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Matteo Maffei

Univ.Prof.

Research Areas

  • computer security, Crypto Currencies, Cryptography, Privacy, Security Protocols, Security, Network and Web Security, Cybersecurity
Matteo Maffei

About

Matteo Maffei joined TU Wien as full professor in 2017, after 11 years at Saarland University - CISPA. He obtained a Ph.D. in Computer Science at the Ca’ Foscari University of Venice in 2006.

He is

Matteo Maffei received an ERC Advanced Grant in 2024, an  ERC Consolidator Grant in 2018, and a DFG Emmy Noether Fellowship in 2009. He served as a panel member for the ERC Advanced Grant and for the SNF National Centers of Competence in Research. He participated in the PC of more than 50 conferences, in the steering committee of ETAPS, in the editorial board of the Journal of Computer Security, and is the steering committee chair of the IEEE Symposium on Computer Security Foundations (CSF).

His recent research interests focus on

  • formal method for security and privacy (e.g., in cryptographic protocols, web applications, and smart contracts);
  • web security;
  • design of secure, privacy-preserving, and interoperable blockchain technologies.

I regularly post announcements and news on X, BlueSky, and LinkedIn: if you are curious, follow me!

Roles

  • Head of Research Unit
    Security and Privacy, E192-06
  • Full Professor
    Security and Privacy, E192-06
  • Curriculum Coordinator
    Bachelor / Specialization / Cybersecurity
  • Curriculum Commission for Informatics
    Substitute Member

Contact

2024W

2025S

 

2024

  • Securing Lightning Channels against Rational Miners / Aumayr, L., Avarikioti, Z., Maffei, M., & Mazumdar, S. (2024). Securing Lightning Channels against Rational Miners. In B. Luo, X. Liao, & J. Xu (Eds.), Proceedings of the 2024 on ACM SIGSAC Conference on Computer and Communications Security (pp. 393–407). https://doi.org/10.1145/3658644.3670373
    Download: Paper (1.21 MB)
    Projects: Browsec (2018–2024) / CDL-BOT (2020–2025) / CoRaF (2022–2025) / DLDaI (2022–2024) / PR4DLT (2018–2021) / SCALE2 (2023–2027) / SFB SPyCoDe (2023–2026)
  • Distillation based Robustness Verification with PAC Guarantees / Indri, P., Blohm, P., Athavale, A., Bartocci, E., Weissenbacher, G., Maffei, M., Nickovic, D., Gärtner, T., & Malhotra, S. (2024). Distillation based Robustness Verification with PAC Guarantees. In International Conference on Machine Learning 2024 - Next Generation of AI Safety Workshop. International Conference on Machine Learning 2024 - Next Generation of AI Safety Workshop, Vienna, Austria. http://hdl.handle.net/20.500.12708/200890
  • Verifying Global Two-Safety Properties in Neural Networks with Confidence / Athavale, A., Bartocci, E., Christakis, M., Maffei, M., Ničković, D., & Weissenbacher, G. (2024). Verifying Global Two-Safety Properties in Neural Networks with Confidence. In A. Gurfinkel & V. Ganesh (Eds.), Computer Aided Verification (pp. 329–351). Springer. https://doi.org/10.1007/978-3-031-65630-9_17
    Projects: Browsec (2018–2024) / ForSmart (2023–2027) / ProbInG (2020–2025) / SFB SPyCoDe (2023–2026) / TAIGER (2023–2027)
  • Optimizing Virtual Payment Channel Establishment in the Face of On-Path Adversaries / Aumayr, L., Ceylan, E., Kopyciok, Y., Maffei, M., Moreno-Sanchez, P., Salem, I., & Schmid, S. (2024). Optimizing Virtual Payment Channel Establishment in the Face of On-Path Adversaries. In Proceedings 2024 IFIP Networking Conference (IFIP Networking) (pp. 1–10). https://doi.org/10.23919/IFIPNetworking62109.2024.10619889
    Projects: Browsec (2018–2024) / CDL-BOT (2020–2025) / CoRaF (2022–2025) / SFB SPyCoDe (2023–2026)
  • Wappler: Sound Reachability Analysis for WebAssembly / Scherer, M., Blaabjerg, J. F., Sjösten, A., Solitro, M. M., & Maffei, M. (2024). Wappler: Sound Reachability Analysis for WebAssembly. In L. O’Conner & P. Kellenberger (Eds.), 2024 IEEE 37th Computer Security Foundations Symposium (CSF) (pp. 249–264). https://doi.org/10.1109/CSF61375.2024.00025
    Projects: Browsec (2018–2024) / CDL-BOT (2020–2025) / ForSmart (2023–2027) / SFB SPyCoDe (2023–2026)
  • Web Platform Threats: Automated Detection of Web Security Issues With WPT / Bernardo, P., Veronese, L., DALLA VALLE, V., Calzavara, S., Squarcina, M., Adão, P., & Maffei, M. (2024). Web Platform Threats: Automated Detection of Web Security Issues With WPT. In Proceedings of the 33rd USENIX Security Symposium (pp. 757–774). http://hdl.handle.net/20.500.12708/204362
    Projects: Browsec (2018–2024) / SPFBT (2020–2026) / W4MP (2023–2027)
  • Message from General Chairs; EuroSP 2024 / Weippl, E., & Maffei, M. (2024). Message from General Chairs; EuroSP 2024. In 2024 IEEE European Symposium on Security and Privacy Workshops (EuroS&PW). 9th IEEE European Symposium on Security and Privacy Workshops (EUROS&PW 2024), Wien, Austria. https://doi.org/10.1109/EuroSPW61312.2024.00005
  • CryptoVampire: Automated Reasoning for the Complete Symbolic Attacker Cryptographic Model / Jeanteur, S., Kovács, L., Maffei, M., & Rawson, M. (2024). CryptoVampire: Automated Reasoning for the Complete Symbolic Attacker Cryptographic Model. In 2024 IEEE Symposium on Security and Privacy (SP) (pp. 3165–3183). IEEE. https://doi.org/10.1109/SP54263.2024.00246
    Projects: Browsec (2018–2024) / CDL-BOT (2020–2025) / DLDaI (2022–2024) / ForSmart (2023–2027) / SFB SPyCoDe (2023–2026) / SPFBT (2020–2026)

