Joël Alwen

82 papers A* 12A 4C 1Misc 1Journal 38Unranked 25
YearRankTypeTitle / Venue / Authors
2025 J jnl
Lattice-Based Updatable Public-Key Encryption for Group Messaging.
IACR Cryptol. ePrint Arch.
Joël Alwen, Georg Fuchsbauer, Marta Mularczyk, Doreen Riepel
2025 — conf
Policy Compliant Secure Messaging.
ASIACRYPT (2)
Joël Alwen, Xiaohui Ding, Sanjam Garg, Yiannis Tselekounis
2025 J jnl
Policy Compliant Secure Messaging.
IACR Cryptol. ePrint Arch.
Joël Alwen, Xiaohui Ding, Sanjam Garg, Yiannis Tselekounis
2025 — conf
Succinct PPRFs via Memory-Tight Reductions.
CRYPTO (5)
Joël Alwen, Chris Brzuska, Jérôme Govinden, Patrick Harasser, Stefano Tessaro
2025 J jnl
Updatable Public-Key Encryption, Revisited.
IACR Cryptol. ePrint Arch.
Joël Alwen, Georg Fuchsbauer, Marta Mularczyk
2024 — conf
DeCAF: Decentralizable CGKA with Fast Healing.
SCN (2)
Joël Alwen, Benedikt Auerbach, Miguel Cueto Noval, Karen Klein, Guillermo Pascual-Perez, Krzyzstof Pietrzak
2024 — conf
Updatable Public-Key Encryption, Revisited.
EUROCRYPT (6)
Joël Alwen, Georg Fuchsbauer, Marta Mularczyk
2023 — conf
Fork-Resilient Continuous Group Key Agreement.
CRYPTO (4)
Joël Alwen, Marta Mularczyk, Yiannis Tselekounis
2023 J jnl
Fork-Resilient Continuous Group Key Agreement.
IACR Cryptol. ePrint Arch.
Joël Alwen, Marta Mularczyk, Yiannis Tselekounis
2023 A* conf
Post-Quantum Multi-Recipient Public Key Encryption.
CCS
Joël Alwen, Dominik Hartmann, Eike Kiltz, Marta Mularczyk, Peter Schwabe
2023 — conf
The Pre-Shared Key Modes of HPKE.
ASIACRYPT (6)
Joël Alwen, Jonas Janneck, Eike Kiltz, Benjamin Lipp
2023 J jnl
The Pre-Shared Key Modes of HPKE.
IACR Cryptol. ePrint Arch.
Joël Alwen, Jonas Janneck, Eike Kiltz, Benjamin Lipp
2022 — conf
CoCoA: Concurrent Continuous Group Key Agreement.
EUROCRYPT (2)
Joël Alwen, Benedikt Auerbach, Miguel Cueto Noval, Karen Klein, Guillermo Pascual-Perez, Krzysztof Pietrzak, Michael Walter
2022 J jnl
CoCoA: Concurrent Continuous Group Key Agreement.
IACR Cryptol. ePrint Arch.
Joël Alwen, Benedikt Auerbach, Miguel Cueto Noval, Karen Klein, Guillermo Pascual-Perez, Krzysztof Pietrzak, Michael Walter
2022 J jnl
Coffee: Fast Healing Concurrent Continuous Group Key Agreement for Decentralized Group Messaging.
IACR Cryptol. ePrint Arch.
Joël Alwen, Benedikt Auerbach, Miguel Cueto Noval, Karen Klein, Guillermo Pascual-Perez, Krzysztof Pietrzak
2022 — conf
On the Insider Security of MLS.
CRYPTO (2)
Joël Alwen, Daniel Jost, Marta Mularczyk
2022 J jnl
Post-Quantum Multi-Recipient Public Key Encryption.
IACR Cryptol. ePrint Arch.
Joël Alwen, Dominik Hartmann, Eike Kiltz, Marta Mularczyk, Peter Schwabe
2022 A* conf
Server-Aided Continuous Group Key Agreement.
CCS
Joël Alwen, Dominik Hartmann, Eike Kiltz, Marta Mularczyk
2021 — conf
Analysing the HPKE Standard.
EUROCRYPT (1)
Joël Alwen, Bruno Blanchet, Eduard Hauck, Eike Kiltz, Benjamin Lipp, Doreen Riepel
2021 — conf
Grafting Key Trees: Efficient Key Management for Overlapping Groups.
