WibsonTree: Efficiently Preserving Seller's Privacy in a Decentralized Data Marketplace

Autor:	Futoransky, Ariel, Sarraute, Carlos, Waissbein, Ariel, Travizano, Matias, Fernandez, Daniel
Rok vydání:	2020
Předmět:	Computer Science - Cryptography and Security Computer Science - Computers and Society
Druh dokumentu:	Working Paper
Popis:	We present a cryptographic primitive called WibsonTree designed to preserve users' privacy by allowing them to demonstrate predicates on their personal attributes, without revealing the values of those attributes. We suppose that there are three types of agents --buyers, sellers and notaries-- who interact in a decentralized privacy-preserving data marketplace (dPDM) such as the Wibson marketplace. We introduce the WibsonTree protocol as an efficient cryptographic primitive that enables the exchange of private information while preserving the seller's privacy. Using our primitive, a data seller can efficiently prove that he/she belongs to the target audience of a buyer's data request, without revealing any additional information. Comment: 8 pages, 2 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2002.03810 Zobrazit plný text záznamu View this record from Arxiv