2015-09-11_181818008_90227_iOS About me

I am a cryptographer and security researcher with a focus on Fully Homomorphic Encryption, Post-Quantum Cryptography, Blockchains, and design of Cryptographic Hardware/Software Accelerators.


  • I am a Teaching Assistant Professor in Electrical and Computer Engineering Department at Worcester Polytechnic Institute. I am working on creating new Post-Quantum schemes that are efficient for blockchains. Recently, I am also looking into side-channel attacks on TLS libraries.
  • I co-Founded QuantumSafe which focused on implementation of Post-Quantum Cryptography to Blockchains (January 2019 – June 2021).
  • Prior to that, I was a Research Scientist in Computer Science at New Jersey Institute of Technology working with Assoc. Prof. Kurt Rohloff (June 2017 – August 2018).
  • I hold my Ph.D. in Electrical and Computer Engineering from Worcester Polytechnic Institute (January 2012 – June 2017). I was part of the Vernam Research Group and working with Prof. Berk Sunar on acceleration of Fully Homomorphic Encryption (FHE) schemes and applications.

Research interests:

  • Blockchains and Cryptocurrencies
  • Post-Quantum Cryptography
  • Fully Homomorphic Encryption Schemes and Applications
  • Complex hardware designs/implementations of Cryptographic schemes
  • Accelerating Cryptographic applications using hardware/software co-designs
  • Efficient hardware implementations of very-large integer and polynomial arithmetic

Selected Publications

  • MMSAT: A Scheme for Multimessage Multiuser Signature Aggregation
    by Yarkın Doröz, Jeffrey Hoffstein, Joseph H. Silverman, Berk Sunar
    Cryptography ePrint Archive. (BIB) (PDF)
  • Fully Homomorphic Encryption from the Finite Field Isomorphism Problem
    by Yarkın Doröz, Jeffrey Hoffstein, Jill Pipher, Joseph H. Silverman, Berk Sunar, William Whyte, Zhenfei Zhang
    Cryptography ePrint Archive. (BIB) (PDF)
  • Implementation and Evaluation of a Lattice-Based Key-Policy ABE Scheme
    by Wei Dai, Yarkın Doröz, Yuriy Polyakov, Kurt Rohloff, Hadi Sajjadpour, Erkay Savaş, Berk Sunar
    Cryptography ePrint Archive. (BIB) (PDF)
  • Flattening NTRU for Evaluation Key Free Homomorphic Encryption
    by Yarkın Doröz, Berk Sunar
    Cryptography ePrint Archive. (BIB) (PDF)
  • A Custom Accelerator for Homomorphic Encryption Applications
    by Erdinç Öztürk, Yarkın Doröz, Berk Sunar, Erkay Savaş
    IEEE Transactions on Computers, 2016. (BIB) (PDF)
  • Homomorphic AES Evaluation Using the Modified LTV Scheme
    by Yarkın Doröz, Yin Hu and Berk Sunar
    Design, Codes and Cryptography – DCC, 2014. (BIB) (Springer) (PDF)
  • Accelerating Fully Homomorphic Encryption in Hardware
    by Yarkın Doröz, Erdinç Öztürk and Berk Sunar
    IEEE Transactions on Computers, 2013. (BIB) (IEEE) (PDF)
  • A Million-bit Multiplier Architecture for Fully Homomorphic Encryption
    by Yarkın Doröz, Erdinç Öztürk and Berk Sunar
    Microprocessors and Microsystems, 2014. (BIB) (MICRO) (PDF)


  • Intel Corporation, May 2015 – July 2015
    The focus of the internship is to design a hardware architecture to accelerate certain algorithms. The architecture is developed as a co-processor to be used by the Intel CPUs.
  • The Scientific and Technological Research Council of Turkey, June – August 2008
    Worked on a distance meter project that measures distance using acoustic waves.


I received my BSc. degree in Electronics Engineering in 2009 and my MSc. degree in Computer Science in 2011 from Sabanci University. My focus in cryptography started with my MSc. degree. I worked on acceleration of elliptic curves using Cell-Blade processors (Playstation 3 processors). Also, I designed an FPGA cluster system that is controlled by a PC to be used in acceleration of cryptographic applications i.e. cryptanalysis, cryptographic attacks and etc.