Paper 2020/798

Superposition Attack on OT Protocols

Ehsan Ebrahimi, Céline Chevalier, Marc Kaplan, and Michele Minelli

Abstract

In this note, we study the security of oblivious transfer protocols in the presence of adversarial superposition queries. We define a security notion for the sender against a corrupted receiver that makes a superposition query. We present an oblivious transfer protocol that is secure against a quantum receiver restricted to a classical query but it is insecure when the receiver makes a quantum query.

Note: resolving missing footnote

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint. MINOR revision.
Keywords
Oblivious TransferPost-Quantum SecuritySuperposition Attack
Contact author(s)
ehsan ebrahimi @ uni lu
History
2021-02-02: last of 3 revisions
2020-06-27: received
See all versions
Short URL
https://ia.cr/2020/798
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2020/798,
      author = {Ehsan Ebrahimi and Céline Chevalier and Marc Kaplan and Michele Minelli},
      title = {Superposition Attack on {OT} Protocols},
      howpublished = {Cryptology {ePrint} Archive, Paper 2020/798},
      year = {2020},
      url = {https://eprint.iacr.org/2020/798}
}
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