Presentations

IND-CCA security of KEMs and decryption failures

06/2020: Tighter proofs of CCA security in the quantum random oracle model; Seminar, University of Ottawa, Ottawa, Canada (online); [slides]

05/2020: Lattice-based cryptography–an example for quantum-secure cryptography; Seminar, University of Waterloo, Waterloo, Canada (online); [slides]

01/2020: On the IND-CCA security of post-quantum public-key encryption schemes; Seminar, Yale University, New Haven, USA; [slides]

12/2019: Tighter proofs of CCA security in the quantum random oracle model; Conference, IMACC 2019, Oxford, UK; [slides]

12/2019: Tighter proofs of CCA security in the quantum random oracle model; Conference, TCC 2019, Nuremberg, Germany; [slides]


Hybrid/Composite schemes

01/2019: Hybrid Cryptography for a Post-Quantum Transition; Seminar, Microsoft Research, Redmond, USA

11/2017: Transitioning to a Quantum-Resistant Public Key Infrastructure; Workshop, Workshop on Cryptography for the Internet of Things and Cloud, Bochum, Germany; [slides]

06/2017: Transitioning to a Quantum-Resistant Public Key Infrastructure; Conference, PQCrypto 2017; [slides]


Lattices and the TESLA family

05/2017: Ein deutsches digitales Signaturverfahren auf dem Weg zum internationalen kryptographischen Standard; Conference, 15. IT-Sicherheitskongress; [slides]

06/2016: Towards Practical Lattice-Based Signature Schemes; Seminar, Institute for Quantum Computing, University of Waterloo, Canada

11/2015: Towards Practical and Provably Secure Lattice-Based Signatures; Workshop, CrossFyre 2015, Nijmegen, The Netherlands

04/2016: An Efficient Lattice-Based Signature Scheme with Provably Secure Instantiation; Conference, AfricaCrypt 2016, Fés, Morocco; [slides]

06/2015: TESLA: Tightly-Secure Efficient Signature Scheme from Standard Lattices; Workshop, The Mathematics of Modern Cryptography, Berkeley, USA


Fault and side channel attacks

12/2017: If and how implementation attacks shape the design of lattice-based signature schemes; Conference, 16th IMA International conference on cryptography and coding; Oxford, UK; [slides]

10/2017: Hampering fault attacks against lattice-based signature schemes— countermeasures and their efficiency; Conference, CODES/ISSS 2017 Companion, Seoul, South Korea; [slides]

08/2016: Lattice-Based Signature Schemes and their Sensitivity to Fault Attacks; Workshop, FDTC 2016, Santa Barbara, USA; [slides]