Guest talk: Giulio Malavolta "Can we obfuscate quantum circuits?"

Assistant Professor Giulio Malavolta from Max Planck Institute for Security and Privacy (MPI-SP) will give a guest talk at the Department of Computer Science.
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Can we obfuscate quantum circuits?

Giulio Malavolta
Max Planck Institute for Security and Privacy (MPI-SP)

Abstract: In this talk we investigate the following questions: Can we obfuscate quantum circuits? We discuss definitions, opportunities and barriers towards achieving this new “holy grail” of quantum cryptography. We present a construction for null quantum circuits (i.e., quantum circuits that always reject) assuming:

  • The quantum hardness of learning with errors (LWE).
  • Post-quantum indistinguishability obfuscation for classical circuits.
  • A notion of ''dual-mode'' classical verification of quantum. computation (CVQC).

Then we show how quantum null-iO enables a series of new cryptographic primitives that were not know to exist prior to our work. If time permits, we will also survey the state of the art in post-quantum obfuscation for classical circuits.

Based on a joint work with James Bartusek (presented at QIP’22 and ITCS’22)


Bio: I am tenure-track faculty (= Assistant Professor) at the Max Planck Institute for Security and Privacy (MPI-SP) where I am the head of the Cryptographic Systems group. My research focuses on mathematical aspects of asymmetric cryptography. I am also broadly interested in the intersections with other disciplines, e.g., computer security, cryptocurrencies, concurrent systems, formal methods, game theory, and quantum computing.

Prior to joining MPI-SP, I was a PostDoc with a joint appointment at UC Berkeley (working with Sanjam Garg) and at Carnegie Mellon University (working with Vipul Goyal). In fall 2019 I was a research fellow at the Simons Institute for the Theory of Computing. I completed my Ph.D. in June 2019 at Friedrich-Alexander University under the supervision of  Dominique Schröder.

This guest talk is hosted by Assistant Professor Russell W. F. Lai, Department of Computer Science.

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