Associate professor (agregat) at Universitat Rovira i Virgili. Computer Engineering and Mathematics Dept.
Coordinator of the PhD programme in Computer Science and Mathematics of Security.
email: oriol.farras [at] urv.cat
Address: Office 137, ETSE, Campus Sescelades, E-43007 Tarragona, Catalonia, Spain.
Research interests: secret sharing schemes, cryptography, information theory, matroid theory, and combinatorics.
Upcoming events:
Periodic seminars: Seminar on Algorithmic Aspects of Information Theory, LIMDA seminars, Barcelona Mathematics and Machine Learning Colloquium Series (b=M2L), Three talks in combinatorics,
News:
Revisiting Beimel-Weinreb Weighted Threshold Secret Sharing Schemes, a joint work with Miquel Guiot, accepted at CSF 2026. Full version at eprint.
Traceable Secret Sharing Schemes for General Access Structures, a joint work with Miquel Guiot, presented at Eurocrypt 2026. Full version at eprint.
Co-organizer of Doctoral Workshop in Computer Science and Mathematics. April 15, Tarragona.
Talk “Divide and Secure: An Introduction to Secret Sharing”. CryptoClub, April 9, U. Carlos III, Madrid.
Talk "Polynomial Secret Sharing Schemes and Algebraic Matroids" at 5 Talks in Combinatorics. March 18, Barcelona.
Information-Theoretic Strong Traceable Secret Sharing Schemes, a joint work with Miquel Guiot, at eprint.
"Quan les matemàtiques garanteixen ciberseguretat", Bojos per les Matemàtiques, February 28.
Attended Winter School on Cryptography and Machine Learning. It was great!
Non-Complete Set Coverings for Higher Order Threshold Implementations, a joint work with Óscar Fidalgo and Carlos Andrés Lara-Niño, accepted at Designs, Codes and Cryptography. Also at eprint.
PQCUARK: A Scalar RISC-V ISA Extension for ML-KEM and ML-DSA. Xavier Carril, Alicia Manuel Pasoot, Emanuele Parisi, Carlos Andrés Lara-Niño, Oriol Farràs, and Miquel Moretó. Accepted at DATE 2026. Also at eprint.
Teaching:
(1st sem.) Cryptography and Information Security (MESIIA).
(2nd sem.) Cryptography and Blockchain Technology (MECMAT), Matemàtica Discreta II (GEI).
Current PhD students:
Óscar Fidalgo (2025-)
Miquel Guiot (2024-)
Adriana Moya (2023-)
Research groups and Projects: CRISES, Discrete and Algorithmic Mathematics Spanish network, Red RISC-V, CYBERCAT, DRAC.
Program Committee (latest): Workshop on Secret Sharing Schemes, EUROCRYPT 2025, CCS 2024, ACNS 2023, Encuentro Ibérico de Matemáticas 2022, Latincrypt 2021, TCC 2020, Itinerant Cryptography Seminars, RECSI, DCSM 2022-26.
Editorial Board: Designs, Codes and Cryptography (2026)