Hi! I am a researcher in cryptography at Consensys, where I work on efficient arguments of knowledge. In Spring 2023, I obtained my PhD in Computer Science from ETH Zurich, under the supervision of Prof. Dennis Hofheinz. During my PhD, my main research interests were at the intersection between zero-knowledge, functional encryption and indistinguishability obfuscation.
bogdanursuoffice AT gmail.com
Doctorate in Computer Science -
Bachelor of Computer Science -
University Alexandru Ioan Cuza of Iasi.
Romain Gay, Bogdan Ursu, On the Feasibility of Unleveled Fully-Homomorphic Signatures, Preprint
Dennis Hofheinz, Kristina Hostakova, Roman Langrehr, Bogdan Ursu, On Structure-Preserving Cryptography and Lattices, Preprint
Geoffroy Couteau, Shuichi Katsumata, Elahe Sadeghi, Bogdan Ursu, Statistical ZAPs from Group-Based Assumptions, TCC 2021
Nico Döttling, Dominik Hartmann, Dennis Hofheinz, Eike Kiltz, Sven Schäge, Bogdan Ursu, On the Impossibility of Short Algebraic Signatures, TCC 2021
Michel Abdalla, Dario Catalano, Romain Gay, Bogdan Ursu, Inner-Product Functional Encryption with Fine-Grained Access Control, Asiacrypt 2020
Geoffroy Couteau, Shuichi Katsumata, Bogdan Ursu, Non-Interactive Zero-Knowledge in Pairing-Free Groups from Weaker Assumptions, Eurocrypt 2020
Dennis Hofheinz, Bogdan Ursu, Dual-Mode NIZKs from Obfuscation, Asiacrypt 2019
Michel Abdalla, Dario Catalano, Dario Fiore, Romain Gay, Bogdan Ursu, Multi-Input Functional Encryption for Inner Products: Function-Hiding Realizations and Constructions without Pairings, Crypto 2018
Bogdan Ursu, New Constructions of Round-Efficient Zero-Knowledge Proofs, ETH Zurich Online Library 2023