Thesis in cryptography (M/F): Security of multivariate cryptographic schemes and their implementations

New

Laboratoire de mathématiques de Versailles

VERSAILLES • Yvelines

  • FTC PhD student / Offer for thesis
  • 36 months
  • Doctorate

This offer is available in English version

This offer is open to people with a document recognizing their status as a disabled worker.

Offer at a glance

The Unit

Laboratoire de mathématiques de Versailles

Contract Type

FTC PhD student / Offer for thesis

Working hHours

Full Time

Workplace

78035 VERSAILLES

Contract Duration

36 months

Date of Hire

01/10/2026

Remuneration

2300 € gross monthly

Apply Application Deadline : 29 July 2026 23:59

Job Description

Thesis Subject

As part of international initiatives to standardize cryptographic algorithms designed to withstand quantum computers, numerous new candidates in multivariate cryptography were proposed in June 2023. This thesis aims to investigate the new assumptions underlying these schemes. Given the novelty of these assumptions (spanning a few years, compared to the 25+ years for UOV), the objective is to assess the hardness of some of these new problems by attempting to improve existing attacks and potentially propose new ones.

This encompasses resistance against both classical and quantum adversaries—the latter having received little attention to date in the field of multivariate cryptography.

Furthermore, the security of implementations of these new multivariate schemes will also be addressed, particularly regarding physical attacks (such as side-channel and fault attacks), with the aim of paving the way for their practical deployment in industrial applications.

Your Work Environment

The doctoral student will be integrated into the 'Cryptology and Information Security' team of the LMV laboratory (UMR CNRS 8100). He will be supervised by Louis Goubin (LMV laboratory), with very regular updates on the progress of the research, and the training will be monitored within the framework of the ED STIC, also relying on the individual thesis monitoring committee.

Constraints and risks

The position is located in a relevant sector of the protection of scientific and technical potential (PPST), and therefore requires, in accordance with regulations, that your arrival be authorized by the competent authority of the MESR.

Compensation and benefits

Compensation

2300 € gross monthly

Annual leave and RTT

44 jours

Remote Working practice and compensation

Pratique et indemnisation du TT

Transport

Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€

About the offer

Offer reference UMR8100-LOUGOU-008
CN Section(s) / Research Area Mathematics and mathematical interactions

About the CNRS

The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.

CNRS

The research professions

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Thesis in cryptography (M/F): Security of multivariate cryptographic schemes and their implementations

FTC PhD student / Offer for thesis • 36 months • Doctorate • VERSAILLES

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