2023

2022

2021

  • Formal Methods for the Security Analysis of Smart Contracts / Maffei, M. (2021). Formal Methods for the Security Analysis of Smart Contracts. In Proceedings of the 21st Conference on Formal Methods in Computer-Aided Design – FMCAD 2021 (pp. 8–8). TU Wien Academic Press. https://doi.org/10.34727/2021/isbn.978-3-85448-046-4_3
    Download: PDF (47.5 KB)
  • Donner: UTXO-Based Virtual Channels Across Multiple Hops / Aumayr, L., Moreno-Sanchez, P., Kate, A., & Maffei, M. (2021, September 7). Donner: UTXO-Based Virtual Channels Across Multiple Hops [Presentation]. Bitcoin Sydney Socratic Seminar, Australia. http://hdl.handle.net/20.500.12708/152979
  • Blitz: Secure Multi-Hop Payments Without Two-Phase Commits / Aumayr, L., Moreno-Sanchez, P., Kate, A., & Maffei, M. (2021, May 26). Blitz: Secure Multi-Hop Payments Without Two-Phase Commits [Conference Presentation]. Theory and Practice of Blockchains, Unknown. http://hdl.handle.net/20.500.12708/153230
  • Blitz: Secure Multi-Hop Payments Without Two-Phase Commits / Aumayr, L., Moreno-Sanchez, P., Kate, A., & Maffei, M. (2021, April 27). Blitz: Secure Multi-Hop Payments Without Two-Phase Commits [Presentation]. Bitcoin Sydney Socratic Seminar, Australia. http://hdl.handle.net/20.500.12708/152982
  • Blitz: Secure Multi-Hop Payments Without Two-Phase Commits / Aumayr, L., Moreno-Sanchez, P., Kate, A., & Maffei, M. (2021, February 24). Blitz: Secure Multi-Hop Payments Without Two-Phase Commits [Presentation]. Decrypto Seminar, Unknown. http://hdl.handle.net/20.500.12708/152985
  • Generalized Channels from Limited Blockchain Scripts and Adaptor Signatures / Aumayr, L., Ersoy, O., Erwig, A., Faust, S., Hostáková, K., Maffei, M., Moreno-Sanchez, P., & Riahi, S. (2021). Generalized Channels from Limited Blockchain Scripts and Adaptor Signatures. In Advances in Cryptology – ASIACRYPT 2021 27th International Conference on the Theory and Application of Cryptology and Information Security, Singapore, December 6–10, 2021, Proceedings, Part II (pp. 635–664). Springer. https://doi.org/10.1007/978-3-030-92075-3_22
  • Cross-Layer Deanonymization Methods in the Lightning Protocol / Romiti, M., Victor, F., Moreno-Sanchez, P., Nordholt, P. S., Haslhofer, B., & Maffei, M. (2021). Cross-Layer Deanonymization Methods in the Lightning Protocol. In Financial Cryptography and Data Security 25th International Conference, FC 2021, Virtual Event, March 1–5, 2021, Revised Selected Papers, Part I. Springer Verlag, Austria. Springer LNCS. https://doi.org/10.1007/978-3-662-64322-8_9
  • Can I Take Your Subdomain? Exploring Same-Site Attacks in the Modern Web / Squarcina, M., Tempesta, M., Veronese, L., Calzavara, S., & Maffei, M. (2021). Can I Take Your Subdomain? Exploring Same-Site Attacks in the Modern Web. In 30th USENIX Security Symposium (pp. 2917–2934). 30th USENIX Security Symposium, USENIX Security 2021, August 11-13, 2021. http://hdl.handle.net/20.500.12708/58469
  • Post-Quantum Adaptor Signature for Privacy-Preserving Off-Chain Payments / Tairi, E., Moreno-Sanchez, P., & Maffei, M. (2021). Post-Quantum Adaptor Signature for Privacy-Preserving Off-Chain Payments. In Financial Cryptography and Data Security (pp. 131–150). https://doi.org/10.1007/978-3-662-64331-0_7
  • A<sup>2</sup>L: Anonymous Atomic Locks for Scalability in Payment Channel Hubs / Tairi, E., Moreno-Sanchez, P., & Maffei, M. (2021). A2L: Anonymous Atomic Locks for Scalability in Payment Channel Hubs. In 2021 IEEE Symposium on Security and Privacy (SP). IEEE Symposium on Security and Privacy 2021, United States of America (the). https://doi.org/10.1109/sp40001.2021.00111
  • The Remote on the Local: Exacerbating Web Attacks Via Service Workers Caches / Squarcina, M., Calzavara, S., & Maffei, M. (2021). The Remote on the Local: Exacerbating Web Attacks Via Service Workers Caches. In 2021 IEEE Security and Privacy Workshops (SPW). 15th IEEE Workshop on Offensive Technologies, San Francisco, CA, United States of America (the). https://doi.org/10.1109/spw53761.2021.00062
  • Blitz: Secure Multi-Hop Payments Without Two-Phase Commits / Aumayr, L., Moreno-Sanchez, P., Kate, A., & Maffei, M. (2021). Blitz: Secure Multi-Hop Payments Without Two-Phase Commits. In 30th USENIX Security Symposium (pp. 4043–4060). USENIX: The Advanced Computing Systems Association. http://hdl.handle.net/20.500.12708/55607
  • Bitcoin-Compatible Virtual Channels / Aumayr, L., Ersoy, O., Erwig, A., Faust, S., Hostáková, K., Maffei, M., Moreno-Sanchez, P., & Riahi, S. (2021). Bitcoin-Compatible Virtual Channels. In 2021 IEEE Symposium on Security and Privacy (SP). IEEE Symposium on Security and Privacy 2021, Oakland, United States of America (the). IEEE Computer Society. https://doi.org/10.1109/sp40001.2021.00097

