Olivier Blazy

According to our database, Olivier Blazy authored at least 74 papers between 2010 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2025

Threshold Reporting Protocol for Traceability in Anonymous Social Networks.

Olivier Blazy, Lola-Baie Mallordy

IACR Cryptol. ePrint Arch., 2025

Quantum-resistant secret handshakes with dynamic joining, leaving, and banishment: GCD revisited.

Olivier Blazy, Emmanuel Conchon, Philippe Gaborit, Philippe Krejci, Cristina Onete

IACR Cryptol. ePrint Arch., 2025

Bivariate Proximity Test-Based Asynchronous Verifiable Secret Sharing.

Daniel Augot, Olivier Blazy, Hugo Delavenne, Lola-Baie Mallordy

Proceedings of the Progress in Cryptology - AFRICACRYPT 2025, 2025

2024

A Public Key Identity-Based Revocation Scheme: - Fully Attribute-Hiding and Function Private.

Olivier Blazy, Sayantan Mukherjee

Proceedings of the Topics in Cryptology - CT-RSA 2024, 2024

Cryptographic Accumulators: New Definitions, Enhanced Security, and Delegatable Proofs.

Anaïs Barthoulot, Olivier Blazy, Sébastien Canard

Proceedings of the Progress in Cryptology - AFRICACRYPT 2024, 2024

2023

Anonymous attribute-based designated verifier signature.

Olivier Blazy, Laura Brouilhet, Emmanuel Conchon, Mathieu Klingler

J. Ambient Intell. Humaniz. Comput., October, 2023

How fast do you heal? A taxonomy for post-compromise security in secure-channel establishment.

Olivier Blazy, Ioana Boureanu, Pascal Lafourcade, Cristina Onete, Léo Robert

Proceedings of the 32nd USENIX Security Symposium, 2023

Dually Computable Cryptographic Accumulators and Their Application to Attribute Based Encryption.

Anaïs Barthoulot, Olivier Blazy, Sébastien Canard

Proceedings of the Cryptology and Network Security - 22nd International Conference, 2023

Efficient Implementation of a Post-Quantum Anonymous Credential Protocol.

Olivier Blazy, Céline Chevalier, Guillaume Renaut, Thomas Ricosset, Éric Sageloli, Hugo Senet

Proceedings of the 18th International Conference on Availability, Reliability and Security, 2023

2022

Ouroboros: An Efficient and Provably Secure KEM Family.

Nicolas Aragon, Olivier Blazy, Jean-Christophe Deneuville, Philippe Gaborit, Gilles Zémor

IEEE Trans. Inf. Theory, 2022

Post-Quantum Oblivious Transfer from Smooth Projective Hash Functions with Grey Zone.

Slim Bettaieb, Loïc Bidoux, Olivier Blazy, Baptiste Cottier, David Pointcheval

CoRR, 2022

MARSHAL: messaging with asynchronous ratchets and signatures for faster HeALing.

Olivier Blazy, Pierre-Alain Fouque, Thibaut Jacques, Pascal Lafourcade, Cristina Onete, Léo Robert

Proceedings of the SAC '22: The 37th ACM/SIGAPP Symposium on Applied Computing, Virtual Event, April 25, 2022

Post-quantum and UC-Secure Oblivious Transfer from SPHF with Grey Zone.

Slim Bettaieb, Loïc Bidoux, Olivier Blazy, Baptiste Cottier, David Pointcheval

Proceedings of the Foundations and Practice of Security - 15th International Symposium, 2022

(Augmented) Broadcast Encryption from Identity Based Encryption with Wildcard.

Anaïs Barthoulot, Olivier Blazy, Sébastien Canard

Proceedings of the Cryptology and Network Security - 21st International Conference, 2022

Identity-Based Encryption in DDH Hard Groups.

Olivier Blazy, Saqib A. Kakvi

Proceedings of the Progress in Cryptology, 2022

2021

Hardware security without secure hardware: How to decrypt with a password and a server.

Olivier Blazy, Laura Brouilhet, Céline Chevalier, Patrick Towa, Ida Tucker, Damien Vergnaud

Theor. Comput. Sci., 2021

Generic Plaintext Equality and Inequality Proofs (Extended Version).

Olivier Blazy, Xavier Bultel, Pascal Lafourcade, Octavio Perez-Kempner

IACR Cryptol. ePrint Arch., 2021

A Gapless Code-Based Hash Proof System based on RQC and its Applications.

