This year, three papers by the QUSAC group were accepted at the renowned ASIACRYPT conference. The 31st edition of the International Conference on the Theory and Application of Cryptology and Information Security – ASIACRYPT 2025 – will take place this year from December 8-12 in Melbourne, Australia. Below are brief summaries of the three accepted papers:

From August 3rd to 8th, Sebastian Spindler attended the workshop “Isogeny Graphs in Cryptography” in Canada. In his lightning talk “On the diameter of the supersingular ℓ-isogeny graph” Sebastian presented part of his new preprint “Exploring Kaneko’s bound: On multi-edges, loops and the diameter of the supersingular ℓ-isogeny graph” that he recently published together with Sebastiano Boscardin from the Eindhoven University of Technology.

From July 6th to 11th, the QuSAC group attended the 2025 edition of ArcticCrypt – the world’s northernmost cryptography conference – in Longyearbyen, Svalbard. Prof. Slamanig was invited to chair the conference's session on "Mathematical Aspects of Cryptography", and Sebastian Spindler presented the paper “More Efficient Isogeny Proofs of Knowledge via Canonical Modular Polynomials”.

The 23rd International Conference on Applied Cryptography and Network Security (ACNS 2025) was held in Munich, Germany, at the Munich Urban Co-Lab on 23–26 June 2025. In this year’s edition, Prof. Slamanig served as the Poster Chair of the conference.

A researcher from the QuSAC lab (Marzio Mula) attended the CrypTO Conference in Turin, held on May 22–23, 2025. He presented the talk “Representing isogenies via (classical, canonical, Atkin...) modular polynomials”, based on joint work with the QuSAC group, Marc Houben, and Sören Kleine.

From May 4th to 8th, the 44th edition of Eurocrypt — one of the world’s leading scientific conferences in the field of cryptography took plase at the RIU Hotel in Madrid, Spain. Each year, the event showcases the most significant advances in cryptographic research.

The paper "More Efficient Isogeny Proofs of Knowledge via Canonical Modular Polynomials" by the QuSAC group and CODE colleague Sören Kleine has been accepted for publication at the CRYPTO 2025 conference, which will take place in Santa Barbara, USA on August 17-21, 2025.

Last week Sebastian Spindler attended the SQIparty2025, a workshop on isogeny-based cryptography that was held in Lleida, Spain on April 28-30, 2025. Between many interesting talks on SQIsign, higher-dimensional techniques as well as related topics and the more interactive skillshare sessions, the workshop provided the perfect opportunity to learn about and discuss current developments in isogeny-based cryptography, even in the face of the countrywide power outage in Spain.

A researcher from QuSAC (Thomas den Hollander) recently travelled to Sofia to attend ZKProof 7, the leading initiative focusing on the development and standardization of zero-knowledge proofs. There he presented research by the QuSAC group and met other researchers in the area of proof systems and zero-knowledge.

From the 3rd to the 5th of March, Sebastian Spindler and Thomas den Hollander visited the Young Researcher Crypto Seminar (YRCS) in Konstanz. There they both presented recent QuSAC research on proving knowledge of isogenies. They also used the opportunity to meet fellow early career researchers and discuss new developments in cryptology.

The paper "More Efficient Isogeny Proofs of Knowledge via Canonical Modular Polynomials" by the QuSAC group and CODE colleague Sören Kleine was recently accepted for the ArcticCrypt 2025 conference which will take place in Longyearbyen, Svalbard on July 6th-11th 2025.

On 19 November 2024, a researcher from QuSAC, Marzio Mula, delivered an online talk for the Isogeny Club. His presentation focused on recent developments in his article The Hessian of Elliptic Curves, co-authored with F. Pintore and D. Taufer. Slides and recording of the seminar are available online.

A QuSAC researcher, Marzio Mula, attended the conference Cifris24 held in Rome on September 25-27, 2024. He also presented a recent work by the QuSAC group, together with CODE colleague Sören Kleine, on proving knowledge of isogenies.

A researcher from QuSaC, Thomas den Hollander, participated in the 5-day workshop Foundations and Applications of Zero-Knowledge Proofs in Edinburgh. It was an opportunity to broaden his knowledge of modern zero-knowledge proof systems as well as meet and discuss with other researchers in the area. He also presented the recent QuSaC-paper "A Crack in the Firmament: Restoring Soundness of the Orion Proof System and More".

Two researchers from the QuSAC lab (Marzio Mula and Sebastian Spindler) attended the 5th installment of the Isogeny Days in Leuven (Belgium) from 11 to 13 September 2024. The main themes discussed in the talks and in the brainstorming sessions revolve around the use of higher-dimensional abelian varieties, generalized pairings, and quaternion algebras for both constructive and destructive purposes in isogeny-based protocols.

We warmly congratulate Marzio Mula on the successful defence of his PhD thesis "Graphs and pairings of elliptic curves" at the University of Trento! The QuSAC Lab is now thrilled to welcome Marzio as our first PostDoc! A warm welcome, all the best and much success in our team!

The QuSAC Lab is thrilled to welcome Sebastian Spindler and Thomas den Hollander as new PhD students. A warm welcome, all the best and much success in our team!

Prof. Dr. Daniel Slamanig was honored with a Top Reviewer Award at the 30th ACM SIGSAC Conference on Computer and Communications Security (CCS 2023), which is taking place from November 26th to 30th in Copenhagen, Denmark. The ACM Conference on Computer and Communications Security (CCS) is the flagship annual conference of the Special Interest Group on Security, Audit and Control (SIGSAC) of the Association for Computing Machinery (ACM) and is one of the top four academic security conferences worldwide.

Prof. Dr. Daniel Slamanig joined the Research Institute CODE and the Department of Computer Science at the Universität der Bundeswehr München on November 1 2023 as Full Professor of Cryptology. At RI CODE he established the Quantum Safe & Advanced Cryptography (QuSAC) Lab. Upon his appointment Prof. Slamanig gave an interview (in German) where he talks about his research and future plans.