[Photo]

Luk Bettale

Address:
IDEMIA
2 place Samuel de Champlain
92400 Courbevoie - France

I am R&D Senior Engineer at IDEMIA.

I defended my PhD on October 3rd, 2011 in the team project SALSA, now renamed PolSys (LIP6/ INRIA) in the Scientific Computing department (CALSCI) of the laboratory of computer science of Paris 6 (LIP6).
My advisors were Jean-Charles Faugère and Ludovic Perret.

Resume

contact:

Research

Research Interests: Side-channel analysis and countermeasures as well as efficient implementation of cryptograhic schemes.
Keywords: Side-channel analysis, countermeasures, efficient implementation, algebraic cryptanalysis, applied cryptography, computer algebra.

PhD subject: Algebraic cryptanalysis: tools and applications.
I worked on modeling cryptographic schemes with algebraic systems to solve them with efficient tools like Gröbner bases.


Publications

PhD thesis

Publications

[1] Luk Bettale, Jean-Sébastien Coron, and Rina Zeitoun. Improved high-order conversion from boolean to arithmetic masking. IACR Trans. Cryptogr. Hardw. Embed. Syst., 2018(2):22--45, 2018. [ bib ]
[2] Luk Bettale, Emmanuelle Dottax, and Mailody Ramphort. Algebraic side-channel attacks on masked implementations of AES. In ICETE (2), pages 424--435. SciTePress, 2018. [ bib ]
[3] Luk Bettale, Emmanuelle Dottax, Laurie Genelle, and Gilles Piret. Collision-correlation attack against a first-order masking scheme for MAC based on SHA-3. In COSADE, volume 8622 of Lecture Notes in Computer Science, pages 129--143. Springer, 2014. [ bib ]
[4] Sonia Belaïd, Luk Bettale, Emmanuelle Dottax, Laurie Genelle, and Franck Rondepierre. Differential power analysis of HMAC SHA-1 and HMAC SHA-2 in the hamming weight model. In ICETE (Selected Papers), volume 554 of Communications in Computer and Information Science, pages 363--379. Springer, 2014. [ bib ]
[5] Luk Bettale, Jean-Charles Faugère, and Ludovic Perret. Cryptanalysis of hfe, multi-hfe and variants for odd and even characteristic. Des. Codes Cryptography, 69(1):1--52, 2013. [ bib ]
[6] Sonia Belaïd, Luk Bettale, Emmanuelle Dottax, Laurie Genelle, and Franck Rondepierre. Differential power analysis of HMAC SHA-2 in the hamming weight model. In SECRYPT, pages 230--241. SciTePress, 2013. [ bib ]
[7] Luk Bettale. Secure multiple sboxes implementation with arithmetically masked input. In CARDIS, volume 7771 of Lecture Notes in Computer Science, pages 91--105. Springer, 2012. [ bib ]
[8] Luk Bettale, Jean-Charles Faugère, and Ludovic Perret. Solving polynomial systems over finite fields: improved analysis of the hybrid approach. In ISSAC, pages 67--74. ACM, 2012. [ bib ]
[9] Luk Bettale, Jean-Charles Faugère, and Ludovic Perret. Cryptanalysis of multivariate and odd-characteristic HFE variants. In Public Key Cryptography, volume 6571 of Lecture Notes in Computer Science, pages 441--458. Springer, 2011. [ bib ]
[10] Luk Bettale, Jean-Charles Faugère, and Ludovic Perret. Hybrid approach for solving multivariate systems over finite fields. J. Mathematical Cryptology, 3(3):177--197, 2009. [ bib ]
[11] Luk Bettale, Jean-Charles Faugère, and Ludovic Perret. Cryptanalysis of the TRMS signature scheme of pkc'05. In AFRICACRYPT, volume 5023 of Lecture Notes in Computer Science, pages 143--155. Springer, 2008. [ bib ]
[12] Luk Bettale, Jean-Charles Faugère, and Ludovic Perret. Security analysis of multivariate polynomials for hashing. In Inscrypt, volume 5487 of Lecture Notes in Computer Science, pages 115--124. Springer, 2008. [ bib ]

Talks

Master's thesis


Teaching

I occasionally give lectures at "Université Pierre et Marie Curie" (Master informatique: spécialité SFPN), Paris 6 (UFR 919) and at "Université de Rouen" (Master SSI).
During my PhD thesis, I was "moniteur" at "Université Pierre et Marie Curie" (UPMC), Paris 6 (UFR 919).

IDEMIA

Univ. Rouen

Paris 6

Paris 6

2010/2011

2009/2010

2008/2009


Software

Miscellaneous