Slim Bettaieb, Loïc Bidoux, Olivier Blazy, Yann Connan, Philippe Gaborit

IACR Cryptol. ePrint Arch., 2021

An IoT Attribute-Based Security Framework for Topic-Based Publish/Subscribe Systems.

Olivier Blazy, Emmanuel Conchon, Mathieu Klingler, Damien Sauveron

IEEE Access, 2021

Zero-Knowledge Reparation of the Véron and AGS Code-based Identification Schemes.

Slim Bettaieb, Loïc Bidoux, Olivier Blazy, Philippe Gaborit

Proceedings of the IEEE International Symposium on Information Theory, 2021

Generic Plaintext Equality and Inequality Proofs.

Olivier Blazy, Xavier Bultel, Pascal Lafourcade, Octavio Perez-Kempner

Proceedings of the Financial Cryptography and Data Security, 2021

How to (Legally) Keep Secrets from Mobile Operators.

Ghada Arfaoui, Olivier Blazy, Xavier Bultel, Pierre-Alain Fouque, Thibaut Jacques, Adina Nedelcu, Cristina Onete

Proceedings of the Computer Security - ESORICS 2021, 2021

A Correction to a Code-Based Blind Signature Scheme.

Olivier Blazy, Philippe Gaborit, Dang Truong Mac

Proceedings of the Code-Based Cryptography - 9th International Workshop, 2021

A Rank Metric Code-Based Group Signature Scheme.

Olivier Blazy, Philippe Gaborit, Dang Truong Mac

Proceedings of the Code-Based Cryptography - 9th International Workshop, 2021

An Anonymous Trace-and-Revoke Broadcast Encryption Scheme.

Olivier Blazy, Sayantan Mukherjee, Huyen Nguyen, Duong Hieu Phan, Damien Stehlé

Proceedings of the Information Security and Privacy - 26th Australasian Conference, 2021

Secure Decision Forest Evaluation.

Slim Bettaieb, Loïc Bidoux, Olivier Blazy, Baptiste Cottier, David Pointcheval

Proceedings of the ARES 2021: The 16th International Conference on Availability, 2021

2020

New efficient M2C and M2M mutual authentication protocols for IoT-based healthcare applications.

Fatma Merabet, Amina Cherif, Malika Belkadi, Olivier Blazy, Emmanuel Conchon, Damien Sauveron

Peer-to-Peer Netw. Appl., 2020

Legally keeping secrets from mobile operators: Lawful Interception Key Exchange (LIKE).

Ghada Arfaoui, Olivier Blazy, Xavier Bultel, Pierre-Alain Fouque, Adina Nedelcu, Cristina Onete

IACR Cryptol. ePrint Arch., 2020

Cryptanalysis of a rank-based signature with short public keys.

Nicolas Aragon, Olivier Blazy, Jean-Christophe Deneuville, Philippe Gaborit, Terry Shue Chien Lau, Chik How Tan, Keita Xagawa

Des. Codes Cryptogr., 2020

CCA-Secure ABE Using Tag and Pair Encoding.

Olivier Blazy, Sayantan Mukherjee

Proceedings of the Progress in Cryptology - INDOCRYPT 2020, 2020

Skipping the q in Group Signatures.

Olivier Blazy, Saqib A. Kakvi

Proceedings of the Progress in Cryptology - INDOCRYPT 2020, 2020

Round-optimal Constant-size Blind Signatures.

Olivier Blazy, Laura Brouilhet, Céline Chevalier, Neals Fournaise

Proceedings of the 17th International Joint Conference on e-Business and Telecommunications, 2020

CROOT: Code-based Round-Optimal Oblivious Transfer.

Nicolas Aragon, Olivier Blazy, Neals Fournaise, Philippe Gaborit

Proceedings of the 17th International Joint Conference on e-Business and Telecommunications, 2020

Public-Key Generation with Verifiable Randomness.

Olivier Blazy, Patrick Towa, Damien Vergnaud

Proceedings of the Advances in Cryptology - ASIACRYPT 2020, 2020

2019

SAID: Reshaping Signal into an Identity-Based Asynchronous Messaging Protocol with Authenticated Ratcheting.

Olivier Blazy, Angèle Bossuat, Xavier Bultel, Pierre-Alain Fouque, Cristina Onete, Elena Pagnin

Proceedings of the IEEE European Symposium on Security and Privacy, 2019

Durandal: A Rank Metric Based Signature Scheme.

