[Overview] [Day 1] [Day 2] [Day 3]
December 14, 2021
All times are CET. To convert to your time zone, click [here].
11:00 – 12:00 Keynote 3
Chair: Marc Stevens
MP-SPDZ: A Versatile Framework for Multi-Party Computation
Marcel Keller
[presentation]
12:00 – 12:15 Break
12:15 – 13:15 Cryptography and Encryption
Chair: Marc Stevens
On the Higher-bit Version of Approximate Inhomogeneous Short Integer Solution Problem
Anaëlle Le Dévéhat, Hiroki Shizuya and Shingo Hasegawa
[presentation]
Linear-time oblivious permutations for SPDZ (short paper)
Peeter Laud
[presentation]
Grain-128AEADv2: Strengthening the Initialization Against Key Reconstruction
Martin Hell, Thomas Johansson, Alexander Maximov, Willi Meier and Hirotaka Yoshida
[presentation]
FO-like Combiners and Hybrid Post-Quantum Cryptography
Loïs Huguenin-Dumittan and Serge Vaudenay
[presentation]
13:15 – 14:00 Break
14:00 – 15:00 Cryptography and Encryption
Chair: Angelo Spognardi
Practical Privacy-Preserving Face Identification based on Function-Hiding Functional Encryption (short paper)
Alberto Ibarrondo, Hervé Chabanne and Melek Önen
[presentation]
Partition Oracles from Weak Key Forgeries
Marcel Armour and Carlos Cid
[presentation]
Practical Continuously Non-Malleable Randomness Encoders in the Random Oracle Model
Antonio Faonio
[presentation]
Efficient Threshold-Optimal ECDSA
Michaella Pettit
[presentation]
15:00 – 15:15 Break
15:15 – 16:15 Signatures and Credential Schemes
Chair: Simone Soderi
BlindOR: An Efficient Lattice-Based Blind Signature Scheme from OR-Proofs
Nabil Alkeilani Alkadri, Patrick Harasser and Christian Janson
[presentation]
Issuer-Hiding Attribute-Based Credentials
Jan Bobolz, Fabian Eidens, Stephan Krenn, Sebastian Ramacher and Kai Samelin
[presentation]
Selectively Linkable Group Signatures – Stronger Security and Preserved Verifiability
Ashley Fraser, Lydia Garms and Anja Lehmann
[presentation]
Report and Trace Ring Signatures
Ashley Fraser and Elizabeth A. Quaglia
[presentation]
16:15 – 16:30 Break
16:30 – 17:00 Signatures and Credential Schemes
Chair: Eleonora Losiouk
GMMT: A Revocable Group Merkle Multi-Tree Signature Scheme
Mahmoud Yehia, Riham Altawy and T. Aaron Gulliver
[presentation]
Function-private Conditional Disclosure of Secrets and Multi-evaluation Threshold Distributed Point Functions
Nolan Miranda, Foo Yee Yeo and Vipin Singh Sehrawat
[presentation]
17:00 – 18:00 Keynote 4
Chair: Eleonora Losiouk
Transitioning the TLS protocol to post-quantum cryptography
Douglas Stebila
[presentation]