Joël Alwen

Vienna Science and Technology Fund — Austria

Computer Science · Physical Sciences

25h-index2.6kcitations68works0.82yr avg
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Research Topics

Cryptography and Data Security(44), Cryptographic Implementations and Security(31), Security in Wireless Sensor Networks(14), Complexity and Algorithms in Graphs(13), Advanced Authentication Protocols Security(10)

Publications68 total

Policy Compliant Secure Messaging
Lecture notes in computer science·2025Open Access
Succinct PPRFs via Memory-Tight Reductions
Lecture notes in computer science·2025
Updatable Public-Key Encryption, Revisited
Lecture notes in computer science·2024· 1 cited
DeCAF: Decentralizable CGKA with Fast Healing
Lecture notes in computer science·2024· 2 cited
Post-Quantum Multi-Recipient Public Key Encryption
2023· 6 citedOpen Access
The Pre-Shared Key Modes of HPKE
Lecture notes in computer science·2023· 3 citedOpen Access
Fork-Resilient Continuous Group Key Agreement
Lecture notes in computer science·2023· 12 cited
Server-Aided Continuous Group Key Agreement
Proceedings of the 2022 ACM SIGSAC Conference on Computer and Communications Security·2022· 19 citedOpen Access
On the Insider Security of MLS
Lecture notes in computer science·2022· 1 cited
CoCoA: Concurrent Continuous Group Key Agreement
Lecture notes in computer science·2022· 25 cited
Modular Design of Secure Group Messaging Protocols and the Security of MLS
2021· 1 cited
Keep the Dirt: Tainted TreeKEM, Adaptively and Actively Secure Continuous Group Key Agreement
2021· 28 cited
Analysing the HPKE Standard
Lecture notes in computer science·2021· 24 cited
Grafting Key Trees: Efficient Key Management for Overlapping Groups
Lecture notes in computer science·2021· 1 cited
Continuous Group Key Agreement with Active Security
Lecture notes in computer science·2020· 1 cited
Analysing the HPKE Standard.
IACR Cryptology ePrint Archive·2020· 3 citedOpen Access
Security Analysis and Improvements for the IETF MLS Standard for Group Messaging
Lecture notes in computer science·2020· 79 cited
Keep the Dirt: Tainted TreeKEM, Adaptively and Actively Secure Continuous Group Key Agreement
IACR Cryptology ePrint Archive·2019· 6 cited
The Double Ratchet: Security Notions, Proofs, and Modularization for the Signal Protocol
Lecture notes in computer science·2019· 104 cited
Security Analysis and Improvements for the IETF MLS Standard for Group Messaging.
IACR Cryptology ePrint Archive·2019· 3 cited
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Frequent Co-authors

Krzysztof Pietrzak(16), Yevgeniy Dodis(7), Jeremiah Blocki(7), Karen Klein(7), Chethan Kamath(6), Daniel Wichs(5), Guillermo Pascual-Perez(5), Miguel Cueto Noval(5), Eike Kiltz(5), Peter Gaži(4), Sandro Coretti(4), Leonid Reyzin(4), Stefano Tessaro(4), Michael Walter(4), Marta Mularczyk(4), Chris Peikert(3), Georg Fuchsbauer(3), Yiannis Tselekounis(3), Binyi Chen(3), Ivan Visconti(3)