A Look Back at PQ-Crypto 2026: The PEPR Quantique PQ-TLS Project at the Heart of the Event

An organization led by the members of PQ-TLS

The conference was co-organized by Yixin Shen, a researcher at Inria Rennes and holder of an Early-Stage Researcher Chair within the PQ-TLS project, and Pierre-Alain Fouque, the project’s scientific coordinator. Magali Bardet, associate professor at the University of Rouen at the LITIS laboratory, co-chair of the conference, and member of the PQ-TLS project, also played a key role in its organization. Their commitment made it possible to offer an ambitious program, reflecting the excellence of the PEPR Quantum and the PEPR Cybersecurity.

A comprehensive scientific program

PQ-Crypto 2026 provided a comprehensive overview of innovations in post-quantum cryptography, featuring notable presentations by members of the PQ-TLS project:

• Vladimir Sarde, a PhD student on the PQ-TLS project (joint thesis between UVSQ and IDEMIA), presented his progress on secure obfuscation techniques for multiplication.

• André Schrottenloher, a researcher at the Inria Center at the University of Rennes, presented his work on optimizing quantum circuits for factorization and discrete logarithms.

• André Chailloux, a researcher at Inria Paris, shared his research on quantum algorithms for decoding problems, inspired by Regev’s work.

Thematic sessions led by experts

Two sessions were led by members of PQ-TLS:

• Ben Smith (co-leader of WP1 and Inria research director at LIX) led the session on cryptosystems based on isogenies and group actions.

• Adeline Roux-Langlois (WP1 Lead and CNRS Research Director at GREYC) led the session on network-based cryptography.

Bringing people together

Finally, PQ-Crypto 2026 reaffirmed its role as a platform for exchange among researchers, industry representatives, and policymakers.