2020

  • eThor: Practical and Provably Sound Static Analysis of Ethereum Smart Contracts / Schneidewind, C., Grishchenko, I., Scherer, M., & Maffei, M. (2020). eThor: Practical and Provably Sound Static Analysis of Ethereum Smart Contracts. In Proceedings of the 2020 ACM SIGSAC Conference on Computer and Communications Security. ACM Conference on Computer and Communications Security (CCS), Washington, United States of America (the). Association for Computing Machinery ACM. https://doi.org/10.1145/3372297.3417250
  • Language-Based Web Session Integrity / Calzavara, S., Focardi, R., Grimm, N., Maffei, M., & Tempesta, M. (2020). Language-Based Web Session Integrity. In 2020 IEEE 33rd Computer Security Foundations Symposium (CSF). IEEE 33rd Computer Security Foundations Symposium (CSF), Santa Barbara, United States of America (the). IEEE Computer Society. https://doi.org/10.1109/csf49147.2020.00016
  • The Good, The Bad and The Ugly: Pitfalls and Best Practices in Automated Sound Static Analysis of Ethereum Smart Contracts / Schneidewind, C., Scherer, M., & Maffei, M. (2020). The Good, The Bad and The Ugly: Pitfalls and Best Practices in Automated Sound Static Analysis of Ethereum Smart Contracts. In T. Margaria & B. Steffen (Eds.), Leveraging Applications of Formal Methods, Verification and Validation: Applications. ISoLA 2020, Proceedings, Part III (pp. 212–231). Springer. https://doi.org/10.1007/978-3-030-61467-6_14
  • Generalized Bitcoin-Compatible Channels / Aumayr, L., Ersoy, O., Erwig, A., Faust, S., Hostáková, K., Maffei, M., Moreno-Sanchez, P., & Riahi, S. (2020). Generalized Bitcoin-Compatible Channels. Cryptology ePrint Archive. http://hdl.handle.net/20.500.12708/40215
  • The Remote on the Local: Exacerbating Web Attacks Via Service Workers Caches in Progressive Web Applications / Somé, D. F., Squarcina, M., Calzavara, S., & Maffei, M. (2020). The Remote on the Local: Exacerbating Web Attacks Via Service Workers Caches in Progressive Web Applications. EuroS&P 2020 SecWeb Workshop, Genova, Italy. http://hdl.handle.net/20.500.12708/87080
  • A Quantitative Analysis of Security, Anonymity and Scalability for the Lightning Network / Tikhomirov, S., Moreno-Sanchez, P., & Maffei, M. (2020). A Quantitative Analysis of Security, Anonymity and Scalability for the Lightning Network. In 2020 IEEE European Symposium on Security and Privacy Workshops (EuroS&PW). IEEE Security & Privacy On The Blockchain, Genova, Italy. IEEE. https://doi.org/10.1109/eurospw51379.2020.00059

2019

2018

  • Functional Credentials / Deuber, D., Maffei, M., Malavolta, G., Rabkin, M., Schröder, D., & Simkin, M. (2018). Functional Credentials. In Proceedings on Privacy Enhancing Technologies (pp. 64–84). Walter de Gruyter GmbH. http://hdl.handle.net/20.500.12708/57361
