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Transfering Proofs of Zero-Knowledge Systems with Quantum Correlations

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3 Author(s)
P. Mateus ; SQIG-IT and IST, Portugal ; F. Moura ; J. Rasga

The use of quantum correlations to attack security protocols is an important research line deserving growing attention. An important class of cryptographic protocols used as building blocks for several other more complex protocols is zero-knowledge proof systems. One of the properties that zero-knowledge proof systems are assumed to satisfy is that it is impossible for the verifier to show to a third party that he has interacted with the prover (impossibility of transferring proofs). Herein, it is shown how Bell pairs, together with tamper-proofing, can be used to break the impossibility of transferring proofs for an important class of zero-knowledge proof systems.

Published in:

Quantum, Nano, and Micro Technologies, 2007. ICQNM '07. First International Conference on

Date of Conference:

2-6 Jan. 2007