Website: https://histocrypt.org/ Contact: hc24@histocrypt.org Submissions: https://easychair.org/my/conference?conf=histocrypt2024 The International Conference on Historical Cryptology (HistoCrypt 2024) invites submissions of papers to its annual conference on historical cryptology. The conference will be held in June 25-27, 2024 at the Kellogg College, Oxford and Bletchley Park, UK. Please note the date. HistoCrypt addresses all aspects of historical cryptography and cryptanalysis. “History” is understood in the broadest sense and includes contemporary history. The conference’s subjects include, but are not limited to:

The Program Committee is pleased to announce the following keynote speakers: Dr. Sarah Mainwaring, Deputy Head Cyber Defence and Risk, UK Ministry of Defence Dr Daniel Shiu, Chief Cryptographer, ARQIT Monday, 24 June at Kellogg College, Oxford 18:00 Welcome drinks Kellogg College Tuesday, 25 June at Kellogg College, Oxford All events in the Hub at Kellogg College unless otherwise stated 08:30 Registration 08:50 Welcome Michelle Waldispühl, Dermot Turing, Prof. Jonathan Michie, President of Kellogg College 09:00 Keynote 1: The legacy of Bletchley Park on UK Mathematics Daniel Shiu, Chair: Dermot Turing 10:00 Early Modern I: 3 long papers Chair: Carola Dahlke Deciphering historical syllabic ciphers George Lasry A typology for cipher key instructions in early modern times Beáta Megyesi What encryption errors can reveal: cross-cipher errors in Mary Queen of Scots’ letters Norbert Biermann 11:00 Coffee Bar area 11:30 Early Modern II: 3 short papers Chair: Elonka Dunin The keys to diplomacy: the encrypted correspondence of Saxon-Polish ministers Wackerbarth and Flemming 1700-1720 Anne-Simone Rous The enigma of Lorenzo Ventura’s cipher Paolo Bonavoglia The use of volvelles in two early modern cryptography manuals Corinne Bayerl 12:15 Early Modern III: 2 long papers Chair: Camille Desenclos Demystifying La Buse’s cryptogram and the Fiery Cross of Goa Carola Dahlke Send someone to finish Fredenburgh’s works: a Dutch ciphertext (1689) from Suriname Jörgen Dinissen 13:00 Lunch Bar area Machine exhibition I Mawby room 14:15 Philosophy and learning: 3 short papers Chair: Gerhard F.

Call for Papers: October 2023 Paper Submission Opens: December 1st, 2023 Paper Submission Deadline: January 28th, 2024 February 5th, 2024 Notification of Acceptance: March 18th, 2024 Camera Ready Manuscripts: April 21st, 2024 Main Conference: June 25-27, 2024

Paper submisson All submissions must follow the HistoCrypt style files, which are available for LaTeX (preferred) and MS Word: Template format: histocrypt.pdf MS Word Template: histocrypt.doc LaTeX Template: histocrypt.zip Papers must be submitted digitally, in PDF, and uploaded through the online conference system. The page limits for submissions are: up to ten pages for regular papers, up to four pages for short papers including bibliographic references. Paper submissions that violate the requirements will be returned to the authors.

The legacy of Bletchley Park on UK Mathematics by Daniel Shiu World War II, and Bletchley Park in particular, saw the introduction of academic mathematicians to the problems of cryptanalysis. The effect of mathematical thinking on cryptanalysis is well-studied, but in this talk we consider the opposite question: how did mathematicians’ experiences at Bletchley Park affect their subsequent mathematical work? We will consider three main themes: a shift in statistical thinking, the use of computers in mathematics, and the persistence of collaboration between individuals who met at BP.

American encryption policy 1950-1990 by Dr Sarah Mainwaring Today’s talk explores American encryption policy 1950-1990. Traditionally, documented as a battle between privacy and national security interests, we will consider examples that suggest an additional debate was ongoing between the American government and American telecommunications sector that continues until today. Back to program

Bletchley Park, Neptune, and the Kriegsmarine by David Kenyon On 5-6 June 1944 the codebreakers of Bletchley Park went to special effort to listen in on the response of the German Navy to the vast fleet of vulnerable Allied shipping crossing to Normandy that night. German message traffic from the period around D-Day survives, and Bletchley Park Trust holds a unique collection of these messages. A detailed examination of this material reveals a fascinating picture of just how effective GC&CS was in reading Naval Enigma, how this was communicated to Allied commanders, and exactly what the German navy did, or didn’t, do to repel the invasion.

Bylaws of HistoCrypt The legal bylaws of HistoCrypt can be accessed here or downloaded as a PDF. Steering Committee Carola Dahlke (chair), Deutsches Museum, Germany Benedek Láng (vice chair), Eötvös Loránd University (ELTE), Hungary Richard Bean (secretary), University of Queensland, Australia Dermot Turing (member), Kellogg College Oxford, UK Camille Desenclos (member), Université de Picardie Jules Verne, France Program Committee Michelle Waldispühl (program chair), University of Oslo, Norway Carola Dahlke (area chair), Deutsches Museum, Germany Bernhard Esslinger (area chair), University of Siegen, Germany Benedek Láng (area chair), Eötvös Loránd University (ELTE), Hungary Beáta Megyesi (area chair), Stockholm University, Sweden Eugen Antal, Slovak University of Technology in Bratislava, Slovakia Richard Bean, University of Queensland, Australia Paolo Bonavoglia, Mathesis Venezia c/o Convitto “Marco Foscarini”, Italy Claire Bowern, Yale University, United States Sara Castro, US Air Force Acadamey, United States Camille Desenclos, Université de Picardie Jule Verne, France Jorgen Dinnissen, Independent researcher, The Netherlands Ekaterina Domnina, Moscow State Lomonosov University, Russia John Dooley, Knox College, United States Magnus Ekhall, Private Researcher, Sweden Otokar Grošek, Slovak University of Technology in Bratislava, Slovakia Mihály Héder, Budapest University of Technology and Economics, Hungary Eckehard Hermann, University of Applied Sciences Upper Austria, Austria Olga Kieselmann, Universität der Bundeswehr, Germany Nils Kopal, University of Siegen, Germany Harald Lampesberger, University of Applied Sciences Upper Austria, Austria George Lasry, DECRYPT and CrypTool projects, Germany Jakub Mirka, The State Regional Archives in Pilsen, Czechia Ingo Niebel, Private Researcher, Germany Anne-Simone Rous, State Palaces, Castles and Gardens of Saxony, Germany Sondre Rønjom, The Norwegian National Security Authority and University of Bergen, Norway Klaus Schmeh, Independent Researcher, Germany Betsy Rohaly Smoot, Independent scholar, United States Gerhard F.

The proceedings of HistoCrypt 2024 are now published and available online. Find the whole volume here. Clicking on the “Collection”-button, you can access the single articles where the DOIs for the respective articles are indicated. Enjoy!

Tickets are being sold via Eventbrite. Here’s the link: https://histocrypt2024.eventbrite.com (but nothing much will happen there until tickets go on sale on 18 March!) Space is limited! You’ll need to decide what tickets you need quickly before they run out. If you are the corresponding (or sole) author of an accepted paper, special tickets are available for you. These are cheaper, and not available for general sale, to ensure that one author of each accepted paper can come to the conference.