People

Faculty

Antonios Michalas

Associate Professor
Cyber security
Faculty of Information Technology and Communication Sciences
Tampere University
+358504478399
antonios.michalas@tuni.fi

About me

I received my PhD in Provable Security and Privacy from Aalborg University, Denmark and I currently work as an Associate Professor at the Department of Computing Sciences where I also lead the Network and Information Security group (NISEC). The group comprises PhD students, professors a nd researchers. Group members conduct research in areas spanning from the theoretical foundations of cryptography to the design and implementation of leading-edge efficient and secure communication protocols. Apart from my research work at NISEC, as an associate professor, I am actively involved in the teaching activities of the University. Finally, my role expands to student supervision and research project coordination.

You can find more information on my profile and my latest activities at www.amichalas.com

Field of expertise

Applied Cryptography;
Operations on Encrypted Data;
Privacy Enhancing Technologies;
Privacy-Preserving Machine Learning;
and...anything that looks interesting!

Latest publications

Challenges and Solutions in Internet of Things-Based Smart Applications

Shekokar, N. M., Shinde, S. K., Ambarkar, S. S., Michalas, A., Mangla, M. & Thomas, A., tammik. 2025, Chapman and Hall/CRC. 186 Sivumäärä

Tutkimustuotos: Kokoomateos › Tieteellinen › vertaisarvioitu

A More Secure Split: Enhancing the Security of Privacy-Preserving Split Learning

Khan, T., Nguyen, K. & Michalas, A., 2024, Secure IT Systems: 28th Nordic Conference, NordSec 2023, Oslo, Norway, November 16–17, 2023, Proceedings. Fritsch, L., Hassan, I. & Paintsil, E. (toim.). Cham: Springer, s. 307-329 23 Sivumäärä (Lecture Notes in Computer Science; Vuosikerta 14324).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

A Pervasive, Efficient and Private Future: Realizing Privacy-Preserving Machine Learning Through Hybrid Homomorphic Encryption

Nguyen, K., Budzys, M., Frimpong, E., Khan, T. & Michalas, A., 5 marrask. 2024, 2024 IEEE Conference on Dependable, Autonomic and Secure Computing (DASC). IEEE, s. 47-56 10 Sivumäärä (IEEE International Conference on Dependable, Autonomic and Secure Computing).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

FE[r]Chain: Enforcing Fairness in Blockchain Data Exchanges Through Verifiable Functional Encryption

Nuoskala, C., Rabbaninejad, R., Dimitriou, T. & Michalas, A., kesäk. 2024, Proceedings of the 29th ACM Symposium on Access Control Models and Technologies (SACMAT 2024). ACM, s. 183-191 9 Sivumäärä

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

GuardML: Efficient Privacy-Preserving Machine Learning Services Through Hybrid Homomorphic Encryption

Frimpong, E., Nguyen, K., Budzys, M., Khan, T. & Michalas, A., 2024, Proceedings of the 39th ACM/SIGAPP Symposium on Applied Computing (SAC '24). ACM, s. 953-962 10 Sivumäärä

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Learning in the Dark: Privacy-Preserving Machine Learning using Function Approximation

Khan, T. & Michalas, A., 2024, Proceedings - 2023 IEEE 22nd International Conference on Trust, Security and Privacy in Computing and Communications, TrustCom/BigDataSE/CSE/EUC/iSCI 2023. Hu, J., Min, G. & Wang, G. (toim.). IEEE, s. 62-71 10 Sivumäärä (IEEE International Conference on Trust, Security and Privacy in Computing and Communications).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Make Split, not Hijack: Preventing Feature-Space Hijacking Attacks in Split Learning

Khan, T., Budzys, M. & Michalas, A., 24 kesäk. 2024, Proceedings of the 29th ACM Symposium on Access Control Models and Technologies (SACMAT 2024). ACM, s. 19-30 12 Sivumäärä

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Need for Speed: Leveraging the Power of Functional Encryption for Resource-Constrained Devices

Frimpong, E., Bakas, A., Foucault, C. & Michalas, A., 2024, Proceedings of the 9th International Conference on Internet of Things, Big Data and Security, IoTBDS 2024. Kobusinska, A., Jacobsson, A. & Chang, V. (toim.). Science and Technology Publications (SciTePress), s. 62-74 13 Sivumäärä (International Conference on Internet of Things, Big Data and Security, IoTBDS - Proceedings).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Point Intervention: Improving ACVP Test Vector Generation Through Human Assisted Fuzzing

