Privacy-preserving photo sharing based on blockchain

• Published in: Applications of Digital Image Processing XLIII Vol. 11510; pp. 1151025 - 1151025-7
• Main Authors: Pfister, Pablo, Ebrahimi, Touradj
• Format: Conference Proceeding
• Language: English
• Published: SPIE 21.08.2020
• ISBN: 1510638261; 9781510638266
• ISSN: 0277-786X
• DOI: 10.1117/12.2569524

Sharing photos online has become an extremely popular activity, raising a wide concern on privacy issues related to the shared content. ProShare, a photo-sharing solution developed by Multimedia Signal Processing Group of EPFL addresses some of these privacy issues by relying on a trusted third party. Recently, distributed ledger technologies in general and blockchain, in particular, have been used to provide trust and censorship resistance in a decentralized manner. This paper proposes the use of blockchain technology to remove the need for a trusted third-party in the sharing process introduced by ProShare.