TCC (3)
Joël Alwen, Benedikt Auerbach, Mirza Ahad Baig, Miguel Cueto Noval, Karen Klein, Guillermo Pascual-Perez, Krzysztof Pietrzak, Michael Walter
2021 J jnl
Grafting Key Trees: Efficient Key Management for Overlapping Groups.
IACR Cryptol. ePrint Arch.
Joël Alwen, Benedikt Auerbach, Mirza Ahad Baig, Miguel Cueto, Karen Klein, Guillermo Pascual-Perez, Krzysztof Pietrzak, Michael Walter
2021 A* conf
Keep the Dirt: Tainted TreeKEM, Adaptively and Actively Secure Continuous Group Key Agreement.
SP
Karen Klein, Guillermo Pascual-Perez, Michael Walter, Chethan Kamath, Margarita Capretto, Miguel Cueto, Ilia Markov, Michelle Yeo, Joël Alwen, Krzysztof Pietrzak
2021 A* conf
Modular Design of Secure Group Messaging Protocols and the Security of MLS.
CCS
Joël Alwen, Sandro Coretti, Yevgeniy Dodis, Yiannis Tselekounis
2021 J jnl
Modular Design of Secure Group Messaging Protocols and the Security of MLS.
IACR Cryptol. ePrint Arch.
Joël Alwen, Sandro Coretti, Yevgeniy Dodis, Yiannis Tselekounis
2021 J jnl
Server-Aided Continuous Group Key Agreement.
IACR Cryptol. ePrint Arch.
Joël Alwen, Dominik Hartmann, Eike Kiltz, Marta Mularczyk
2020 J jnl
Analysing the HPKE Standard.
IACR Cryptol. ePrint Arch.
Joël Alwen, Bruno Blanchet, Eduard Hauck, Eike Kiltz, Benjamin Lipp, Doreen Riepel
2020 — conf
Continuous Group Key Agreement with Active Security.
TCC (2)
Joël Alwen, Sandro Coretti, Daniel Jost, Marta Mularczyk
2020 J jnl
Continuous Group Key Agreement with Active Security.
IACR Cryptol. ePrint Arch.
Joël Alwen, Sandro Coretti, Daniel Jost, Marta Mularczyk
2020 J jnl
On The Insider Security of MLS.
IACR Cryptol. ePrint Arch.
Joël Alwen, Daniel Jost, Marta Mularczyk
2020 — conf
Security Analysis and Improvements for the IETF MLS Standard for Group Messaging.
CRYPTO (1)
Joël Alwen, Sandro Coretti, Yevgeniy Dodis, Yiannis Tselekounis
2019 J jnl
Keep the Dirt: Tainted TreeKEM, an Efficient and Provably Secure Continuous Group Key Agreement Protocol.
IACR Cryptol. ePrint Arch.
Joël Alwen, Margarita Capretto, Miguel Cueto, Chethan Kamath, Karen Klein, Guillermo Pascual-Perez, Krzysztof Pietrzak, Michael Walter
2019 J jnl
Security Analysis and Improvements for the IETF MLS Standard for Group Messaging.
IACR Cryptol. ePrint Arch.
Joël Alwen, Sandro Coretti, Yevgeniy Dodis, Yiannis Tselekounis
2019 — conf
The Double Ratchet: Security Notions, Proofs, and Modularization for the Signal Protocol.
EUROCRYPT (1)
Joël Alwen, Sandro Coretti, Yevgeniy Dodis
2018 A conf
On the Memory-Hardness of Data-Independent Password-Hashing Functions.
AsiaCCS
Joël Alwen, Peter Gazi, Chethan Kamath, Karen Klein, Georg Osang, Krzysztof Pietrzak, Leonid Reyzin, Michal Rolínek, Michal Rybár
2018 — conf
SpaceMint: A Cryptocurrency Based on Proofs of Space.
Financial Cryptography
Sunoo Park, Albert Kwon, Georg Fuchsbauer, Peter Gazi, Joël Alwen, Krzysztof Pietrzak
2018 — conf
Sustained Space Complexity.
EUROCRYPT (2)
Joël Alwen, Jeremiah Blocki, Krzysztof Pietrzak
2018 J jnl
Sustained Space Complexity.
IACR Cryptol. ePrint Arch.
Joël Alwen, Jeremiah Blocki, Krzysztof Pietrzak
2018 J jnl
The Double Ratchet: Security Notions, Proofs, and Modularization for the Signal Protocol.
IACR Cryptol. ePrint Arch.
Joël Alwen, Sandro Coretti, Yevgeniy Dodis
2017 — conf
Beyond Hellman's Time-Memory Trade-Offs with Applications to Proofs of Space.