Gridin, I. & Michalas, A., 2024, Information and Communications Security : 26th International Conference, ICICS 2024, Mytilene, Greece, August 26–28, 2024, Proceedings, Part II. s. 43-62 20 Sivumäärä (Lecture Notes in Computer Science; Vuosikerta 15057).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Secrets in Motion: Privacy-Preserving Video Classification with Built-In Access Control

Frimpong, E., Khan, T. & Michalas, A., 2024, 2024 9th International Conference on Smart and Sustainable Technologies, SpliTech 2024. Solic, P., Nizetic, S., Rodrigues, J. J. P. C., Gonzalez-de-Artaza, D.L.-D.-I., Perkovic, T., Catarinucci, L. & Patrono, L. (toim.). IEEE

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Alejandro Cabrera Aldaya

Assistant Professor
information security
Faculty of Information Technology and Communication Sciences
Tampere University
+358505322412
alejandro.cabreraaldaya@tuni.fi

https://orcid.org/0000-0002-1544-6772

More information

Research unit

NISEC

Research fields

Information Security, Cryptography, Side-channel Attacks

Own links

Google Scholar

Marko Helenius

University Instructor
Faculty of Information Technology and Communication Sciences
Tampere University
+358408490758
marko.helenius@tuni.fi

https://orcid.org/0000-0002-3218-0320

Markku-Juhani Saarinen

Professor of Practice
Faculty of Information Technology and Communication Sciences
Tampere University
+358504387655
markku-juhani.saarinen@tuni.fi

https://orcid.org/0000-0002-2555-235X

More information

About me

I started as a cryptographer at SSH Communications Security in 1997 and I am still on that path. I have also worked in more general technical information security consulting and security assessment roles. I did my Ph.D. in the United Kingdom (ISG, Royal Holloway, University of London in 2009).

Responsibilities

In addition to regular academic tasks (research activities, teaching, supervision of theses, subject matter expert roles), a Professor of Practice in Information Security helps the university and its students to meet the evolving requirements of industry, businesses, and the state and acts as a technical contact person in research projects and teaching curriculum development.

I hold the Title of Docent in Cryptography and Information Security at Tampere University, and therefore I can act as the primary supervisor of PhD students in my field.

Field of expertise

My core competencies are in applied cryptography, cryptographic engineering, and security assessments (including cryptanalysis.)

Latest publications

Accelerating SLH-DSA by Two Orders of Magnitude with a Single Hash Unit

Saarinen, M.-J. O., 16 elok. 2024, Advances in Cryptology – CRYPTO 2024: 44th Annual International Cryptology Conference, Santa Barbara, CA, USA, August 18–22, 2024, Proceedings, Part I. Springer, s. 276-304 29 Sivumäärä (Lecture Notes in Computer Science; Vuosikerta 14920).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Mask Compression: High-Order Masking on Memory-Constrained Devices

Saarinen, M.-J. O. & Rossi, M., 2024, Selected Areas in Cryptography – SAC 2023. Springer, s. 65-81 17 Sivumäärä (Lecture Notes in Computer Science; Vuosikerta 14201).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Post-Quantum Cryptography: 15th International Workshop, PQCrypto 2024, Oxford, UK, June 12–14, 2024, Proceedings, Part I & Part II

Saarinen, M.-J. (Toimittaja) & Smith-Tone, D. (Toimittaja), 2024, Springer. (Lecture Notes in Computer Science; Vuosikerta 14771)

Tutkimustuotos: Kokoomateos › Tieteellinen › vertaisarvioitu

Threshold Raccoon: Practical Threshold Signatures from Standard Lattice Assumptions.

Pino, R. D., Katsumata, S., Maller, M., Mouhartem, F., Prest, T. & Saarinen, M.-J. O., 2024, Annual International Conference on the Theory and Applications of Cryptographic Techniques: EUROCRYPT. Springer, s. 219-248 30 Sivumäärä ( Lecture Notes in Computer Science; Vuosikerta 14651).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

High-Order Masking of Lattice Signatures in Quasilinear Time

Pino, R. D., Prest, T., Rossi, M. & Saarinen, M.-J. O., 2023, 2023 IEEE Symposium on Security and Privacy (SP). IEEE, s. 1168-1185 18 Sivumäärä (Proceedings of the IEEE Symposium on Security and Privacy).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

WrapQ: Side-Channel Secure Key Management for Post-quantum Cryptography

Saarinen, M. J. O., 2023, Post-Quantum Cryptography - 14th International Workshop, PQCrypto 2023, Proceedings. Johansson, T., Smith-Tone, D. & Smith-Tone, D. (toim.). Springer, s. 637-657 21 Sivumäärä (Lecture Notes in Computer Science; Vuosikerta 14154 LNCS).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Development of the RISC-V entropy source interface

Saarinen, M.-J. O., Newell, G. R. & Marshall, B., 2022, julkaisussa: JOURNAL OF CRYPTOGRAPHIC ENGINEERING. 12, 4, s. 371-386 16 Sivumäärä, 4.

