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I am an assistant professor at Cyberspace Research Institute at Shahid Beheshti University, Iran, since 2015. My major research interest is  applied cryptography, focusing on cryptanalysis of symmetric key primitives and techniques to apply side-channel attacks on cryptographic algorithms.

I did my Ph.D. at Aalto University in Finland under the supervision of Prof. Kaisa Nyberg. My dissertation can be found here. My work was funded by the Helsinki Doctoral Programme in Computer Science – Advanced Computing and Intelligent Systems (HECSE) and partially by the European Commission through the ICT program ECRYPT II.

In summer 2016 and 2017, I was a postdoctoral researcher at Technical University of Denmark (DTU), as part of the Cyber Security group which I worked with Prof. Christian Rechberger.

Current Research

My major research interest is applied cryptography, focusing on cryptanalysis of symmetric key primitives and techniques to apply side-channel and fault attacks on cryptographic algorithms.

Ph.D. Research

My primary research goal during my Ph.D. study was to develop cryptanalysis methods for determining the exact security level of some inventive and unconventional designs for lightweight block ciphers.  My dissertation can be found here.

Postdoc Research

In my short postdocs, I evaluated the security of the novel block ciphers designed for specific applications like secure multi-party computation (MPC) or fully homomorphic encryption (FHE).


• May 2022: Honored to get the Online Teaching Award from SBU for developing online courses during the pandemic (Photo).
• May 2022: Our paper “Statistical Effective Fault Attacks: The other Side of the Coin” is accepted in IEEE Transactions on Information Forensics and Security. This is a joint work with Navid Vafaei, Sara Zarei, Maria Eichlseder, Robert Primas, and Nasour Bagheri. (Early Access Link).
• April 2022: Our paper “SIPFA: Statistical Ineffective Persistent Faults Analysis on Feistel Ciphers” is accepted in IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES). This is a joint work with Nasour Bagheri, Sadegh Sadeghi, Prasanna Ravi and Shivam Bhasin (ePrint version).
• February 2022: Fast Software Encryption 2023 Program Committee/ IACR Transactions in Symmetric Cryptology (ToSC) Editorial Board Member.
• February 2022: The slides (PowerPoint files) and videos of my courses “Cryptography” and “Advanced Cryptography” are now available. 
• October 2021:
Our paper entitled “Practical Multiple Persistent Faults Analysis” is accepted in IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES). This is a joint work with Nasour Bagheri and Hosein Hadipour and Prasanna Ravi and Shivam Bhasin and Sara Mansouri (ePrint version).
• September 2021: Our paper “A Generalized Framework for Accelerating Exhaustive Search Utilizing Deterministic Related-key Differential Characteristics” is accepted in Journal of Computer Virology and Hacking Techniques. This is a joint work with my colleague Farokhlagha Moazami.
• August 2021: Our paper “Enhanced cache attack on AES applicable on ARM-based devices with new operating systems” is accepted in Computer Networks. This is a joint work with Mahdi Esfahani and Mohammad Reza Aref (link).
• July 2021: Our paper entitled “Low-Latency Keccak at any Arbitrary Order” is accepted in IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES). This is a joint work with Sara Zarei, Aein Rezaei, Raziye Salarifard and Amir Moradi (ePrint version).
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