Conference Program

Note: All timedates are displayed in local time Hammamet, Tunisia, GMT+1.

8:00 – 9:00

Registration
Conference venue

9:00 – 9:30

Opening Ceremony
Launch of the Africacrypt 2026 Conference

Keynote talk 1

09:30 – 10:30

Keynote speaker: María Naya-Plasencia
Chair: Francisco Rodriguez Henriquez

10:30 – 11:00

Coffee Break + Poster Session

Session 1: Symmetric Cryptography and Implementation Security

Chair: María Naya-Plasencia

11:00 – 11:25

Ciphertext-Only Attack on HALFLOOP-24
Marcus Dansarie, Gregor Leander, Shahram Rasoolzadeh, Lukas Stennes and Cihangir Tezcan

11:25 – 11:50

Can We Tolerate Small Side-Channel Leakages: The Role of Registers in Glitch-Stopping Circuits
Artemii Ovchinnikov, Jelle Biesmans, Kris Myny, Ventzislav Nikov and Svetla Nikova

11:50 – 12:15

MATSE: Amortized Threshold Symmetric-key Encryption for Matrices
Rittwik Hajra, Subha Kar and Pratyay Mukherjee

12:15 – 14:30

Lunch Break

Session 2: ECC, Pairings, and RSA

Chair: Sylvain Duquesne

14:30 – 14:55

On the Complexity Reduction of Final Exponentiation
Siradji Sadikou Gaya, Senegue Gomez Nyamsi, Emmanuel Fouotsa and Morou Amidou

14:55 – 15:20

Batch Subgroup Membership Testing on Pairing-Friendly Curves
Dimitri Koshelev, Youssef El Housni and Georgios Fotiadis

15:20 – 15:45

A New Attack on an RSA Variant with Primes Sharing Most Significant Bits
Brahim Chnioune, Mohammed Rahmani, Abderrahmane Nitaj and Mhammed Ziane

15:45 – 16:15

Coffee Break + Poster Session

Session 3: Advanced Signatures

Chair: Francisco Rodriguez Henriquez

16:15 – 16:40

On the Properties of HighBits and LowBits Functions and Their Applications
Alice Pellet-Mary and Michel Seck

16:40 – 17:05

Aggregate Signature Using Lattice
Meenakshi Kansal

17:05 – 17:30

Dual-Type Quotable Signatures with Adaptive Unforgeability and Complete Context-Hiding
Masahito Ishizaka and Kazuhide Fukushima

8:00 – 8:30

Registration
Conference venue

Keynote talk 2

08:30 – 9:30

Keynote speaker: Elena Kirshanova
Chair: Nadia El Mrabet

Session 4: Lattice-Based and Post-Quantum Cryptography

Chair: Elena Kirshanova

09:40 – 10:05

Lightweight and Post-Quantum Authenticated Key Exchange
Alex Aïdan, Sébastien Canard, Emmanuel Fouotsa and Melchisedech Mbeng

10:05 – 10:30

New Post-Quantum IBE leveraging maturity, efficiency and security of standard schemes
Julien Cam

10:30 – 10:55

First-order Masked Fine-Shuffling Implementation Against Side-Channel Attacks with Application to ML-KEM
Souhayl Ben El Haj Soulami, Sylvain Duquesne, Guillaume Fumaroli and Noura Ait Manssour

11:00 – 11:30

Coffee break and Poster Session

Session 5: Quantum and Post-Quantum Attacks/Protocols

Chair: Pascal Lafourcade

11:30 – 11:55

The Best of Both Worlds: Hybrid Authenticated Key Exchange for QKD(N) without Signatures
Sebastian Clermont and Johanna Henrich

11:55 – 12:20

Quantum Polynomial-Time Key-Recovery Attacks on Generalized TWINE and LBlock
Hongyu Lu, Qingyuan Yu, Boyun Li and Qun Liu

12:20 – 13:30

Lunch Break

13:45 – ...

Excursion and Gala Dinner

9:00 – 9:30

Registration
Conference venue

Keynote talk 3

09:30 – 10:30

Keynote speaker: Peter Schwabe
Chair: Loubna Ghammam

10:30 – 11:00

Coffee Break + Poster Session

Session 6: Cryptographic Models and Applications

Chair: Peter Schwabe

11:00 – 11:25

Post-quantum Secure Non-Committing Registered Functional Encryption
Ramprasad Sarkar

11:25 – 11:50

Deterministic Random-Walk Leader Election for Blockchains
Durgesh Pandey and Kannan Srinathan

11:50 – 12:15

Security Modeling of Platform-Agnostic Electronic Know Your Customer (e-KYC) System
Yassir Yahaya

12:15 – 14:00

Lunch Break

Session 7: Fully Homomorphic Encryption

14:00 – 14:25

Threshold (T)FHE without smudging by means of correct threshold additive HE
Antonina Bondarchuk, Renaud Sirdey, Aymen Boudguiga and Olive Chakraborty

14:25 – 14:50

Minimizing noise growth for TFHE bootstrapping
Anas Boudi and Louis Goubin

15:00 – 15:30

Concluding Remarks