Publications
- Ko Stoffelen. Optimizations in Symmetric Cryptography. PhD thesis 2022. [pdf]
- Hannes Gross, Ko Stoffelen, Lauren De Meyer, Martin Krenn, Stefan Mangard. Masking the AES with Only Two Random Bits. Theory of Implementation Security Workshop @ ACM CCS 2019. [pdf | code]
- Matthias J. Kannwischer, Joost Rijneveld, Peter Schwabe, Ko Stoffelen. pqm4: Testing and Benchmarking NIST PQC on ARM Cortex-M4. Second NIST PQC Standardization Conference 2019. [pdf | code]
- Ko Stoffelen. Efficient Cryptography on the RISC-V Architecture. Latincrypt 2019. [pdf | code]
- Ko Stoffelen and Joan Daemen. Column Parity Mixers. ToSC 2018 Issue 1. [pdf | cipher | trail search]
- Benjamin Grégoire, Kostas Papagiannopoulos, Peter Schwabe, Ko Stoffelen. Vectorizing Higher-Order Masking. COSADE 2018. [pdf | code]
- Thorsten Kranz, Gregor Leander, Ko Stoffelen, Friedrich Wiemer. Shorter Linear Straight-Line Programs for MDS Matrices. ToSC 2017 Issue 4. [pdf | code]
- Ko Stoffelen. Instruction Scheduling and Register Allocation on ARM Cortex-M. SPEED-B 2016. [pdf]
- Peter Schwabe and Ko Stoffelen. All the AES You Need on Cortex-M3 and M4. SAC 2016. [pdf | code]
- Ko Stoffelen. Optimizing S-box Implementations for Several Criteria using SAT Solvers. FSE 2016. [pdf | code]
- Ko Stoffelen. Intrinsic Side-Channel Analysis Resistance and Efficient Masking. MSc thesis. [pdf]
Talks
- 2022-06-01 Optimizations in Symmetric Cryptography, at my PhD defense in Nijmegen. [pdf]
- 2019-10-04 Efficient Cryptography on the RISC-V Architecture, at Latincrypt 2019 in Santiago. [pdf]
- 2019-09-06 pqm4: Testing and Benchmarking NIST PQC on ARM Cortex-M4, at Crypto Working Group in Utrecht. [pdf]
- 2019-06-04 Vectorizing Higher-Order Masking, at Crypto Group seminar in Louvain-la-Neuve. [pdf]
- 2018-04-23 Vectorizing Higher-Order Masking, at COSADE 2018 in Singapore. [pdf]
- 2018-04-16 Mixing Layers in Symmetric Crypto, at the CRYPTACUS training school in Ponta Delgada. [pdf]
- 2018-03-06 Column Parity Mixers, at FSE 2018 in Brugge. [pdf]
- 2018-02-09 Mixing Layers in Symmetric Crypto, at the DiS lunch colloquium in Nijmegen. [pdf]
- 2017-01-19 AES on the ARM Cortex-M3 and M4, at ESC 2017 in Canach. [pdf]
- 2016-10-20 Instruction Scheduling and Register Allocation on ARM Cortex-M, at SPEED-B in Utrecht. [pdf]
- 2016-08-10 All the AES You Need on Cortex-M3 and M4, at SAC 2016 in St. John's. [pdf]
- 2016-03-21 Optimizing S-box Implementations for Several Criteria using SAT Solvers, at FSE 2016 in Bochum. [pdf]
- 2016-01-08 Optimizing S-box Implementations for Several Criteria using SAT Solvers, at the DS lunch colloquium in Nijmegen. [pdf]
- 2015-09-29 Optimising masking costs of CAESAR candidates, at DIAC 2015 in Singapore. [pdf]
- 2015-09-25 Intrinsic Side-Channel Analysis Resistance and Efficient Masking, at the Ei/Ψ Crypto Working Group in Utrecht. [pdf]
- 2015-08-27 Intrinsic Side-Channel Analysis Resistance and Efficient Masking, MSc thesis presentation in Nijmegen. [pdf]