ASIACRYPT (2)
Hamza Abusalah, Joël Alwen, Bram Cohen, Danylo Khilko, Krzysztof Pietrzak, Leonid Reyzin
2017 J jnl
Beyond Hellman's Time-Memory Trade-Offs with Applications to Proofs of Space.
IACR Cryptol. ePrint Arch.
Hamza Abusalah, Joël Alwen, Bram Cohen, Danylo Khilko, Krzysztof Pietrzak, Leonid Reyzin
2017 A conf
Cumulative Space in Black-White Pebbling and Resolution.
ITCS
Joël Alwen, Susanna F. de Rezende, Jakob Nordström, Marc Vinyals
2017 — conf
Depth-Robust Graphs and Their Cumulative Memory Complexity.
EUROCRYPT (3)
Joël Alwen, Jeremiah Blocki, Krzysztof Pietrzak
2017 — conf
Moderately Hard Functions: Definition, Instantiations, and Applications.
TCC (1)
Joël Alwen, Björn Tackmann
2017 J jnl
Moderately Hard Functions: Definition, Instantiations, and Applications.
IACR Cryptol. ePrint Arch.
Joël Alwen, Björn Tackmann
2017 A* conf
Practical Graphs for Optimal Side-Channel Resistant Memory-Hard Functions.
CCS
Joël Alwen, Jeremiah Blocki, Benjamin Harsha
2017 J jnl
Practical Graphs for Optimal Side-Channel Resistant Memory-Hard Functions.
IACR Cryptol. ePrint Arch.
Joël Alwen, Jeremiah Blocki, Benjamin Harsha
2017 — conf
Scrypt Is Maximally Memory-Hard.
EUROCRYPT (3)
Joël Alwen, Binyi Chen, Krzysztof Pietrzak, Leonid Reyzin, Stefano Tessaro
2017 J jnl
Sustained Space Complexity.
CoRR
Joël Alwen, Jeremiah Blocki, Krzysztof Pietrzak
2017 A conf
Towards Practical Attacks on Argon2i and Balloon Hashing.
EuroS&P
Joël Alwen, Jeremiah Blocki
2016 J jnl
Depth-Robust Graphs and Their Cumulative Memory Complexity.
IACR Cryptol. ePrint Arch.
Joël Alwen, Jeremiah Blocki, Krzysztof Pietrzak
2016 — conf
Efficiently Computing Data-Independent Memory-Hard Functions.
CRYPTO (2)
Joël Alwen, Jeremiah Blocki
2016 J jnl
Efficiently Computing Data-Independent Memory-Hard Functions.
IACR Cryptol. ePrint Arch.
Joël Alwen, Jeremiah Blocki
2016 — conf
On the Complexity of Scrypt and Proofs of Space in the Parallel Random Oracle Model.
EUROCRYPT (2)
Joël Alwen, Binyi Chen, Chethan Kamath, Vladimir Kolmogorov, Krzysztof Pietrzak, Stefano Tessaro
2016 J jnl
On the Complexity of Scrypt and Proofs of Space in the Parallel Random Oracle Model.
IACR Cryptol. ePrint Arch.
Joël Alwen, Binyi Chen, Chethan Kamath, Vladimir Kolmogorov, Krzysztof Pietrzak, Stefano Tessaro
2016 J jnl
On the Memory-Hardness of Data-Independent Password-Hashing Functions.
IACR Cryptol. ePrint Arch.
Joël Alwen, Peter Gazi, Chethan Kamath, Karen Klein, Georg Osang, Krzysztof Pietrzak, Leonid Reyzin, Michal Rolínek, Michal Rybár
2016 J jnl
Scrypt is Maximally Memory-Hard.
IACR Cryptol. ePrint Arch.
Joël Alwen, Binyi Chen, Krzysztof Pietrzak, Leonid Reyzin, Stefano Tessaro
2016 J jnl
Towards Practical Attacks on Argon2i and Balloon Hashing.
IACR Cryptol. ePrint Arch.
Joël Alwen, Jeremiah Blocki
2015 A* conf
High Parallel Complexity Graphs and Memory-Hard Functions.
STOC
Joël Alwen, Vladimir Serbinenko
2015 — conf
Incoercible Multi-party Computation and Universally Composable Receipt-Free Voting.
CRYPTO (2)
Joël Alwen, Rafail Ostrovsky, Hong-Sheng Zhou, Vassilis Zikas
2015 J jnl
Spacemint: A Cryptocurrency Based on Proofs of Space.
