I am a Professor at the University of Kassel (Germany) and Associate Professor (førsteamanuensis, part-time) at NTNU (Norway).
Before that I was a postdoc at KIT (Germany) in the group of Dennis Hofheinz. In July 2016 I obtained my PhD from Ruhr-University Bochum (Germany) under the supervision of Eike Kiltz. I am interested in theoretical and practical cryptography in general.
Email: first.last at uni-kassel.de
I am interested in both theory and practice of cryptography, and I am passionate in using sound tools from theory of cryptography to prove security of applied cryptosystems and bridging the gap between them. My research topics include:
Techniques in achieving tight security
Foundations for secure communication, such as (password-based) key exchange protocols
Efficient quantum-secure lattice-based cryptosystems
Foundations for privacy, such as (non-interactive) zero-knowledge proof systems
Fine-grained cryptography
2022 – 2026: NTNU Outstanding Academic Fellows Programme (Career development award)
2021 – 2026: Principal investigator of a Young Research Talent project, Research Council of Norway, under the topic ground-breaking research (FRIPRO)
2021 – 2023: Principal investigator (jointly with Sanjam Garg from UC Berkeley) of a Peder Sather Grant
Invited to the Editorial Board of IET Information Security! Happily accepted and thanks!!
Joined the PC of ACM CCS 2026! Grateful to serve ACM CCS again! Thank you!
Motivated by this, I am considering limiting my use of social media and emails. 🤔 So, it won't be surprised if you don't get an answer for 1-2 days ...
What if we replace X3DH in Signal with HMQV? Well, it will be more efficient and more secure! Very happy that our paper (with Rune Fiedler, Felix Günther, and Runzhi Zeng) "XHMQV: Better Efficiency and Stronger Security for Signal's Initial Handshake based on HMQV" was accepted at CRYPTO 2025!!
IACR PKC: 2025
IET Information Security (2025 – )
IACR Communications in Cryptology (2025)
Conferences: STOC, CRYPTO, EUROCRYPT, ASIACRYPT, TCC, PKC, CCS, CT-RSA, etc.
Journals: ACM Transactions on Algorithms; Journal of Cryptology; Designs, Codes, and Cryptography; IET Information Security; Theoretical Computer Science.
DAAD (the German Academic Exchange Service): 2025
DFG (the German Research Foundation): 2022
GACR (the Czech Science Foundation): 2025
Peder Sather Grant: 2025
IACR EUROCRYPT: 2022