Publications

Joël Alwen, Georg Fuchsbauer, Marta Mularczyk, Doreen Riepel (2025). Lattice-Based Updatable Public-Key Encryption for Group Messaging. Cryptology ePrint Archive.

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Mihir Bellare, Doreen Riepel, Laura Shea (2025). Public-Algorithm Substitution Attacks: Subverting Hashing and Verification. PKC 2025.

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Mihir Bellare, Doreen Riepel, Laura Shea (2025). Intermundium-DL: Assessing the Resilience of Current Schemes to Discrete-Log-Computation Attacks on Public Parameters. PKC 2025.

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Thorsten Eisenhofer, Doreen Riepel, Varun Chandrasekaran, Esha Ghosh, Olga Ohrimenko, Nicolas Papernot (2025). Verifiable and Provably Secure Machine Unlearning. SaTML 2025.

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Emanuele Di Giandomenico, Doreen Riepel, Sven Schäge (2024). Tightly-Secure Group Key Exchange with Perfect Forward Secrecy. ASIACRYPT 2024.

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Mihir Bellare, Rishabh Ranjan, Doreen Riepel, Ali Aldakheel (2024). The Concrete Security of Two-Party Computation: Simple Definitions, and Tight Proofs for PSI and OPRFs. ASIACRYPT 2024.

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Mihir Bellare, Doreen Riepel, Stefano Tessaro, Yizhao Zhang (2024). Count Corruptions, Not Users: Improved Tightness for Signatures, Encryption and Authenticated Key Exchange. ASIACRYPT 2024.

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Daniel Collins, Doreen Riepel, Si An Oliver Tran (2024). On the Tight Security of the Double Ratchet. ACM CCS 2024.

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Doreen Riepel, Marloes Venema, Tanya Verma (2024). ISABELLA: Improving Structures of Attribute-Based Encryption Leveraging Linear Algebra. ACM CCS 2024.

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Jonas Meers, Doreen Riepel (2024). CCA Secure Updatable Encryption from Non-Mappable Group Actions. PQCrypto 2024.

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Jiaxin Pan, Doreen Riepel, Runzhi Zeng (2024). Key Exchange with Tight (Full) Forward Secrecy via Key Confirmation. EUROCRYPT 2024.

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Thorsten Eisenhofer, Erwin Quiring, Jonas Möller, Doreen Riepel, Thorsten Holz, Konrad Rieck (2023). No more Reviewer #2: Subverting Automatic Paper-Reviewer Assignment using Adversarial Learning. USENIX Security 2023.

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Julien Duman, Dominik Hartmann, Eike Kiltz, Sabrina Kunzweiler, Jonas Lehmann, Doreen Riepel (2023). Generic Models for Group Actions. PKC 2023.

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Eike Kiltz, Jiaxin Pan, Doreen Riepel, Magnus Ringerud (2023). Multi-User CDH Problems and the Concrete Security of NAXOS and HMQV. CT-RSA 2023.

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Doreen Riepel, Hoeteck Wee (2022). FABEO: Fast Attribute-Based Encryption with Optimal Security. ACM CCS 2022.

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Benjamin Dowling, Eduard Hauck, Doreen Riepel, Paul Rösler (2022). Strongly Anonymous Ratcheted Key Exchange. ASIACRYPT 2022.

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Julien Duman, Dominik Hartmann, Eike Kiltz, Sabrina Kunzweiler, Jonas Lehmann, Doreen Riepel (2022). Group Action Key Encapsulation and Non-Interactive Key Exchange in the QROM. ASIACRYPT 2022.

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Michel Abdalla, Thorsten Eisenhofer, Eike Kiltz, Sabrina Kunzweiler, Doreen Riepel (2022). Password-Authenticated Key Exchange from Group Actions. CRYPTO 2022.

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Shuai Han, Tibor Jager, Eike Kiltz, Shengli Liu, Jiaxin Pan, Doreen Riepel, Sven Schäge (2021). Authenticated Key Exchange and Signatures with Tight Security in the Standard Model. CRYPTO 2021.

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Tibor Jager, Eike Kiltz, Doreen Riepel, Sven Schäge (2021). Tightly-Secure Authenticated Key Exchange, Revisited. EUROCRYPT 2021.

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Joël Alwen, Bruno Blanchet, Eduard Hauck, Eike Kiltz, Benjamin Lipp, Doreen Riepel (2021). Analysing the HPKE Standard. EUROCRYPT 2021.

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