World's Best Scientists 2026 revealed!

D-Index & Metrics

Computer Science

D-Index
40
Citations
9730
World Ranking
9124
National Ranking
563

Overview

Nicolas T. Courtois is affiliated with University College London in the United Kingdom. Their research primarily falls within the field of Computer Science, with focused contributions to several subfields including Artificial Intelligence, Computer Vision and Pattern Recognition, Information Systems, Organizational Behavior and Human Resource Management, and Social Psychology.

The scientist has contributed to a range of topics spanning cryptographic implementations and security, chaos-based image and signal encryption, coding theory and cryptography, job satisfaction and organizational behavior, workaholism, burnout and well-being, as well as workplace spirituality and leadership. These diverse topics reflect an intersection of technical and social research interests.

Notable recent publications include:

  • Influence du leadership habilitant sur le bien-être au travail et l'engagement organisationnel: étude comparative entre une organisation " habilitante " et une organisation " classique ", 2020, Psychologie du Travail et des Organisations
  • Crypto Currency Regulation and Law Enforcement Perspectives, 2021, arXiv (Cornell University)
  • A nonlinear invariant attack on T-310 with the original Boolean function, 2020, Cryptologia
  • Construction of a polynomial invariant annihilation attack of degree 7 for T-310, 2020, Cryptologia
  • Invariant Hopping Attacks on Block Ciphers, 2020, arXiv (Cornell University)

Frequent publication venues for their research include Cryptologia, arXiv (Cornell University), Psychologie du Travail et des Organisations, and Rad Hrvatske akademije znanosti i umjetnosti Matematičke znanosti.

Common collaborators in their research endeavors are Marek Grajek, Matteo Abbondati, A. Caillé, Jean-Michel Galharret, and Christine Jeoffrion.

Best Publications

  • Algebraic attacks on stream ciphers with linear feedback

    Nicolas T. Courtois;Willi Meier

  • Cryptanalysis of Block Ciphers with Overdefined Systems of Equations.

    Nicolas T. Courtois;Josef Pieprzyk

  • Efficient algorithms for solving overdefined systems of multivariate polynomial equations

    Nicolas Courtois;Alexander Klimov;Jacques Patarin;Adi Shamir

  • How to achieve a McEliece-based Digital Signature Scheme.

    Nicolas T. Courtois;Matthieu Finiasz;Nicolas Sendrier

  • Higher order correlation attacks, XL algorithm and cryptanalysis of Toyocrypt

    Nicolas T. Courtois

  • Cryptanalysis of the TTM Cryptosystem

    Louis Goubin;Nicolas Courtois

  • On Subversive Miner Strategies and Block Withholding Attack in Bitcoin Digital Currency

    Nicolas T. Courtois;Lear Bahack

  • QUARTZ, 128-Bit Long Digital Signatures

    Jacques Patarin;Nicolas Courtois;Louis Goubin

  • Algebraic cryptanalysis of the data encryption standard

    Nicolas T. Courtois;Gregory V. Bard

  • The Security of Hidden Field Equations (HFE)

    Nicolas Courtois

  • Sosemanuk, a Fast Software-Oriented Stream Cipher

    Côme Berbain;Olivier Billet;Anne Canteaut;Nicolas Courtois

  • C*-+ and HM: Variations Around Two Schemes of T. Matsumoto and H. Imai

    Jacques Patarin;Louis Goubin;Nicolas Courtois

  • Algebraic and Slide Attacks on KeeLoq

    Nicolas T. Courtois;Gregory V. Bard;David Wagner

  • FLASH, a Fast Multivariate Signature Algorithm

    Jacques Patarin;Nicolas Courtois;Louis Goubin

  • Efficient Methods for Conversion and Solution of Sparse Systems of Low-Degree Multivariate Polynomials over GF(2) via SAT-Solvers.

    Gregory V. Bard;Nicolas T. Courtois;Chris Jefferson

  • Algebraic attacks on combiners with memory and several outputs

    Nicolas T. Courtois

  • About the XL algorithm over GF(2)

    Nicolas T. Courtois;Jacques Patarin

  • Improved algorithms for isomorphisms of polynomials

    Jacques Patarin;Louis Goubin;Nicolas T. Courtois

  • Higher order correlation attacks, XL algorithm and cryptanalysis of Toyocrypt

    Nicolas T. Courtois

  • Efficient Zero-knowledge Authentication Based on a Linear Algebra Problem MinRank.

    Nicolas T. Courtois

  • Solving Underdefined Systems of Multivariate Quadratic Equations

    Nicolas Courtois;Louis Goubin;Willi Meier;Jean-Daniel Tacier

Frequent Co-Authors

Anne Canteaut
Anne Canteaut French Institute for Research in Computer Science and Automation - INRIA
Josef Pieprzyk
Josef Pieprzyk Commonwealth Scientific and Industrial Research Organisation
Jean-Jacques Quisquater
Jean-Jacques Quisquater Université Catholique de Louvain
David Wagner
David Wagner University of California, Berkeley
Willi Meier
Willi Meier University of Applied Sciences and Arts Northwestern Switzerland
Serge Vaudenay
Serge Vaudenay École Polytechnique Fédérale de Lausanne
Adi Shamir
Adi Shamir Weizmann Institute of Science
Bo-Yin Yang
Bo-Yin Yang Academia Sinica
M. Angela Sasse
M. Angela Sasse University College London

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