Faculty
Dr. Doreen Riepel is a tenure-track faculty at CISPA Helmholtz Center for Information Security. Her research focuses on the theoretical foundations of cryptography and provable security, in particular on the analysis and design of cryptographic schemes and protocols. She works on protocols for authenticated key exchange and secure communication, public-key encryption with advanced functionalities, post-quantum cryptography and formal security proofs. Previously, Doreen was a postdoctoral researcher at the University of California, San Diego. She received her PhD from Ruhr University Bochum under the supervision of Prof. Dr. Eike Kiltz.
Advances in Cryptology (CRYPTO) Lattice-Based Updatable Public-Key Encryption for Group Messaging
International Conference on the Theory and Application of Cryptographic Techniques (EuroCrypt) Secure Cloud Storage: Modularization, Network Adversaries and Adaptive Corruptions
International Conference on the Theory and Application of Cryptographic Techniques (EuroCrypt) The Algebraic Isogeny Model: A General Model with Applications to SQIsign and Key Exchanges
IACR Transactions on Cryptographic Hardware and Embedded Systems ABE Cubed: Advanced Benchmarking Extensions for ABE Squared
IEEE Conference on Secure and Trustworthy Machine Learning (SaTML) Verifiable and Provably Secure Machine Unlearning
International Conference on Practice and Theory in Public Key Cryptography (PKC) Public-Algorithm Substitution Attacks: Subverting Hashing and Verification
International Conference on Practice and Theory in Public Key Cryptography (PKC) Intermundium-DL: Assessing the Resilience of Current Schemes to Discrete-Log-Computation Attacks on Public Parameters
International Conference on the Theory and Application of Cryptology and Information Security (ASIACRYPT) The Concrete Security of Two-Party Computation: Simple Definitions, and Tight Proofs for PSI and OPRFs
International Conference on the Theory and Application of Cryptology and Information Security (ASIACRYPT) Count Corruptions, Not Users: Improved Tightness for Signatures, Encryption and Authenticated Key Exchange
Proceedings of the 2024 on ACM SIGSAC Conference on Computer and Communications Security