Loïc Bidoux

Cryptography

I mainly work on code-based cryptosystems that are designed to provide security against attacks from both classical and quantum computers. I have been involved in several cryptosystems submitted to the NIST's Post-Quantum Cryptography Standardization Project.

N. Aragon, M. Bardet, L. Bidoux, J.J Chi-Dominguez, V. Dyseryn, T. Feneuil, P. Gaborit, R. Neveu, M. Rivain, J.P. Tillich. MIRA. NIST's Post-Quantum Cryptography Standardization Project. [website]
N. Aaraj, S. Bettaieb, L. Bidoux, A. Budroni, V. Dyseryn, A. Esser, P. Gaborit, M. Kulkarni, V. Mateu, M. Palumbi, L. Perin, J.P Tillich. PERK. NIST's Post-Quantum Cryptography Standardization Project. [website]
N. Aragon, M. Bardet, L. Bidoux, J.J Chi-Dominguez, V. Dyseryn, T. Feneuil, P. Gaborit, A. Joux, M. Rivain, J.P. Tillich, A. Vincotte. RYDE. NIST's Post-Quantum Cryptography Standardization Project. [website]
L. Bidoux, P. Gaborit. Compact Post-Quantum Signatures from Proofs of Knowledge leveraging Structure for the PKP, SD and RSD Problems. International Conference on Codes, Cryptology and Information Security (C2SI), 2023. [pdf]
L. Bidoux, P. Gaborit, M. Kulkarni, V. Mateu. Code-based Signatures from New Proofs of Knowledge for the Syndrome Decoding Problem. Designs, Codes and Cryptography, 2023. [pdf]
S. Bettaieb, L. Bidoux, O. Blazy, B. Cottier, D. Pointcheval. Post-Quantum and UC-secure Oblivious Transfer from SPHF with Grey Zone. International Symposium on Foundations and Practice of Security (FPS), 2022. [pdf]
L. Bidoux, P. Gaborit, M. Kulkarni, N. Sendrier. Quasi-Cyclic Stern Proof of Knowledge. IEEE International Symposium on Information Theory (ISIT), 2022. [pdf]
S. Bettaieb, L. Bidoux, O. Blazy, Y. Connan, P. Gaborit. A Gapless Code-Based Hash Proof System based on RQC and its Applications. Designs, Codes and Cryptography, 2022. [pdf]
S. Bettaieb, L. Bidoux, O. Blazy, B. Cottier, D. Pointcheval. Secure Decision Forest Evaluation. 16th International Conference on Availability, Reliability and Security (ARES), 2021. [pdf]
N. Aragon, S. Bettaieb, L. Bidoux, Y. Connan, J. Coulaud, P. Gaborit, A. Kominiarz. The Rank-Based Cryptography Library. International Workshop on Code-Based Cryptography (CBCrypto), 2021. [pdf]
S. Bettaieb, L. Bidoux, O. Blazy, P. Gaborit. Zero-Knowledge Reparation of the Véron and AGS Code-based Identification Schemes. IEEE International Symposium on Information Theory (ISIT), 2021.
G. Wafo-Tapa, S. Bettaieb, L. Bidoux, P. Gaborit, E. Marcatel. A practicable timing attack against HQC and its countermeasure. Advances in Mathematics of Communications, 2020. [pdf]
S. Bettaieb, L. Bidoux, P. Gaborit, E. Marcatel. Preventing timing attacks against RQC using constant time decoding of Gabidulin codes. 10th International Conference on Post-Quantum Cryptography (PQCrypto), 2019. [pdf]
S. Bettaieb, L. Bidoux, Y. Connan, P. Gaborit, A. Hauteville. The Learning with Rank Errors problem and an application to symmetric authentication. IEEE International Symposium on Information Theory (ISIT), 2018. [pdf]
C. Aguilar Melchor, N. Aragon, S. Bettaieb, L. Bidoux, O. Blazy, J. Bos, J.C. Deneuville, P. Gaborit, E. Persichetti, J.M. Robert, P. Véron, G. Zémor. Hamming Quasi-Cyclic (HQC). NIST's Post-Quantum Cryptography Standardization Project. [website]
C. Aguilar Melchor, N. Aragon, P. S. L. M. Barreto, S. Bettaieb, L. Bidoux, O. Blazy, J.C. Deneuville, P. Gaborit, S. Gueron, T. Güneysu, R. Misoczki, E. Persichetti, N. Sendrier, J.P. Tillich, V. Vasseur, G. Zémor BIKE: Bit Flipping Key Encapsulation. NIST's Post-Quantum Cryptography Standardization Project. [website]
C. Aguilar Melchor, N. Aragon, M. Bardet, S. Bettaieb, L. Bidoux, O. Blazy, J.C. Deneuville, P. Gaborit, A. Hauteville, A. Otmani, O. Ruatta, J.P. Tillich, G. Zémor. ROLLO - Rank-Ouroboros, LAKE & LOCKER. NIST's Post-Quantum Cryptography Standardization Project. [website]
C. Aguilar Melchor, N. Aragon, S. Bettaieb, L. Bidoux, O. Blazy, M. Bros, A. Couvreur, J.C. Deneuville, P. Gaborit, A. Hauteville, G. Zémor. Rank Quasi-Cyclic (RQC). NIST's Post-Quantum Cryptography Standardization Project. [website]

Automated Planning and Multi-Criteria Decision Analysis

I studied preference-based planning in the case where preferences are represented using the Multi-Attribute Utility Theory along with a Choquet integral. This led to the creation of ChoPlan, a planner that was deployed in an information system for planning in crisis management context.

L. Bidoux, J.P. Pignon, F. Bénaben. Planning with Preferences using Multi-Attribute Utility Theory along with a Choquet Integral. Engineering Applications of Artificial Intelligence (EAAI), 2019. [pdf]
L. Bidoux, J.P. Pignon, F. Bénaben. On the use of automated planning in crisis management. 14th international conference on Information Systems for Crisis Response and Management (ISCRAM), 2017. [pdf]