Matthias J.
Kannwischer

PhD Student

Info

Since July 2018 I'm a PhD student of Peter Schwabe in the Digital Security group at Radboud University in Nijmegen. My current research focus is real-world post-quantum cryptography covering implementation and implementation attacks.
Previously, I was working with Liqun Chen at the University of Surrey.
Before that, I completed my MSc in IT Security at TU Darmstadt. My Master Thesis about implementation attack vulnerabilities of hash-based signatures was supervised by Juliane Krämer and Denis Butin.

Research Interests

• Lattice and hash-based cryptography
• Efficient implementation
• Side-channel and fault attacks

Publications

• Kangacrypt'18 Practical Fault Injection Attacks on SPHINCS, Aymeric Genêt, Matthias J. Kannwischer, Hervé Pelletier, and Andrew McLauchlan, Kangacrypt 2018 [paper|preprint20180710|slides|bibtex]
• COSADE'18 Differential Power Analysis of XMSS and SPHINCS, Matthias J. Kannwischer, Aymeric Genêt, Denis Butin, Juliane Krämer, and Johannes Buchmann, COSADE 2018: 168-188 [paper|slides|bibtex]

Preprints

• Oct 2018 Faster multiplication in ℤ_2^m[x] on Cortex-M4 to speed up NIST PQC candidates, Matthias J. Kannwischer, Joost Rijneveld, and Peter Schwabe [paper|code|bibtex]

Software

• PQClean Clean implementations of NISTPQC candidates (Work in Progress) [code]
• PQM4 Post-quantum crypto library for the ARM Cortex-M4 [code]
• polymul-ℤ_2^m[x]-m4 Faster multiplication in ℤ_2^m[x] on Cortex-M4 [code]

Reviewing

• 2019 Reviewer for EuroS&P 2019
• 2018 Reviewer for ESORICS 2018, Kangacrypt 2018, and Indocrypt 2018

Talks and Posters

• 07 Jan 2019 Faster multiplication in ℤ_2^m[x] on Cortex-M4 to speed up NIST PQC candidates, Cryptography Research Inc., San Francisco, USA [slides]
• 15 Nov 2018 Building and Breaking Post-Quantum Cryptography, RheinMain University of Applied Sciences, Wiesbaden, Germany [slides|handoutslides]
• 09 Nov 2018 Faster multiplication in ℤ_2^m[x] on Cortex-M4 to speed up NIST PQC candidates, Crypto Working Group, Utrecht, The Netherlands [slides]
• 03 Sep 2018 Fast Ideal Lattice-Based KEMs on ARM Cortex-M4, School on Security & Correctness in the Internet of Things 2018 - PhD Forum, Graz, Austria [slides]
• 06 Jun 2018Breaking Lattice-Based Signatures Using Fault Injection, Surrey Centre for Cyber Security, Guildford, United Kingdom
• 24 Apr 2018Differential Power Analysis of XMSS and SPHINCS, 9th International Workshop on Constructive Side-Channel Analysis and Secure Design (COSADE), Singapore [paper|slides]
• 16 Apr 2018Differential Power Analysis of XMSS and SPHINCS, CRYPTACUS Training School - PhD Session, Ponta Delgada, Azores, Portugal [poster|pitch slides|extended abstract]
• 27 Mar 2018Differential Power Analysis and Fault Attacks on Hash-Based Signature Schemes, Radboud University, Nijmegen, The Netherlands [slides]
• 16 Mar 2018 Differential Power Analysis of XMSS and SPHINCS, DS lunch colloquium, Radboud University, Nijmegen, The Netherlands [slides]
• 16 Feb 2018NIST PQC, Secure Systems Reading Group, Surrey Centre for Cyber Security, Guildford, United Kingdom
• 25 Jan 2018 Practical Post-Quantum Cryptography for Trusted Computing, Workshop on Trusted Computing and its Applications (TCA), Surrey Centre for Cyber Security, Guildford, United Kingdom [slides]
• 15 Dec 2017 Practical Lattice-Based Cryptography and Kyber - a CCA-secure KEM, Secure Systems Reading Group, Surrey Centre for Cyber Security, Guildford, United Kingdom
• 21 Sep 2017 Physical Attack Vulnerability of Hash-Based Signature Schemes, CDC Oberseminar, TU Darmstadt, Germany

Teaching

• Spring 2019 Teaching assistant for NWI-IMC039: Cryptographic Engineering taught by Lejla Batina and Peter Schwabe
• Guest lecture on Post-Quantum Cryptography at DHBW Stuttgart
• Fall 2018 Teaching assistant for NWI-IPC021: Security taught by Bart Jacobs and Joan Daemen
• Guest lecture on Post-Quantum Cryptography at RheinMain University of Applied Sciences
• Spring 2018 Teaching assistant for COMM036: Multimedia Security and Digital Forensics taught by Kaitai Liang
• Fall 2017 Teaching assistant for COMM037: Information Security Managament taught by David Williams
• 2017 Bachelor thesis supervision: Felix Schabernack