WAIFI 2026 Preliminary Program.

Wednesday, 3 June

9:00 - 9:30   Opening

Invited Talk 1   (Chair: Domingo Gómez Pérez)

9:30 - 10:30   Delaram Kahrobaei.
Recent Trends and Future Directions in Post-Quantum Group-based Cryptography in the AI Era. [ABSTRACT]

Session 1   (Chair: Domingo Gómez Pérez)

10:30 - 10:55   Claude Carlet.
A notion on S-boxes for a partial resistance to some integral attacks.

10:55 - 11:20   Noemí DeCastro-García, Lucía Mallo-Fernández and Miguel V. Carriegos.
Output feedback transformations for preserving observability and structural decodability in convolutional codes.

11:20 - 11:50   Break

Session 2

11:50 - 12:15   Virginio Fratianni and Sihem Mesnager.
Self-Orthogonal Codes from p-ary Quadratic Forms via Character Sums with Applications to Pure LCD and Arbitrary Hull Dimensional Codes.

12:15 - 12:40   Satoru Fukasawa.
Algebraic geometry codes with many automorphisms arising from Galois points.

12:40 - 13:05   Beatriz García García, Consuelo Martínez López and Ignacio F. Rúa.
The Non-Asymptotic Landscape of Abelian Codes: A Framework for (F,G)-Goodness.

13:05 - 14:30   Lunch

Invited Talk 2   (Chair: Lejla Batina)

14:30 - 15:30   Violetta Weger.

Session 3   (Chair: Lejla Batina)

15:30 - 16:00   Break

16:00 - 16:25   Marc Joye.
Boolean Arithmetic over F2 from Group Commutators.

16:25 - 16:50   Christian Kaspers and Alexander Pott.
A new construction of locally-APN functions on F22m using spreads and Sidon sets.

16:50 - 17:15   Seon Jeong Kim and Masaaki Homma.
Classification of Hermitian-relative curves up to projective equivalence.

Thursday, 4 June

Invited Talk 3   (Chair: Ferruh Özbudak)

9:30 - 10:30   John Sheekey.
Arithmetic of Finite Semifields. [ABSTRACT]

Session 4   (Chair: Ferruh Özbudak)

10:30 - 10:55   Vincent Macri, Michael Jacobson and Renate Scheidler.
Improvements to Jacobian Arithmetic in Global Function Fields.

10:55 - 11:20   Nicolas Méloni, François Palma and Pascal Véron.
Equality Tests in the Polynomial Modular Number System.

11:20 - 11:50   Break

Session 5

11:50 - 12:15   Ryo Negishi, Kazuki Komine, Akira Katayama and Masaya Yasuda.
On the (Non-)Existence of Efficient Class Group Orbits for Collision Search in CSIDH.

12:15 - 12:40   Francisco Javier Soto Sánchez.
Codegrees and an Exact Triangle Formula for the Norm-One Cayley Graph over Fq3 in Characteristic 2.

12:40 - 13:05   Hugo Rodrigues Teixeira, Claude Gravel and Daniel Panario.
Constructing a parameterized polynomial map through functional graphs and applications.

13:05 - 14:30   Lunch

Session 6

14:30 - 14:55   Kohtaro Yamaguchi and Shushi Harashita.
Automorphism groups of hyperelliptic curves of 2-rank zero.

14:55 - 15:20   Michiya Iwata, Ryomei Sugai, Kosuke Sakata and Tsuyoshi Takagi.
Explicit Bounds on the Existence Probability of Random Multivariate Quadratic Systems over Finite Fields.

15:20 - 16:15   Break + Poster Session

16:15 - 17:30   Short Talks Session

Friday, 5 June

Session 7

9:30 - 9:55   Miguel Alcocer-Pérez, Nathalie Bochard, Viktor Fischer, Ana Isabel Gómez and Domingo Gómez-Pérez.
Period Counting versus Direct Sampling in Oscillator-based TRNGs: Architectures and Characteristics.

9:55 - 10:20   Daichi Aoki and Tsuyoshi Takagi.
Designing PMNS for 8-bit Architectures.

10:20 - 10:45   Doaa Ashmawy and Arash Reyhani-Masoleh.
From Compact to Fast: Exploring 32- and 64-Bit AES Datapaths for IoT Systems.

10:45 - 11:10   Erkay Savaş, Ali Sah Ozcan and Cihangir Tezcan.
Fast and Energy-Efficient Polynomial Multiplication using FFT, FFNT, and NTT on GPUs for Fully Homomorphic Encryption.

11:10 - 11:30   Break

Session 8

11:30 - 11:55   Olav Geil.
On secret sharing from extended norm-trace curves.

11:55 - 12:20   Martin Grenouilloux, Chunlei Li and Pierrick Méaux.
On the Resilience Order of Weightwise Almost Perfectly Balanced Functions.

12:20 - 12:30   Closing Remarks