Paper 2025/1291 Original: eprint.iacr.org/2025/1291 ↗

A note on the security of the BitVM3 garbling scheme

Ariel Futoransky
Gabriel Larotonda
Fadi Barbara
Abstract

We provide minimal counterexamples for the security of the BitVM3 garbling scheme: our attack allows the evaluator to forge input and output wires. Then we use the same idea to exhibit an attack on the forward label propagation garbling scheme proposed in a more recent paper. In both cases, the authenticity property of the garbling scheme is broken.

Metadata
Available format(s)
PDF
Category
Attacks and cryptanalysis
Publication info
Preprint.
History
2025-07-18: last updated
2025-07-15: published
Short URL
https://ia.cr/2025/1291
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2025/1291,
      author = {Ariel Futoransky and Gabriel Larotonda and Fadi Barbara},
      title = {A note on the security of the BitVM3 garbling scheme},
      howpublished = {Cryptology {ePrint} Archive, Paper 2025/1291},
      year = {2025},
      url = {https://eprint.iacr.org/2025/1291}
}
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