Research

Selected Publications

Agora: A Privacy-Aware Data Marketplace. V. Koutsos, D. Papadopoulos, D. Chatzopoulos, S. Tarkoma, P. Hui:: IEEE Trans. Dependable Secur. Comput. 2022 [PDF]

Dynamic Searchable Encryption with Optimal Search in the Presence of Deletions. J. G. Chamani, M. Karbasforushan, D. Papadopoulos, I. Demertzis: USENIX Security Symposium 2022 [PDF]

SecureBoost: A Lossless Federated Learning Framework. K. Cheng, T. Fan, Y. Jin, Y. Liu, T. Chen, D. Papadopoulos, Q. Yang: IEEE Intelligent Systems 2021 [PDF]

This Website Uses Nudging: MTurk Workers' Behaviour on Cookie Consent Notices. C. Bermejo Fernandez, D. Chatzopoulos, D. Papadopoulos, P. Hui: ACM CSCW 2021 [PDF]

Dynamic Searchable Encryption with Small Client Storage. I. Demertzis, J. G. Chamani, D. Papadopoulos, C. Papamanthou: NDSS 2020 [PDF]

MIRAGE: Succinct Arguments for Randomized Algorithms with Applications to Universal zk-SNARKs. A. E. Kosba, D. Papadopoulos, C. Papamanthou, D. Song: USENIX Security Symposium 2020 [PDF]

SEAL: Attack Mitigation for Encrypted Databases via Adjustable Leakage. I. Demertzis, D. Papadopoulos, C. Papamanthou, S. Shintre: USENIX Security Symposium 2020 [PDF]

Transparency Logs via Append-Only Authenticated Dictionaries. A. Tomescu, V. Bhupatiraju, D. Papadopoulos, C. Papamanthou, N. Triandopoulos, S. Devadas: ACM CCS 2019 [PDF]

BitExTract: Interactive Visualization for Extracting Bitcoin Exchange Intelligence. X. Yue, X. Shu, X. Zhu, X. Du, Z. Yu, D. Papadopoulos, S. Liu: IEEE Trans. Vis. Comput. Graph 2019 [PDF]

New Constructions for Forward and Backward Private Symmetric Searchable Encryption. J. G. Chamani, D. Papadopoulos, C. Papamanthou, R. Jalili. ACM CCS 2018 [PDF]

Searchable Encryption with Optimal Locality: Achieving Sublogarithmic Read Efficiency. I. Demertzis, D. Papadopoulos, C. Papamanthou. CRYPTO 2018 [PDF]

vRAM: Faster Verifiable RAM with Program-Independent Preprocessing. Y. Zhang, D. Genkin, J. Katz, D. Papadopoulos, C. Papamanthou. IEEE S&P 2018 [PDF]

Privacy in Decentralized Cryptocurrencies. D. Genkin, D. Papadopoulos, C. Papamanthou. Communications of the ACM June 2018 [link]

vSQL: Verifying Arbitrary SQL Queries over Dynamic Outsourced Databases. Y. Zhang, J. Katz, D. Genkin, D. Papadopoulos, C. Papamanthou. IEEE S&P 2017 [PDF]

Zero-Knowledge Accumulators and Set Algebra. E. Ghosh, O. Ohrimenko, D. Papadopoulos, R. Tamassia, N. Triandopoulos. Asiacrypt 2016 [PDF]

Practical Authenticated Pattern Matching with Optimal Proof Size. D. Papadopoulos, C. Papamanthou, R. Tamassia, N. Triandopoulos. VLDB 2015 [PDF]

NSEC5: Provably Preventing DNSSEC Zone Enumeration. S. Goldberg, M. Naor, D. Papadopoulos, L. Reyzin, S. Vasant, A. Ziv. NDSS 2015 [PDF]

Taking Authenticated Range Queries to Arbitrary Dimensions. D. Papadopoulos, S. Papadopoulos, N. Triandpoulos. ACM CCS 2014 [PDF]

TRUESET: Faster Verifiable Set Computations. A. Kosba, D. Papadopoulos, C. Papamanthou, M. Sayed, E. Shi, N. Triandopoulos. USENIX Security 2014 [PDF]

Verifiable set operations over outsourced databasets. R. Canetti, O. Paneth, D. Papadopoulos, N. Triandopoulos. PKC 2014 [PDF]

Patents

R. Canetti, D. Papadopoulos, N. Triandopoulos. Authenticated Hierarchical Set Operations and Applications, US Patent application, March 2013 (pending)

D. Papadopoulos, C. Papamanthou, R. Tamassia, E. Tremel, N. Triandopoulos. Authenticated Pattern-Matching and Exact Path Queries, US Patent application, March 2013 (pending)