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

SP 800-22 and GM/T 0005-2012 Tests: Clearly Obsolete, Possibly Harmful

Saarinen, M. J. O., 2022, Proceedings - 7th IEEE European Symposium on Security and Privacy Workshops, Euro S and PW 2022. IEEE, s. 31-37 7 Sivumäärä (Proceedings - 7th IEEE European Symposium on Security and Privacy Workshops, Euro S and PW 2022).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

WiP: Applicability of ISO Standard Side-Channel Leakage Tests to NIST Post-Quantum Cryptography

Saarinen, M. J. O., 2022, Proceedings of the 2022 IEEE International Symposium on Hardware Oriented Security and Trust, HOST 2022. IEEE, s. 69-72 4 Sivumäärä (Proceedings of the 2022 IEEE International Symposium on Hardware Oriented Security and Trust, HOST 2022).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

On Entropy and Bit Patterns of Ring Oscillator Jitter

Saarinen, M. J. O., 2021, Proceedings of the 2021 Asian Hardware Oriented Security and Trust Symposium, AsianHOST 2021. IEEE, 6 Sivumäärä (Proceedings of the 2021 Asian Hardware Oriented Security and Trust Symposium, AsianHOST 2021).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Jukka Koskinen

University Lecturer
Faculty of Information Technology and Communication Sciences
Tampere University
jukka.koskinen@tuni.fi

Postdoctoral Students

Reyhaneh Rabbaninejad

Postdoctoral Research Fellow
Faculty of Information Technology and Communication Sciences
Tampere University
+358504787618
reyhaneh.rabbaninejad@tuni.fi

https://orcid.org/0000-0002-4907-2844

More information

About me

Cryptography-Network Security expert with background in electrical engineering. Interested research areas are blockchain applications and challenges, also security issues in Internet of Things, smart cities and cloud.

Research fields

Blockchain, Applied Cryptography, Network Security, Cloud Security

Juha Nurmi

Postdoctoral Research Fellow
Faculty of Information Technology and Communication Sciences
Tampere University
juha.nurmi@tuni.fi

https://orcid.org/0000-0003-3071-9027

Postgraduate Students

Mindaugas Budzys

Doctoral Researcher
Faculty of Information Technology and Communication Sciences
Tampere University
+358504411383
mindaugas.budzys@tuni.fi

https://orcid.org/0000-0002-1913-7985

More information

Research unit

NISEC

Research fields

Machine Learning, Privacy-Preserving Machine Learning, Applied Cryptography

Tanveer Khan

Doctoral Researcher
Faculty of Information Technology and Communication Sciences
Tampere University
+358505969006
tanveer.khan@tuni.fi

https://orcid.org/0000-0001-7296-2178

More information

Research unit

NISEC

Research fields

Machine Learning, Privacy-Preserving Machine Learning, Distributed Deep Learning Techniques

Arttu Paju

Doctoral Researcher
Faculty of Information Technology and Communication Sciences
Tampere University
arttu.paju@tuni.fi

https://orcid.org/0000-0002-1398-2184

Tiina Schafeitel-Tähtinen

Doctoral Researcher
Faculty of Information Technology and Communication Sciences
Tampere University
+358504769950
tiina.schafeitel-tahtinen@tuni.fi

https://orcid.org/0000-0002-1286-8427

More information

Field of expertise

Usable Security, IoT Privacy and Security, Cybersecurity Education

Research unit

Network and Information Security Group (NISEC)

Camille Nuoskala

Doctoral Researcher
Faculty of Information Technology and Communication Sciences
Tampere University
+358504715362
camille.nuoskala@tuni.fi

https://orcid.org/0009-0001-6741-887X

More information

Research topics

Operations on Encrypted Data (Functional Encryption, Homomorphic Encryption, Hybrid Homomorphic Encryption) and Post-Quantum Cryptography.

