October 10, 2018

Milano, Italy
Advances in permutation-based cryptography

Christof Beierle

Christof Beierle works as a research associate in the CryptoLUX research group of the University of Luxembourg. He received his PhD degree from Ruhr University Bochum, Germany, under the supervision of Prof. Gregor Leander in February 2018. His research interests are in the field of symmetric cryptography, especially design and analysis of block ciphers.

Christoph Dobraunig

Christoph Dobraunig is employed as a postdoctoral researcher at the IAIK, Graz University of Technology. So far, he has done research in cryptography (analysis and design of symmetric primitives) and implementation security (side-channel and fault attacks). He is a co-designer of the authenticated encryption scheme Ascon, the authenticated encryption scheme Isap, and the stream cipher Rasta.

Thomas Fuhr

Thomas Fuhr works as a cryptographer at ANSSI (the National Cybersecurity Agency of France). He did his PhD on design, proofs and cryptanalysis of hash functions at ANSSI and Telecom ParisTech (France), under the supervision of Henri Gilbert. His current main research topic is the cryptanalysis of symmetric algorithms.

Silvia Mella

Silvia Mella works as cryptographer at STMicroelectronics, Italy. She received her Ph.D. from the University of Milan under the supervision of Stelvio Cimato, Joan Daemen and Gilles Van Assche. Her research interests are in differential cryptanalysis and side channel and fault attacks.

Ling Song

Ling Song is a researcher at Nanyang Technological University and Institute of Information Engineering, CAS. Her research interests focus on cryptanalysis of symmetric-key algorithms. Her recent work brings about the best collision attacks on Keccak so far with respect to the number of rounds attacked.

Gilles Van Assche

Gilles Van Assche is a cryptographer at STMicroelectronics, Belgium. He received his PhD from the University of Brussels in quantum cryptography, although his current research interest are in classical symmetric cryptography. He is a co-designer of the Noekeon block cipher and the Keccak sponge function (SHA-3).

Benoît Viguier

Benoît Viguier is a PhD student at the Digital Security group and the Department of Software Science of the Radboud University in Nijmegen, working on tools for formally verifying cryptographic software under the supervision of Peter Schwabe, Freek Wiedijk, Joan Daemen and Herman Geuvers. Before that, he was an engineering student at the INSA Rennes (National Institute of Applied Science, France) and master student in Research in Computer Science (MRI).

Damian Vizár

Damian Vizár is a cryptographer and a security engineer at CSEM, Switzerland. After finishing his undergrad at the Slovak University of Technology in Bratislava, he did his PhD at the EPFL, Switzerland under the supervision of Serge Vaudenay. His main research interest is provably secure symmetric cryptography. He co-authored one of the submissions to the CAESAR competition for authenticated encryption, worked on advanced security notions for authenticated encryption and contributed to the research on full-state absorption of the Sponge. Personal website.

David Wong

David Wong is a Security Consultant at the Cryptography Services practice of NCC Group. He has taken part in several publicly funded open source audits such as OpenSSL and Let's Encrypt. He has contributed to standards like TLS 1.3 and the Noise Protocol Framework. Among others, he is the author of the Disco protocol ( and the Decentralized Application Security Project for smart contracts ( His research includes timing attacks on ECDSA and backdoors in Diffie-Hellman. Prior to NCC Group, David graduated from the University of Bordeaux with a Masters in Cryptography.