Nicolas Aragon, Olivier Blazy, Philippe Gaborit, Adrien Hauteville, Gilles Zémor

Proceedings of the Advances in Cryptology - EUROCRYPT 2019, 2019

Downgradable Identity-Based Encryption and Applications.

Olivier Blazy, Paul Germouty, Duong Hieu Phan

Proceedings of the Topics in Cryptology - CT-RSA 2019, 2019

Post-Quantum UC-Secure Oblivious Transfer in the Standard Model with Adaptive Corruptions.

Olivier Blazy, Céline Chevalier, Quoc-Huy Vu

Proceedings of the 14th International Conference on Availability, Reliability and Security, 2019

Anonymous Identity Based Encryption with Traceable Identities.

Olivier Blazy, Laura Brouilhet, Duong Hieu Phan

Proceedings of the 14th International Conference on Availability, Reliability and Security, 2019

2018

Hash Proof Systems over Lattices Revisited.

Fabrice Benhamouda, Olivier Blazy, Léo Ducas, Willy Quach

Proceedings of the Public-Key Cryptography - PKC 2018, 2018

Spreading Alerts Quietly: New Insights from Theory and Practice.

Olivier Blazy, Céline Chevalier

Proceedings of the 13th International Conference on Availability, Reliability and Security, 2018

Non-Interactive Key Exchange from Identity-Based Encryption.

Olivier Blazy, Céline Chevalier

Proceedings of the 13th International Conference on Availability, Reliability and Security, 2018

2017

A code-based blind signature.

Olivier Blazy, Philippe Gaborit, Julien Schrek, Nicolas Sendrier

Proceedings of the 2017 IEEE International Symposium on Information Theory, 2017

Almost Optimal Oblivious Transfer from QA-NIZK.

Olivier Blazy, Céline Chevalier, Paul Germouty

Proceedings of the Applied Cryptography and Network Security, 2017

Efficient ID-based Designated Verifier Signature.

Olivier Blazy, Emmanuel Conchon, Paul Germouty, Amandine Jambert

Proceedings of the 12th International Conference on Availability, Reliability and Security, Reggio Calabria, Italy, August 29, 2017

2016

Efficient Encryption from Random Quasi-Cyclic Codes.

Carlos Aguilar Melchor, Olivier Blazy, Jean-Christophe Deneuville, Philippe Gaborit, Gilles Zémor

IACR Cryptol. ePrint Arch., 2016

Adaptive Oblivious Transfer and Generalizations.

Olivier Blazy, Céline Chevalier, Paul Germouty

IACR Cryptol. ePrint Arch., 2016

A Code-Based Group Signature Scheme.

Quentin Alamélou, Olivier Blazy, Stéphane Cauchie, Philippe Gaborit

IACR Cryptol. ePrint Arch., 2016

A Practical Group Signature Scheme Based on Rank Metric.

Quentin Alamélou, Olivier Blazy, Stéphane Cauchie, Philippe Gaborit

Proceedings of the Arithmetic of Finite Fields - 6th International Workshop, 2016

Two Secure Anonymous Proxy-based Data Storages.

Olivier Blazy, Xavier Bultel, Pascal Lafourcade

Proceedings of the 13th International Joint Conference on e-Business and Telecommunications (ICETE 2016), 2016

Anonymizable Ring Signature Without Pairing.

Olivier Blazy, Xavier Bultel, Pascal Lafourcade

Proceedings of the Foundations and Practice of Security - 9th International Symposium, 2016

Non-Interactive Plaintext (In-)Equality Proofs and Group Signatures with Verifiable Controllable Linkability.

Olivier Blazy, David Derler, Daniel Slamanig, Raphael Spreitzer

Proceedings of the Topics in Cryptology - CT-RSA 2016 - The Cryptographers' Track at the RSA Conference 2016, San Francisco, CA, USA, February 29, 2016

Mitigating Server Breaches in Password-Based Authentication: Secure and Efficient Solutions.

Olivier Blazy, Céline Chevalier, Damien Vergnaud

Proceedings of the Topics in Cryptology - CT-RSA 2016 - The Cryptographers' Track at the RSA Conference 2016, San Francisco, CA, USA, February 29, 2016

Adaptive Oblivious Transfer and Generalization.

Olivier Blazy, Céline Chevalier, Paul Germouty

Proceedings of the Advances in Cryptology - ASIACRYPT 2016, 2016

Structure-Preserving Smooth Projective Hashing.

Olivier Blazy, Céline Chevalier

Proceedings of the Advances in Cryptology - ASIACRYPT 2016, 2016

2015

Group Signatures Without q-Assumptions.