Research unit

NISEC

Nicola Tuveri

Doctoral Researcher
Faculty of Information Technology and Communication Sciences
Tampere University
+358504777303
nicola.tuveri@tuni.fi

https://orcid.org/0000-0001-5172-4568

More information

About me

I received my M.Sc. Degree in Computer Science from Politecnico di Torino in 2011. During my studies I had the great opportunity of participating in the Erasmus Programme, being hosted in Espoo by Aalto University (at the time it was transitioning from TKK/HUT to Aalto University). There I had a chance to work under the supervision of Billy Bob Brumley and Kaisa Nyberg, working on Software Side-Channel Attacks on Cryptographic Implementations, which later evolved in my current Doctoral Research Project.

Research topics

Applied Cryptography, Software Side Channel Analysis, OpenSSL, NSS, Post-quantum cryptography deployment

Research unit

Network and Information Security (NISEC) Group

Project links

QUBIP
SPIRS

Main positions of trust

Own links

NISEC

Latest publications

OpenSSLNTRU: Faster post-quantum TLS key exchange

Bernstein, D. J., Brumley, B. B., Chen, M.-S. & Tuveri, N., 10 elok. 2022, 31st USENIX Security Symposium (USENIX Security '22) : Conference proceedings. The USENIX Association, s. 845-862

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Secure IT Systems: 26th Nordic Conference, NordSec 2021, Virtual Event, November 29–30, 2021, Proceedings

Tuveri, N. (Toimittaja), Michalas, A. (Toimittaja) & Brumley, B. B. (Toimittaja), 2021, Cham: Springer. 213 Sivumäärä (Lecture Notes in Computer Science; Vuosikerta 13115)

Tutkimustuotos: Kokoomateos › Tieteellinen › vertaisarvioitu

Certified Side Channels

Pereida García, C., Hassan, S. U., Tuveri, N., Gridin, I., Cabrera Aldaya, A. & Brumley, B. B., 2020, 29th USENIX Security Symposium, USENIX Security 2020. USENIX : THE ADVANCED COMPUTING SYSTEMS ASSOCIATION, s. 2021-2038 18 Sivumäärä

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Batch Binary Weierstrass

Brumley, B. B., Hassan, S. U., Shaindlin, A., Tuveri, N. & Vuojärvi, K., 2 lokak. 2019, Progress in Cryptology - LATINCRYPT 2019 - 6th International Conference on Cryptology and Information Security in Latin America, Santiago de Chile, Chile, October 2-4, 2019, Proceedings. Schwabe, P. & Thériault, N. (toim.). Springer Verlag, s. 364-384 21 Sivumäärä (Lecture Notes in Computer Science; Vuosikerta 11774).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Port Contention for Fun and Profit

Cabrera Aldaya, A., Brumley, B. B., ul Hassan, S., Pereida García, C. & Tuveri, N., 20 toukok. 2019, 2019 IEEE Symposium on Security and Privacy (SP) (2019). San Francisco, CA, US: IEEE, s. 1037-1054 18 Sivumäärä

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Start your ENGINEs: Dynamically Loadable Contemporary Crypto

Tuveri, N. & Brumley, B., syysk. 2019, 2019 IEEE Cybersecurity Development (SecDev). IEEE COMPUTER SOCIETY PRESS

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Triggerflow: Regression Testing by Advanced Execution Path Inspection

Gridin, I., Pereida García, C., Tuveri, N. & Brumley, B. B., 2019, Detection of Intrusions and Malware, and Vulnerability Assessment - 16th International Conference, DIMVA 2019, Proceedings. Maurice, C., Giacinto, G., Perdisci, R., Almgren, M. & Perdisci, R. (toim.). Springer Verlag, s. 330-350 21 Sivumäärä (Lecture Notes in Computer Science; Vuosikerta 11543).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Side-Channel Analysis of SM2: A Late-Stage Featurization Case Study

Tuveri, N., ul Hassan, S., Pereida Garcia, C. & Brumley, B., 3 jouluk. 2018, ACSAC '18 Proceedings of the 34th Annual Computer Security Applications Conference. New York: ACM, s. 147-160 14 Sivumäärä

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Cache-Timing Attacks and Shared Contexts

Brumley, B. B. & Tuveri, N., helmik. 2011, s. 233-242. 10 Sivumäärä.

Tutkimustuotos: Abstrakti › Tieteellinen

Remote timing attacks are still practical

Brumley, B. & Tuveri, N., 2011, Computer Security, ESORICS 2011 - 16th European Symposium on Research in Computer Security, Proceedings. Vuosikerta 6879 LNCS. s. 355-371 17 Sivumäärä (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vuosikerta 6879 LNCS).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Graduate Students

Nouman Khan

Research Assistant
Faculty of Information Technology and Communication Sciences
Tampere University
noumanali.khan@tuni.fi