eprint.iacr.org will be offline for approximately an hour for routine maintenance at 11pm UTC on Tuesday, April 16. We lost some data between April 12 and April 14, and some authors have been notified that they need to resubmit their papers.

Paper 2020/184

Fair and Decentralized Exchange of Digital Goods

Ariel Futoransky, Carlos Sarraute, Daniel Fernandez, Matias Travizano, and Ariel Waissbein

Abstract

We construct a privacy-preserving, distributed and decentralized marketplace where parties can exchange data for tokens. In this market, buyers and sellers make transactions in a blockchain and interact with a third party, called notary, who has the ability to vouch for the authenticity and integrity of the data. We introduce a protocol for the data-token exchange where neither party gains more information than what it is paying for, and the exchange is fair: either both parties gets the other's item or neither does. No third party involvement is required after setup, and no dispute resolution is needed.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint. MINOR revision.
Keywords
blockchainsmart contractsdecentralized marketplacefair exchange
Contact author(s)
csarraute @ gmail com
History
2020-02-18: received
Short URL
https://ia.cr/2020/184
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2020/184,
      author = {Ariel Futoransky and Carlos Sarraute and Daniel Fernandez and Matias Travizano and Ariel Waissbein},
      title = {Fair and Decentralized Exchange of Digital Goods},
      howpublished = {Cryptology ePrint Archive, Paper 2020/184},
      year = {2020},
      note = {\url{https://eprint.iacr.org/2020/184}},
      url = {https://eprint.iacr.org/2020/184}
}
Note: In order to protect the privacy of readers, eprint.iacr.org does not use cookies or embedded third party content.