Privacy-preserving photo sharing based on blockchain

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.

[1]  Brent Waters,et al.  Ciphertext-Policy Attribute-Based Encryption , 2007, 2007 IEEE Symposium on Security and Privacy (SP '07).

[2]  Touradj Ebrahimi,et al.  Privacy-preserving photo sharing based on a secure JPEG , 2015, 2015 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS).

[3]  Kateryna Isirova,et al.  Decentralized public key infrastructure development principles , 2018, 2018 IEEE 9th International Conference on Dependable Systems, Services and Technologies (DESSERT).

[4]  Dragos Velicanu,et al.  A Decentralized Public Key Infrastructure with Identity Retention , 2014, IACR Cryptol. ePrint Arch..

[5]  Enis Ceyhun Alp,et al.  C ALYPSO : Auditable Sharing of Private Data over Blockchains , 2018 .

[6]  Yue Fu,et al.  Meta-Key: A Secure Data-Sharing Protocol Under Blockchain-Based Decentralized Storage Architecture , 2017, IEEE Networking Letters.

[7]  Juan Benet,et al.  IPFS - Content Addressed, Versioned, P2P File System , 2014, ArXiv.