  • Simple Password Hardened Encryption Services / Maffei, M., Reinert, M., Lai, R., Egger, C., Chow, S. S. M., & Schröder, D. (2018). Simple Password Hardened Encryption Services. In Proceedings of the 27th USENIX Security Symposium (pp. 1405–1421). USENIX. http://hdl.handle.net/20.500.12708/57492
  • Subset Predicate Encryption and Its Applications / Katz, J., Maffei, M., Malavolta, G., & Schröder, D. (2018). Subset Predicate Encryption and Its Applications. In Cryptology and Network Security (pp. 115–134). Springer International Publishing. https://doi.org/10.1007/978-3-030-02641-7_6
  • A Semantic Framework for the Security Analysis of Ethereum Smart Contracts / Grishchenko, I., Schneidewind, C., & Maffei, M. (2018). A Semantic Framework for the Security Analysis of Ethereum Smart Contracts. In Principles of Security and Trust 7th International Conference, POST 2018, Held as Part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2018, Thessaloniki, Greece, April 14-20, 2018, Proceedings (pp. 243–269). Springer Open. https://doi.org/10.1007/978-3-319-89722-6_10
  • Equivalence Properties by Typing in Cryptographic Branching Protocols / Cortier, V., Grimm, N., Lallemand, J., & Maffei, M. (2018). Equivalence Properties by Typing in Cryptographic Branching Protocols. In L. Bauer & R. Küsters (Eds.), Principles of Security and Trust (pp. 160–187). Springer LNCS. https://doi.org/10.1007/978-3-319-89722-6_7
  • UniTraX: Protecting Data Privacy with Discoverable Biases / Munz, R., Eigner, F., Maffei, M., Francis, P., & Garg, D. (2018). UniTraX: Protecting Data Privacy with Discoverable Biases. In L. Bauer & R. Küsters (Eds.), Principles of Security and Trust (pp. 278–299). Springer, Lecture Notes in Computer Science. https://doi.org/10.1007/978-3-319-89722-6_12
  • Foundations and Tools for the Static Analysis of Ethereum Smart Contracts / Gishchenko, I., Maffei, M., & Schneidewind, C. (2018). Foundations and Tools for the Static Analysis of Ethereum Smart Contracts. In G. Weissenbacher & H. Chockler (Eds.), Computer Aided Verification (pp. 51–78). Springer Open. https://doi.org/10.1007/978-3-319-96145-3_4
  • WPSE: Fortifying Web Protocols via Browser-Side Security Monitoring / Calzavara, S., Maffei, M., Schneidewind, C., Tempesta, M., & Squarcina, M. (2018). WPSE: Fortifying Web Protocols via Browser-Side Security Monitoring. In Proceedings of the 27th USENIX Security Symposium (pp. 1493–1510). USENIX. http://hdl.handle.net/20.500.12708/57493
  • A monadic framework for relational verification: applied to information security, program equivalence, and optimizations / Grimm, N., Maillard, K., Fournet, C., Hritcu, C., Maffei, M., Protzenko, J., Ramananandro, T., Swamy, N., & Zanella-Béguelin, S. (2018). A monadic framework for relational verification: applied to information security, program equivalence, and optimizations. In Proceedings of the 7th ACM SIGPLAN International Conference on Certified Programs and Proofs. ACM Digital Library. https://doi.org/10.1145/3167090

