News

• 17 July 2025. Presented slides are available.

• 24 May 2025. The (preliminary) program is available.

• 24 May 2025. We are happy to announce that Fabiana Da Pieve (European Commission) and Felix Wissel (Deutsche Telekom) will give invited keynotes.

• 21 May 2025. List of accepted talks has been added.

We thank the QCI-CAT and QSNP projects for their support.

About the Workshop

This workshop aims to explore the synergies between (symmetric/asymmetric) quantum-safe and quantum cryptography. A leading example is the design of Hybrid Authenticated Key Exchange (HAKE) protocols that combine conventional, post-quantum, and quantum cryptography. While the topic is traditional, several new approaches have been proposed recently. The issue is pressing to support the design of the future European Quantum Communication Infrastructure (EuroQCI) that will span the European Union. Beyond HAKE, quantum-safe cryptography has been used to build quantum protocols that demonstrate a quantum advantage (e.g., quantum oblivious transfer). This workshop will provide researchers, engineers, and practitioners a platform to discuss recent advancements. 

The objectives are: 

• Foster collaboration between quantum-safe (such as PQC) and quantum cryptographers. 

• Discuss recent advances and challenges. 

• Explore practical implementations and standardization efforts. 

• To provide a platform for presenting academic and applied work in the field.

Organizers

• Ludovic Perret (EPITA, Sorbonne University, France)  

• Christoph Striecks (AIT Austrian Institute of Technology, Austria)

Program Committee

• Romain Alléaume (Télécom Paris, Institut Polytechnique de Paris, INRIA, France) 

• Christopher Battarbee (Sorbonne University, France) 

• Carlos Cid (Simula UiB, Norway, and Okinawa Institute of Science and Technology, Japan)

• Eleni Diamanti (CNRS, Sorbonne University, France)

• Benjamin Dowling (King's College London, UK)

• Alex Grilo (CNRS, Sorbonne University, France)

• Delaram Kahrobaei (CUNY QC, GC, University of York, NYU, USA) 

• Elham Kashefi (NQCC, University of Edinburgh, CNRS)

• Vicente Martin (CCS, U. Politécnica de Madrid, Spain)

• Sebastian Ramacher (AIT Austrian Institute of Technology, Austria)

• Timothy Spiller (University of York, UK)

Invited Keynotes

• Fabiana Da Pieve (European Commission). EU-actions for a quantum-safe future and efforts needed to bring together different communities. Slides

• Felix Wissel (Deutsche Telekom). QKD @ Deutsche Telekom.

List of Accepted Papers and Contributed Talks

• Thomas Camus and Kevin Layat (both ID Quantique). Improving security and efficiency of key distribution in complex QKD networks.
Slides

• Jaime S. Buruaga (UPM), Augustine Bugler (AIT), Juan P. Brito, Vicente Martin (both UPM) and Christoph Striecks (AIT). Versatile Quantum-Safe Hybrid Key Exchange and Its Application to MACsec. Slides

• Francesco Stocco, Edoardo Signorini (both Telsy) and Claudia De Lazzari (QTI). QKD (Re)Initialization via PQC: An Industrial Security-Usability Trade-off.
Slides

• Antoine Gansel, Juliane Krämer (both University of Regensburg), Tim Schumacher (TU Darmstadt), Patrick Struck (University of Konstanz), Maximilian Tippmann and Thomas Walther (both TU Darmstadt). Field-Tested Authentication for Quantum Key Distribution and DoS Attacks. Slides

• Elina Kalnina, Rihards Balodis, Edgars Celms, Sergejs Kozlovics, Inara Opmane, Krisjanis Petrucena, Edgars Rencis and Juris Viksna (all Institute of Mathematics and Computer Science, University of Latvia). Integration of PQC and QKD: Applications, Challenges and Implementation Frameworks. Slides

• Ottó Hanyecz (Eötvös Loránd University, HUN-REN Wigner Research Centre for Physics), Nándor Kelecsényi, Gergely Zsolt Kovács, Péter Ligeti and Ádám Nagy (all Eötvös Loránd University). Smart Key Management System for Growing QKD Networks. Slides

• Francesco Mazzoncini (Orange), Balthazar Bauer (CNRS), Peter Brown and Romain Alléaume (both Telecom Paris). Hybrid Quantum Cryptography from Communication Complexity. Slides

• Lucas Hanouz (LIP6, Sorbonne University & Veriqloud), Alex Bredariol-Grilo (LIP6, Sorbonne University & CNRS France) and Anne Marin (Veriqloud). Security of a secret sharing protocol on the Qline. Slides

• Eleni Diamanti, Alex Bredariol Grilo, Adriano Innocenzi (all Sorbonne Université, LIP6), Pascal Lefebvre (KTH Royal Institute of Technology), Verena Yacoub and Álvaro Yángüez (both Sorbonne Université, LIP6). Practical Quantum Oblivious Transfer from One-Way Functions. Slides

Program 

Call for Papers and Contributed Talks (via EasyChair)

Authors are invited to submit regular papers, which must adhere to the original LNCS format (see https://www.springer.com/gp/computer-science/lncs/conference-proceedings-guidelines), with a page limit of up to 18 pages (excluding references and clearly marked appendices). Submitted papers will be reviewed by the program committee for their suitability and relevance to the QSHC audience. We welcome SoK (Systematization of Knowledge) papers in particular. Post-proceedings will be published in Springer’s LNCS series.

Moreover, authors are invited to submit extended abstracts for contributed talks, which must adhere to the original LNCS format, with a page limit of up to 2 pages (excluding references). Submitted abstracts for contributed talks will be reviewed by the program committee for their suitability and relevance to the QSHC audience. Since this workshop does not publish formal proceedings for extended abstracts, authors may submit those based on works already submitted or recently published in other venues and works in progress intended for future submission elsewhere.

Please clearly indicate in your submission title if you are submitting a regular paper or a contributed talk. At least one author of each accepted submission is required to register for the workshop. Please check the ACNS registration website for further information: http://acns2025.fordaysec.de/registration. 

• Call for contributions: https://easychair.org/cfp/QSHC25

• Submission page: https://easychair.org/conferences/?conf=qshc25

• Deadline for contributions: March 31, 2025 (AoE) 

  • Deadline extended to April, 14th, 2025 (AOE)

• Notifications: May 2th, 2025

• Workshop: June 25, 2025

For the workshop, we anticipate the following list of topics (but not limited to):

• Hybrid Authenticated Key Exchange (HAKE) combining conventional, post-quantum, and quantum cryptography for key exchange

• Quantum-Safe Hybrid Cryptography, i.e., (symmetric/asymmetric) quantum-safe and quantum cryptography such as hybrid PQC/quantum cryptography protocols beyond HAKE

• Secure Quantum Computing

• (Hybrid) Quantum-Safe Standardization Efforts

• Topics related to the European Quantum Communication Infrastructure (EuroQCI)