Abstract is missing.
- PrefaceCarola Dahlke. [doi]
- HCPortal Modules for Teaching and Promoting CryptologyEugen Antal, Pavol Zajac. 1-11 [doi]
- Solving a Mystery From the Thirty Years'War: Karel Rabenhaupt ze Such'e's Encrypted Letter to Landgravine Amalie ElisabethEugen Antal, Pavol Zajac, Jakub Mírka. 12-24 [doi]
- Cryptodiagnosis of "Kryptos K4"Richard Bean 0001. 25-33 [doi]
- Unsupervised Alphabet Matching in Historical Encrypted Manuscript ImagesJialuo Chen, Mohamed Ali Souibgui, Alicia Fornés, Beáta Megyesi. 34-37 [doi]
- The Imperial Japanese Navy IKA Cipher MachineChris Christensen. 38-47 [doi]
- Island Ramanacoil a Bridge too Far. A Dutch Ciphertext from 1674Jörgen Dinnissen, Nils Kopal. 48-57 [doi]
- 3D Digitalization of historical cipher machines using computed tomographyMatthias Göggerle, Carola Dahlke. 58-61 [doi]
- Documents of Polish-Soviet War of 1919-1920 CodebreakingMarek Grajek. 62-69 [doi]
- Experimental Analysis of the Dorabella Cipher with Statistical Language ModelsBradley Hauer, Colin Choi, Anirudh S. Sundar, Abram Hindle, Scott Smallwood, Grzegorz Kondrak. 70-79 [doi]
- Two Encrypted Diplomatic Letters Sent by Jan Chodkiewicz to Emperor Maximilian II in 1574-1575Nils Kopal, Michelle Waldispühl. 80-89 [doi]
- An alchemical cipher in a shared notebook of John and Arthur Dee (Sloane MS 1902) [Work In Progress]Sarah Lang, Megan Piorko. 90-93 [doi]
- Deciphering a Letter to Louis XIV from his Ambassador to the Dutch Republic, le Comte d'Avaux, 1684George Lasry. 94-100 [doi]
- Modern Cryptanalysis of Schlüsselgerät 41George Lasry. 101-110 [doi]
- A Massive Machine-Learning Approach For Classical Cipher Type Detection Using Feature EngineeringErnst Leierzopf, Nils Kopal, Bernhard Esslinger, Harald Lampesberger, Eckehard Hermann. 111-120 [doi]
- Key Design in the Early Modern Era in EuropeBeáta Megyesi, Crina Tudor, Benedek Láng, Anna Lehofer. 121-130 [doi]
- Cryptographic postcardsTobias Schrödel. 131-136 [doi]
- The American Army BombeDermot Turing. 137-142 [doi]
- The Upplandic Non-Lexical Rune Stones: Ciphers or Nonsense?Victor Wase. 143-149 [doi]