Olivier Blazy, Saqib A. Kakvi

IACR Cryptol. ePrint Arch., 2015

Tightly-Secure Signatures from Chameleon Hash Functions.

Olivier Blazy, Saqib A. Kakvi, Eike Kiltz, Jiaxin Pan

Proceedings of the Public-Key Cryptography - PKC 2015 - 18th IACR International Conference on Practice and Theory in Public-Key Cryptography, Gaithersburg, MD, USA, March 30, 2015

Non-Interactive Zero-Knowledge Proofs of Non-Membership.

Olivier Blazy, Céline Chevalier, Damien Vergnaud

Proceedings of the Topics in Cryptology, 2015

Generic Construction of UC-Secure Oblivious Transfer.

Olivier Blazy, Céline Chevalier

Proceedings of the Applied Cryptography and Network Security, 2015

2014

(Hierarchical) Identity-Based Encryption from Affine Message Authentication.

Olivier Blazy, Eike Kiltz, Jiaxin Pan

Proceedings of the Advances in Cryptology - CRYPTO 2014, 2014

2013

Short blind signatures.

Olivier Blazy, Georg Fuchsbauer, David Pointcheval, Damien Vergnaud

J. Comput. Secur., 2013

New Smooth Projective Hash Functions and One-Round Authenticated Key Exchange.

Fabrice Ben Hamouda, Olivier Blazy, Céline Chevalier, David Pointcheval, Damien Vergnaud

IACR Cryptol. ePrint Arch., 2013

Efficient UC-Secure Authenticated Key-Exchange for Algebraic Languages.

Fabrice Ben Hamouda, Olivier Blazy, Céline Chevalier, David Pointcheval, Damien Vergnaud

Proceedings of the Public-Key Cryptography - PKC 2013 - 16th International Conference on Practice and Theory in Public-Key Cryptography, Nara, Japan, February 26, 2013

New Techniques for SPHFs and Efficient One-Round PAKE Protocols.

Fabrice Benhamouda, Olivier Blazy, Céline Chevalier, David Pointcheval, Damien Vergnaud

Proceedings of the Advances in Cryptology - CRYPTO 2013, 2013

SPHF-Friendly Non-interactive Commitments.

Michel Abdalla, Fabrice Benhamouda, Olivier Blazy, Céline Chevalier, David Pointcheval

Proceedings of the Advances in Cryptology - ASIACRYPT 2013, 2013

Analysis and Improvement of Lindell's UC-Secure Commitment Schemes.

Olivier Blazy, Céline Chevalier, David Pointcheval, Damien Vergnaud

Proceedings of the Applied Cryptography and Network Security, 2013

2012

Preuves de connaissances interactives et non-interactives. ((Non-)Interactive Proofs of Knowledge).

Olivier Blazy

PhD thesis, 2012

Efficient UC-Secure Authenticated Key-Exchange for Algebraic Languages.

Olivier Blazy, Céline Chevalier, David Pointcheval, Damien Vergnaud

IACR Cryptol. ePrint Arch., 2012

Round-Optimal Privacy-Preserving Protocols with Smooth Projective Hash Functions.

Olivier Blazy, David Pointcheval, Damien Vergnaud

Proceedings of the Theory of Cryptography - 9th Theory of Cryptography Conference, 2012

Compact Round-Optimal Partially-Blind Signatures.

Olivier Blazy, David Pointcheval, Damien Vergnaud

Proceedings of the Security and Cryptography for Networks - 8th International Conference, 2012

Traceable Signature with Stepping Capabilities.

Olivier Blazy, David Pointcheval

Proceedings of the Cryptography and Security: From Theory to Applications, 2012

2011

Signatures on Randomizable Ciphertexts.

Olivier Blazy, Georg Fuchsbauer, David Pointcheval, Damien Vergnaud

Proceedings of the Public Key Cryptography - PKC 2011, 2011

Achieving Optimal Anonymity in Transferable E-Cash with a Judge.

Olivier Blazy, Sébastien Canard, Georg Fuchsbauer, Aline Gouget, Hervé Sibert, Jacques Traoré

Proceedings of the Progress in Cryptology - AFRICACRYPT 2011, 2011

2010

Batch Groth-Sahai.

Olivier Blazy, Georg Fuchsbauer, Malika Izabachène, Amandine Jambert, Hervé Sibert, Damien Vergnaud

Proceedings of the Applied Cryptography and Network Security, 8th International Conference, 2010