Cyprien Delpech de Saint Guilhem

According to our database, Cyprien Delpech de Saint Guilhem authored at least 24 papers between 2017 and 2025.

Collaborative distances:

• Dijkstra number of three.
• Erdős number of three.

2025

Shorter, Tighter, FAESTer: Optimizations and Improved (QROM) Analysis for VOLE-in-the-Head Signatures.

Carsten Baum, Ward Beullens, Lennart Braun, Cyprien Delpech de Saint Guilhem, Michael Klooß, Christian Majenz, Shibam Mukherjee, Emmanuela Orsini, Sebastian Ramacher, Christian Rechberger, Lawrence Roy, Peter Scholl

Proceedings of the Advances in Cryptology - CRYPTO 2025, 2025

Faster VOLEitH Signatures from All-But-One Vector Commitment and Half-Tree.

Dung Bui, Kelong Cong, Cyprien Delpech de Saint Guilhem

Proceedings of the Information Security and Privacy - 30th Australasian Conference, 2025

2024

Improved All-but-One Vector Commitment with Applications to Post-Quantum Signatures.

Dung Bui, Kelong Cong, Cyprien Delpech de Saint Guilhem

IACR Cryptol. ePrint Arch., 2024

STARK-based Signatures from the RPO Permutation.

Shahla Atapoor, Cyprien Delpech de Saint Guilhem, Al Kindi

IACR Cryptol. ePrint Arch., 2024

New Proof Systems and an OPRF from CSIDH.

Cyprien Delpech de Saint Guilhem, Robi Pedersen

Proceedings of the Public-Key Cryptography - PKC 2024, 2024

2023

ZK-for-Z2K: MPC-in-the-Head Zero-Knowledge Proofs for ℤ_2^k.

Lennart Braun, Cyprien Delpech de Saint Guilhem, Robin Jadoul, Emmanuela Orsini, Nigel P. Smart, Titouan Tanguy

IACR Cryptol. ePrint Arch., 2023

Zero-Knowledge Systems from MPC-in-the-Head and Oblivious Transfer.

Cyprien Delpech de Saint Guilhem, Ehsan Ebrahimi, Barry Van Leeuwen

Proceedings of the Cryptography and Coding - 19th IMA International Conference, 2023

ZK-for-Z2K: MPC-in-the-Head Zero-Knowledge Proofs for $\mathbb {Z}_{2^k}$.

Lennart Braun, Cyprien Delpech de Saint Guilhem, Robin Jadoul, Emmanuela Orsini, Nigel P. Smart, Titouan Tanguy

Proceedings of the Cryptography and Coding - 19th IMA International Conference, 2023

Publicly Verifiable Zero-Knowledge and Post-Quantum Signatures from VOLE-in-the-Head.

Carsten Baum, Lennart Braun, Cyprien Delpech de Saint Guilhem, Michael Klooß, Emmanuela Orsini, Lawrence Roy, Peter Scholl

Proceedings of the Advances in Cryptology - CRYPTO 2023, 2023

2022

Efficient Proof of RAM Programs from Any Public-Coin Zero-Knowledge System.

Cyprien Delpech de Saint Guilhem, Emmanuela Orsini, Titouan Tanguy, Michiel Verbauwhede

Proceedings of the Security and Cryptography for Networks - 13th International Conference, 2022

2021

On the theory and design of post-quantum authenticated key-exchange, encryption and signatures

Cyprien Delpech de Saint Guilhem

PhD thesis, 2021

Banquet: Short and Fast Signatures from AES.

Carsten Baum, Cyprien Delpech de Saint Guilhem, Daniel Kales, Emmanuela Orsini, Peter Scholl, Greg Zaverucha

Proceedings of the Public-Key Cryptography - PKC 2021, 2021

Compact, Efficient and UC-Secure Isogeny-Based Oblivious Transfer.

Yi-Fu Lai, Steven D. Galbraith, Cyprien Delpech de Saint Guilhem

Proceedings of the Advances in Cryptology - EUROCRYPT 2021, 2021

Compilation of Function Representations for Secure Computing Paradigms.

Karim Baghery, Cyprien Delpech de Saint Guilhem, Emmanuela Orsini, Nigel P. Smart, Titouan Tanguy

Proceedings of the Topics in Cryptology - CT-RSA 2021, 2021

Limbo: Efficient Zero-knowledge MPCitH-based Arguments.

Cyprien Delpech de Saint Guilhem, Emmanuela Orsini, Titouan Tanguy

Proceedings of the CCS '21: 2021 ACM SIGSAC Conference on Computer and Communications Security, Virtual Event, Republic of Korea, November 15, 2021

The Return of Eratosthenes: Secure Generation of RSA Moduli using Distributed Sieving.

Cyprien Delpech de Saint Guilhem, Eleftheria Makri, Dragos Rotaru, Titouan Tanguy

Proceedings of the CCS '21: 2021 ACM SIGSAC Conference on Computer and Communications Security, Virtual Event, Republic of Korea, November 15, 2021

Séta: Supersingular Encryption from Torsion Attacks.

Luca De Feo, Cyprien Delpech de Saint Guilhem, Tako Boris Fouotsa, Péter Kutas, Antonin Leroux, Christophe Petit, Javier Silva, Benjamin Wesolowski

Proceedings of the Advances in Cryptology - ASIACRYPT 2021, 2021

2020

LegRoast: Efficient Post-quantum Signatures from the Legendre PRF.

Ward Beullens, Cyprien Delpech de Saint Guilhem

Proceedings of the Post-Quantum Cryptography - 11th International Conference, 2020

Authentication in Key-Exchange: Definitions, Relations and Composition.

Cyprien Delpech de Saint Guilhem, Marc Fischlin, Bogdan Warinschi

Proceedings of the 33rd IEEE Computer Security Foundations Symposium, 2020

Semi-commutative Masking: A Framework for Isogeny-Based Protocols, with an Application to Fully Secure Two-Round Isogeny-Based OT.

Cyprien Delpech de Saint Guilhem, Emmanuela Orsini, Christophe Petit, Nigel P. Smart

Proceedings of the Cryptology and Network Security - 19th International Conference, 2020

2019

SÉTA: Supersingular Encryption from Torsion Attacks.

Cyprien Delpech de Saint Guilhem, Péter Kutas, Christophe Petit, Javier Silva

IACR Cryptol. ePrint Arch., 2019

BBQ: Using AES in Picnic Signatures.

Cyprien Delpech de Saint Guilhem, Lauren De Meyer, Emmanuela Orsini, Nigel P. Smart

Proceedings of the Selected Areas in Cryptography - SAC 2019, 2019

2018

Secure Oblivious Transfer from Semi-Commutative Masking.

Cyprien Delpech de Saint Guilhem, Emmanuela Orsini, Christophe Petit, Nigel P. Smart

IACR Cryptol. ePrint Arch., 2018

2017

Generic Forward-Secure Key Agreement Without Signatures.

Cyprien de Saint Guilhem, Nigel P. Smart, Bogdan Warinschi

Proceedings of the Information Security - 20th International Conference, 2017