IACR Cryptol. ePrint Arch.
Sunoo Park, Krzysztof Pietrzak, Albert Kwon, Joël Alwen, Georg Fuchsbauer, Peter Gazi
2014 — conf
Anonymous Authentication with Shared Secrets.
LATINCRYPT
Joël Alwen, Martin Hirt, Ueli Maurer, Arpita Patra, Pavel Raykov
2014 J jnl
Anonymous Authentication with Shared Secrets.
IACR Cryptol. ePrint Arch.
Joël Alwen, Martin Hirt, Ueli Maurer, Arpita Patra, Pavel Raykov
2014 J jnl
High Parallel Complexity Graphs and Memory-Hard Functions.
IACR Cryptol. ePrint Arch.
Joël Alwen, Vladimir Serbinenko
2014 Misc conf
Key-Indistinguishable Message Authentication Codes.
SCN
Joël Alwen, Martin Hirt, Ueli Maurer, Arpita Patra, Pavel Raykov
2014 J jnl
Key-Indistinguishable Message Authentication Codes.
IACR Cryptol. ePrint Arch.
Joël Alwen, Martin Hirt, Ueli Maurer, Arpita Patra, Pavel Raykov
2013 — conf
Learning with Rounding, Revisited - New Reduction, Properties and Applications.
CRYPTO (1)
Joël Alwen, Stephan Krenn, Krzysztof Pietrzak, Daniel Wichs
2013 J jnl
Learning with Rounding, Revisited: New Reduction, Properties and Applications.
IACR Cryptol. ePrint Arch.
Joël Alwen, Stephan Krenn, Krzysztof Pietrzak, Daniel Wichs
2013 C conf
On the Relationship between Functional Encryption, Obfuscation, and Fully Homomorphic Encryption.
IMACC
Joël Alwen, Manuel Barbosa, Pooya Farshim, Rosario Gennaro, S. Dov Gordon, Stefano Tessaro, David A. Wilson
2012 A* conf
Collusion-Preserving Computation.
CRYPTO
Joël Alwen, Jonathan Katz, Ueli Maurer, Vassilis Zikas
2011 — —
Collusion Preserving Computation.
Joël Alwen
2011 J jnl
Collusion-Preserving Computation.
IACR Cryptol. ePrint Arch.
Joël Alwen, Jonathan Katz, Ueli Maurer, Vassilis Zikas
2011 J jnl
Generating Shorter Bases for Hard Random Lattices.
Theory Comput. Syst.
Joël Alwen, Chris Peikert
2010 A* conf
Public-Key Encryption in the Bounded-Retrieval Model.
EUROCRYPT
Joël Alwen, Yevgeniy Dodis, Moni Naor, Gil Segev, Shabsi Walfish, Daniel Wichs
2009 A* conf
Collusion-Free Multiparty Computation in the Mediated Model.
CRYPTO
Joël Alwen, Jonathan Katz, Yehuda Lindell, Giuseppe Persiano, Abhi Shelat, Ivan Visconti
2009 A conf
Generating Shorter Bases for Hard Random Lattices.
STACS
Joël Alwen, Chris Peikert
2009 A* conf
Leakage-Resilient Public-Key Cryptography in the Bounded-Retrieval Model.
CRYPTO
Joël Alwen, Yevgeniy Dodis, Daniel Wichs
2009 J jnl
Leakage-Resilient Public-Key Cryptography in the Bounded-Retrieval Model.
IACR Cryptol. ePrint Arch.
Joël Alwen, Yevgeniy Dodis, Daniel Wichs
2009 J jnl
Public-Key Encryption in the Bounded-Retrieval Model.
IACR Cryptol. ePrint Arch.
Joël Alwen, Yevgeniy Dodis, Moni Naor, Gil Segev, Shabsi Walfish, Daniel Wichs
2009 — conf
Survey: Leakage Resilience and the Bounded Retrieval Model.
ICITS
Joël Alwen, Yevgeniy Dodis, Daniel Wichs
2008 A* conf
Collusion-Free Protocols in the Mediated Model.
CRYPTO
Joël Alwen, Abhi Shelat, Ivan Visconti
2008 J jnl
Generating Shorter Bases for Hard Random Lattices.
IACR Cryptol. ePrint Arch.
Joël Alwen, Chris Peikert
2005 A* conf
Impossibility and Feasibility Results for Zero Knowledge with Public Keys.
CRYPTO
Joël Alwen, Giuseppe Persiano, Ivan Visconti