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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
Research Interests
Research Interests
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
Research Grants
Research Grants
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
News
News
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!!
Joined the PC of ACM CCS 2025! Grateful to serve ACM CCS for the first time! Thank you!
Accepted paper at CRYPTO 2024: Fine-Grained Non-Interactive Key-Exchange without Idealized Assumptions (Joint work with Yuyu Wang and Chuanjie Su)
Joined the PC of Asiacrypt 2024! Thank you for inviting me!
My great pleasure to be the program chair of PKC 2025 with Tibor Jager!
Two papers accepted at EUROCRYPT 2024! A very nice start of the year!
Very happy that our paper (with Runzhi Zeng) "Selective Opening Security in the Quantum Random Oracle Model, Revisited" got accepted at PKC 2024! Personlly speaking, it is a very nice result (beyond SOA) and I hope it will have further application of our techniques!
Professional Activities
Professional Activities
Program (Co-)Chair:
Program (Co-)Chair:
IACR PKC: 2025
Program Committee Member
Program Committee Member
ACM CCS: 2025
ACM AsiaCCS: 2026
IACR CRYPTO: 2024
IACR PKC: 2022, 2026
ISC: 2023
ICICS: 2023
SCN: 2024
ArcticCrypt: 2025
Editorial Board
Editorial Board
IACR Communications in Cryptology (2025)
Reviewer for Scientific Conferences and Journals
Reviewer for Scientific Conferences and Journals
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.
Reviewer for Grants
Reviewer for Grants
DAAD: 2025
DFG: 2022
Peder Sather Grant: 2025
Organizing Committee Member
Organizing Committee Member
IACR EUROCRYPT: 2022
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