BIO

I am an Assistant Professor at the Department of Computer Science and a member of the Security of Advanced Systems research group at the University of Sheffield, UK. I am broadly interested in constructing cryptographic schemes in post-quantum and quantum settings and the intersections with other disciplines, e.g., zero-knowledge proofs, cryptocurrencies, and concurrent systems.

From Nov. 2020 to April 2023, I was a postdoctoral researcher in Cryptography at the Max Planck Institute for Security and Privacy (MPI-SP), Bochum, Germany, where I was working with Giulio Malavolta. Prior to joining MPI-SP, I was a senior researcher in Cryptography at the University of Tartu (from August to December 2020). I finished my Ph.D. at the University of Tartu on September 2020, under the supervision of Helger Lipmaa. In August and November 2019, I visited the AIT Austrian Institute of Technology, Vienna, Austria, hosted by Daniel Slamanig. 

Publications:

Preprints

• On Quantum Simulation-Soundness.
  Behzad Abdolmaleki, Céline Chevalier, Ehsan Ebrahimi, Giulio Malavolta, Quoc-Huy Vu.
  Cryptology ePrint Archive. [DOI] [URL]

Conferences & Journal

• Universally Composable NIZKs: Circuit-Succinct, Non-Malleable and CRS-Updatable.
  Behzad Abdolmaleki, Noemi Glaeser, Sebastian Ramacher, Daniel Slamanig.
  In IEEE CSF 2024. [DOI] [URL]

• Two-Round (Quantum) Concurrent 2PC from Sub-Exponential LWE.
  Behzad Abdolmaleki, Saikrishna Badrinarayanan, Rex Fernando, Giulio Malavolta, Ahmadreza Rahimi, Amit Sahai.
  In ASIACRYPT 2023. [DOI] [URL]

• stoRNA: Stateless Transparent Proofs of Storage-time
  Reyhaneh Rabaninejad, Behzad Abdolmaleki, Giulio Malavolta, Antonis Michalas, Amir Nabizadeh.
  In ESORICS 2023. [DOI] [URL]

• CRS-Updatable Asymmetric Quasi-Adaptive NIZK Arguments.
  Behzad Abdolmaleki, Daniel Slamanig.
  In INDOCRYPT 2022. [DOI] [URL]  

• Steganography-Free Zero-Knowledge.
  Behzad Abdolmaleki, Nils Fleischhacker, Vipul Goyal, Abhishek Jain, Giulio Malavolta.
  In TCC 2022. [DOI] [URL]

• Smooth Zero-Knowledge Hash Functions.
  Behzad Abdolmaleki, Hamidreza Khoshakhlagh, Helger Lipmaa.
  In INDOCRYPT 2021. [DOI] [URL]

• Subversion-Resistant Quasi-Adaptive NIZK and Applications to Modular zk-SNARKs.
  Behzad Abdolmaleki, Daniel Slamanig.
  In CANS 2021. [DOI] [URL]  (Best Paper Award)

• On Subversion-Resistant SNARKs .
  Behzad Abdolmaleki, Helger Lipmaa, Janno Siim, Michal Zajac.
  In Journal of Cryptology 2021. [DOI] [URL]

• Updatable Trapdoor SPHFs: Modular Construction of Updatable Zero-Knowledge Arguments and More.
  Behzad Abdolmaleki, Daniel Slamanig.
  In ACISP 2021. [DOI] [URL]

• On Succinct Non-Interactive Zero-Knowledge Protocols Under Weaker Trust Assumptions.
  Behzad Abdolmaleki.
  PhD thesis, September, 2020. [DOI] [URL]

• Lift-and-Shift: Obtaining Simulation Extractable Subversion and Updatable SNARKs Generically.
  Behzad Abdolmaleki, Sebastian Ramacher, Daniel Slamanig.
  In ACM CCS 2020. [DOI] [URL]

• On QA-NIZK in the BPK Model.
  Behzad Abdolmaleki, Helger Lipmaa, Janno Siim, Michał Zając.
  In PKC 2020. [DOI] [URL]

• SoK: Lifting Transformations for Simulation Extractable Subversion and Updatable SNARKs.
  Behzad Abdolmaleki, Sebastian Ramacher, Daniel Slamanig.
  In the 3rd ZKProof Workshop, 2020. [DOI] [URL]

• A Framework for UC-Secure Commitments from Publicly Computable Smooth Projective Hashing.
  Behzad Abdolmaleki, Hamidreza Khoshakhlagh, Daniel Slamanig.
  In IMA Cryptography and Coding 2019. [DOI] [URL]

• UC-Secure CRS Generation for SNARKs.
  Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Janno Siim, Michal Zajac.
  In AFRICACRYPT 2019. [DOI] [URL]

• DL-Extractable UC-Commitment Schemes.
  Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Janno Siim and Michal Zajac.
  In Applied Cryptography and Network Security (ACNS) 2019. [DOI] [URL]

• Breaking anonymity of some recent lightweight RFID authentication protocols.
  Karim Baghery, Behzad Abdolmaleki, Shahram Khazaei and Mohammad Reza Aref.
  In Journal of Wireless Networks, Springer 2018. [DOI] [URL]

• A Subversion-Resistant SNARK.
  Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa and Michał Zając.
  In ASIACRYPT 2017. [DOI] [URL]  (One of the three Best Papers).

• An AKARI-based Secure Communication Scheme for EPC Tags.
  Behzad Abdolmaleki and Karim Baghery.
  In RTUWO 2017. [DOI] [URL]

• Game-Based Privacy Analysis of RFID Security Schemes for Confident Authentication in IoT.
  Behzad Abdolmaleki, Karim Baghery, Shahram Khazaei and Mohammad Reza Aref.
  In Journal of Wireless Personal Communications, Springer 2017. [DOI] [URL]
  ...
  
  - See the Full List Of My Publications In My Google Scholar.

Academic Services:

I am serving/served as a PC member in the following conferences:

• 2024: ISDIA

• 2023: ASIACRYPT