2017

  • Principles of Security and Trust / Maffei, M., & Ryan, M. (Eds.). (2017). Principles of Security and Trust (Vol. 10204). Springer-Verlag. https://doi.org/10.1007/978-3-662-54455-6
  • On the Security of Frequency-Hiding Order-Preserving Encryption / Reinert, M., Schröder, D., & Maffei, M. (2017). On the Security of Frequency-Hiding Order-Preserving Encryption. In Cryptology and Network Security (pp. 51–70). Springer International Publishing. https://doi.org/10.1007/978-3-030-02641-7_3
  • Maliciously Secure Multi-Client ORAM / Maffei, M., Malavolta, G., Reinert, M., & Schröder, D. (2017). Maliciously Secure Multi-Client ORAM. In D. Gollmann, A. Miyaji, & H. Kikuchi (Eds.), Applied Cryptography and Network Security (pp. 645–664). © Springer International Publishing AG 2017. https://doi.org/10.1007/978-3-319-61204-1_32
  • A Sound Flow-Sensitive Heap Abstraction for the Static Analysis of Android Applications / Maffei, M., Calzavara, S., Grishchenko, I., & Koutsos, A. (2017). A Sound Flow-Sensitive Heap Abstraction for the Static Analysis of Android Applications. In 2017 IEEE 30th Computer Security Foundations Symposium (CSF). IEEE Computer Security Foundations Symposium, Santa Barbara, USA, Non-EU. IEEE Xplore Digital Library. https://doi.org/10.1109/csf.2017.19
  • Concurrency and Privacy with Payment-Channel Networks / Maffei, M., Kate, A., Malavolta, G., Moreno-Sanchez, P., & Ravi, S. (2017). Concurrency and Privacy with Payment-Channel Networks. In Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security. ACM Digital Library. https://doi.org/10.1145/3133956.3134096
  • SilentWhispers: Enforcing Security and Privacy in Decentralized Credit Networks / Maffei, M., Moreno-Sanchez, P., Kate, A., & Malavolta, G. (2017). SilentWhispers: Enforcing Security and Privacy in Decentralized Credit Networks. In Proceedings 2017 Network and Distributed System Security Symposium. Internet Society. https://doi.org/10.14722/ndss.2017.23448
  • A Type System for Privacy Properties / Maffei, M., Lallemand, J., Cortier, V., & Grimm, N. (2017). A Type System for Privacy Properties. In Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security. ACM CCS 2017 Conference on Computer and Communications Security, Dallas, USA, Non-EU. ACM Digital Library. https://doi.org/10.1145/3133956.3133998