeh; Matthias Edelhoff (Datenschutz und Datensicherheit, 2022)

A WW2 device for breaking the M-209 encryption machine. - Magnus Ekhall; Klaus Schmeh (HistoCrypt, 2023)

Review of the second edition of Craig Bauer's " Secret History: The Story of Cryptology, Second Edition "Bauer, Craig P. Secret History: The Story of Cryptology. Second Edition . CRC Press, Boca Raton, FL, 2021. 650 pages, Hardcover. ISBN 978-1138061231.: Bauer, Craig P. CRC Press, Boca Raton, FL, 2021. 650 pages, hardcover. ISBN 978-1138061231. - Elonka Dunin; Klaus Schmeh (Cryptologia, 2024)

Zero-Touch Onboarding. - Kerstin Honskamp; Klaus Schmeh (Datenschutz und Datensicherheit (dud), 2025)