Academic Profile

Academic Profile

Asst Prof Peyrin Thomas

Nanyang Assistant Professor (NRF)

Division of Mathematical Sciences
School of Physical & Mathematical Sciences
College of Science

Phone: (+65)65132027
Office: SPMS-MAS-05-14

  • PhD Uni de Versailles St-Quentin-en-Yvelines 2008
  • ME CPE Lyon 2004
Thomas PEYRIN received his engineer M.S. in 2004 from CPE Lyon and specialized in theoretical computer science at the Ecole Polytechnique in France. He completed in 2008 a doctorate in cryptography at Orange Labs, formerly known as France Telecom, during which he was awarded the Japan Society for the Promotion of Science (JSPS) grant. He previously worked as a Cryptography Expert at Ingenico (the world leader in payment solutions) and as a Research Fellow at the School of Physical and Mathematical Sciences of Nanyang Technological University in Singapore under the Singapore Lee Kuan Yew Postdoctoral Fellowship. He is now a Nanyang Assistant Professor in NTU under the Singapore NRF fellowship.
Research Interests
His favorite research topic is symmetric-key cryptography, in particular hash functions, block ciphers and cryptanalysis. He also recently got interested in lightweight cryptography, aimed for very constrained environments. Notably, he is one of the designers of LED and PHOTON, currently the smallest known block cipher and hash function. He was involved in the NIST SHA-3 competition as one of the main designers of the candidate ECHO, which has been selected for the second round of the process. He also proposed BPS, a format-preserving encryption scheme, which is currently being standardized by the American National Standards Institute.
Research Grant
  • Defence Science Organisation National Laboratories (2017-) [by DSO National Laboratories]
  • NRF Research Fellowship (2012-)
Current Projects
  • Analysis and Conception of Symmetric Key Cryptography Primitives
  • Attacks on Hash Function SHA-1 and AES
  • Chosen-prefix Colision Attack on SHA-1 with ASICS Cluster
  • Singapore Munich Exchange on Resistant Crypto Systems
Selected Publications
  • C. Beierle, J. Jean, S. Kölbl, G. Leander, A. Moradi, T. Peyrin, Y. Sasaki, P. Sasdrich, S.M. Sim. (2016). CRYPTO 2016: The SKINNY Family of Block Ciphers and its Low-Latency Variant MANTIS. CRYPTO 2016SPRINGER.
  • T. Peyrin and Y. Seurin. (2016). CRYPTO 2016: Counter-in-Tweak: Authenticated Encryption Modes for Tweakable Block Ciphers. CRYPTO 2016Springer.
  • M. Stevens, P. Karpman and T. Peyrin. (2016). EUROCRYPT 2016: Freestart collision on full SHA-1. EUROCRYPT 2016.
  • P. Karpman, T. Peyrin, and M. Stevens. (2015). CRYPTO 2015: Practical Free-Start Collision Attacks on 76-Step SHA-1. CRYPTO 2015.
  • F.Landelle and T. Peyrin. (2015). Cryptanalysis of Full RIPEMD-128. Journal of Cryptology, .

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