Paper 2022/265

Non-interactive Mimblewimble transactions, revisited

Georg Fuchsbauer and Michele Orrù

Abstract

Mimblewimble is a cryptocurrency protocol promising to overcome notorious blockchain scalability issues. To this day, one of the major factors hindering its wider adoption is the lack of non-interactive transactions, that is, payments where only the sender needs to be online. We start from a proposal by Yu that adds non-interactive transactions to stealth addresses to Mimblewimble, but which turned out to be flawed. Using ideas from Burkett, we propose a modified scheme and analyze it using the provable-security methodology.

Note: Improved security of the scheme, not susceptible to Wagner's attack anymore.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint. MINOR revision.
Keywords
cryptographic protocolse-cashmimblewimble
Contact author(s)
michele orru @ berkeley edu
History
2022-04-04: last of 2 revisions
2022-03-02: received
See all versions
Short URL
https://ia.cr/2022/265
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2022/265,
      author = {Georg Fuchsbauer and Michele Orrù},
      title = {Non-interactive Mimblewimble transactions, revisited},
      howpublished = {Cryptology ePrint Archive, Paper 2022/265},
      year = {2022},
      note = {\url{https://eprint.iacr.org/2022/265}},
      url = {https://eprint.iacr.org/2022/265}
}
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