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Paper 2020/184
Fair and Decentralized Exchange of Digital Goods
Ariel Futoransky and Carlos Sarraute and Daniel Fernandez and 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)
- 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
-
CC BY