General information
Offer title : Quantum cryptanalysis (M/F) (H/F)
Reference : UMR7252-OLIRUA-002
Number of position : 1
Workplace : LIMOGES
Date of publication : 28 October 2025
Type of Contract : Researcher in FTC
Contract Period : 12 months
Expected date of employment : 5 January 2026
Proportion of work : Full Time
Remuneration : €3041.58 Monthly gross salary
Desired level of education : Doctorate
Experience required : Indifferent
Section(s) CN : 41 - Mathematics and mathematical interactions
Missions
As part of HQI's HybQuant project, the postdoctoral researcher will be responsible for developing cryptanalysis exploiting the capabilities of quantum computers to analyze post-quantum cryptosystems, and more specifically systems based on error-correcting codes. They will be integrated into the CRYPTIS team of the MATHIS research axis, which specializes in this type of cryptosystems.
Activities
- Propose quantum cryptanalysis of post-quantum cryptosystems
- Evaluate the performance of the resulting attacks
- Program prototypes of these attacks in languages such as Qiskit or Myqlm, for example, to test HPI/HQI hybrid attacks on simulators available in Nouvelle-Aquitaine.
Skills
• Post-quantum cryptography
• Quantum computing
• Cryptanalysis
• Collaborative work
Work Context
Founded in 1968, the University of Limoges is a human-sized local university that trains more than 16,000 students and employs over 1,800 permanent staff members. At the heart of Europe, it is a major multidisciplinary higher education hub in an environment highly conducive to scientific development. Open and welcoming, it is a place teeming with interactions, with a diverse student population, efficient support structures, close-knit teams, training programs based on world-class research, and well-identified career opportunities. Its scientific excellence, with cutting-edge laboratories and large-scale partnerships, contributes to inventing the world of tomorrow. The recruitment will take place in the XLIM laboratory, a multidisciplinary joint research unit (UMR - CNRS 7252), in association with the French National Centre for Scientific Research (CNRS). The Institute brings together more than 500 people with expertise covering vast fields of electronics and microwaves, optics and (bio)photonics, mathematics, computer science, and image processing.
The position is located in a sector under the protection of scientific and technical potential (PPST), and therefore requires, in accordance with the regulations, that your arrival is authorized by the competent authority of the MESR.