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A physical zero-knowledge object-comparison system for nuclear warhead verification.

Sébastien Philippe1, Robert J Goldston2, Alexander Glaser1

  • 1Department of Mechanical and Aerospace Engineering, Princeton University, E-Quad, Olden Street, Princeton, New Jersey 08544, USA.

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|September 21, 2016
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Summary
This summary is machine-generated.

This study introduces a physical zero-knowledge proof using neutron radiography. It confirms object identity without revealing sensitive data, crucial for nuclear arms control verification.

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Area of Science:

  • Nuclear physics
  • Cryptography
  • Materials science

Background:

  • Zero-knowledge proofs (ZKPs) are cryptographic methods enabling validation without revealing underlying data.
  • Applications in nuclear arms control require verifying sensitive physical information securely.
  • Current methods may not adequately protect classified design details.

Purpose of the Study:

  • To demonstrate a physical zero-knowledge proof for comparing objects.
  • To develop a non-electronic method for verifying object identity.
  • To explore applications in secure verification for sensitive materials.

Main Methods:

  • Utilized fast neutron differential radiography.
  • Employed superheated emulsion detectors for non-electronic detection.
  • Designed a system to compare two objects without data leakage.

Main Results:

  • Successfully confirmed the identity of two objects.
  • The technique revealed no information about object geometry or composition.
  • Demonstrated a physical zero-knowledge proof for object comparison.

Conclusions:

  • The developed technique can verify object authenticity without disclosing sensitive information.
  • This method has potential for nuclear weapons verification systems.
  • Opens avenues for physical zero-knowledge proofs in diverse applications.