SCN Program

Sunday September 13

19:00 – 20:30 Registration & Welcome Cocktail @ Hotel La Bussola

Monday September 14

08:50 – 09:00 Opening Remarks

9:00 – 10:00 Invited Talk
Chair: Pino Persiano
Speaker: Willy Quach
Title: The Power and Limits of Indistinguishability Obfuscation

10:00 – 10:30 Coffee Break

10:30-12:35 Signature Schemes
Chair: Anasuya Acharya

  • Signatures with Post-Compromise Accountability
    Dennis Dayanikli, Johannes Lang and Anja Lehmann
  • Bittersweet Signatures: Bringing LWR to a Picnic for Hardware-Friendly MPC-in-the-Head
    Brieuc Balon, Gianluca Brian, Sebastian Faust, Carmit Hazay, Elena Micheli and François-Xavier Standaert
  • Updatable Signatures from Perfectly Adaptive Signatures with Rerandomizable Keys: a Generic Framework and Post-Quantum Realization
    Surbhi Shaw, Pratima Jana and C. Pandu Rangan
  • Practical Adaptor Signatures: Security and Applications
    Pavel Hubáček, Kristýna Mašková and Berenika Richterová
  • Post-Quantum Anonymous Signatures from the Lattice Isomorphism Group Action
    Chris van Noorden and Paola de Perthuis

12:35 – 15:00 Lunch Break

15:00 – 16:15 Secure Computation I
Chair: Lennart Braun

  • Topology-Hiding Computation From Key Agreement in Diameter-Two Graphs
    D’Or Banoun, Elette Boyle and Ran Cohen
  • Compressed Post-Quantum Silent OT from Isogenies
    Pouria Fallahpour, Arthur Herlédan Le Merdy and Mahshid Riahinia
  • The Quantum Decoherence Model: Everlasting Composable Secure Computation and More
    Nico Döttling, Alexander Koch, Sven Maier, Jermias Mechler, Anne Müller, Joern Mueller-Quade and Kevin Marcel Tiepelt

16:15 – 16:45 Coffee Break

16:45 – 18:25 Proof Systems
Chair: Willy Quach

  • Circuit-Succinct Algebraic Batch Arguments from Projective Functional Commitments
    David Balbás, Dario Fiore and Russell W. F. Lai
  • On the Power of Polynomial Preprocessing: Proving Computations in Sublinear Time, and More
    Matteo Campanelli, Mario Carrillo, Ignacio Cascudo, Dario Fiore, Danilo Francati and Rosario Gennaro
  • Proof-Carrying Data via Holography Accumulation
    Nikitas Paslis, Carla Ràfols and Alexandros Zacharakis
  • Revisiting Simulation Extractability in the Updatable Setting
    Hamidreza Khoshakhlagh

Tuesday September 15

09:00 – 10:00 Invited Talk
Chair: Luisa Siniscalchi
Speaker: Dakshita Khurana
Title: Quantum-Native Assumptions in Cryptography

10:00 – 10:30 Coffee Break

10:30-12:35 Encryption Schemes
Chair: Hamidreza Khoshakhlagh

  • Ciphertext-Updatable Attribute-Based and Predicate Encryption from Lattices
    Robert Schädlich, Linda Scheu-Hachtel, Erkan Tairi and Yuejun Wang
  • (Fine-Grained) Unbounded Inner-Product Functional Encryption from LWE
    Valerio Cini and Erkan Tairi
    Traitor Tracing in Multi-sender Setting (TMCFE: Traceable Multi-client Functional Encryption)
    Xuan Thanh Do, Dang Truong Mac, Ky Nguyen, Duong Hieu Phan and Quoc-Huy Vu
  • On the Costs of Multi-Server Volume-Hiding
    Amine Bahi, Marilyn George, Seny Kamara and Tarik Moataz
  • SCORE: A SlotToCoeff Optimization for Real-Vector Encryption in CKKS
    Tim Seuré

12:35 – 15:00 Lunch Break

15:00 – 16:15 Secure Computation II
Chair: Divya Ravi

  • Malicious Security for Sparse Private Histograms
    Lennart Braun, Adria Gascon, Mariana Raykova, Phillipp Schoppmann and Karn Seth
  • Tail-Hammer: Optimized Statistics for Anonymous Committees and Applications
    Bernardo David, Lucia Lavagnino, Elena Pagnin and Paul Stankovski Wagner
  • Packed Pre-Constructed PVSS for Randomness Generation and E-Voting
    Karim Baghery, Eleftheria Makri and Dheeraj Suryakari

16:15 – 16:45 Coffee Break

16:45 – 17:35 Distributed ledger technologies
Chair: Bernardo David

  • Atlantis: Lattice-based Anonymous Tokens with Private Metadata Bit
    Foteini Baldimtsi and Aayush Yadav
  • Adaptively Secure Fast Settlement with Dynamic Participation and Self-Healing
    Christian Badertscher, Sandro Coretti, Peter Gaži, Aggelos Kiayias and Alexander Russell

18:00 – 20:00 Excursion

20:00 Social Dinner

Wednesday September 16

09:00 – 10:15 Key Management I
Chair: Barbara Masucci

  • Binding Security of Combined KEMs: An Analysis of Real-World KEM Combiners
    Juliane Krämer, Patrick Struck and Maximiliane Weishäupl
  • Multi-Instance Security Degradation of Code-Based KEMs
    Alexander May and Gabriel Sá Diogo
  • The Key Control Security of KDF Combiners
    Ritam Bhaumik

10:15 – 10:45 Coffee Break

10:45 – 12:25 Garbled Circuits and Zero Knowledge
Chair: Eleftheria Makri

  • The Landscape of Reusable Garbling
    Anasuya Acharya, Carmit Hazay and Rahul Satish
  • Oblivious Garbling and its Applications
    Tomer Ashur, Carmit Hazay and Rahul Satish
  • A Note on Zero-Knowledge for $\NP$ and One-Way Functions
    Yanyi Liu, Noam Mazor and Rafael Pass
  • ZK-JPEG: Zero-knowledge Image Editing and Compression
    Samuel Dittmer, Steve Lu, Kimberlee Model and Joseph Near

12:25 – 15:00 Lunch Break

15:00 – 15:50 Key Management II
Chair: Gianluca Brian

  • X3DH with Deniable Authentication without Trusted Third Parties
    Stanislaw Jarecki, Phillip Nazarian and Apurva Rai
  • Key Transport over Untrusted QKD Relay Networks
    Sebastian Clermont, Antoine Gansel and Patrick Struck

15:50 – 16:20 Coffee Break

16:20 – 17:10 Post-Quantum and Dynamic Security
Chair: Luisa Siniscalchi

  • Post-quantum Security of Tweakable Key-Alternating Feistel Ciphers in the Multi-key Setting
    Rentaro Shiba and Tetsu Iwata
  • Dynamic Security: A Realistic Approach to Adaptive Security With Applications to Strong FaF Security
    Bar Alon and Naty Peter

17:35 Closing Remarks & Farewell

Thursday September 17

Workshop “Secrets Shared, Privacy Preserved”