Smart Objects and Technologies for Social Good. Second International Conference, GOODTECHS 2016, Venice, Italy, November 30 – December 1, 2016, Proceedings

Research Article

Preserving Privacy in a P2P Social Network

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  • @INPROCEEDINGS{10.1007/978-3-319-61949-1_22,
        author={Monica Mordonini and Agostino Poggi and Michele Tomaiuolo},
        title={Preserving Privacy in a P2P Social Network},
        proceedings={Smart Objects and Technologies for Social Good. Second International Conference, GOODTECHS 2016, Venice, Italy, November 30 -- December 1, 2016, Proceedings},
        proceedings_a={GOODTECHS},
        year={2017},
        month={7},
        keywords={Social network Peer-to-Peer File sharing Distributed hash table Anonymity Confidentiality Key-based identity Attribute-Based Encryption},
        doi={10.1007/978-3-319-61949-1_22}
    }
    
  • Monica Mordonini
    Agostino Poggi
    Michele Tomaiuolo
    Year: 2017
    Preserving Privacy in a P2P Social Network
    GOODTECHS
    Springer
    DOI: 10.1007/978-3-319-61949-1_22
Monica Mordonini1, Agostino Poggi1, Michele Tomaiuolo1,*
  • 1: University of Parma
*Contact email: michele.tomaiuolo@unipr.it

Abstract

Building centralized social networking systems has many drawbacks, e.g., lack of privacy, lack of anonymity, risks of censorship, and operating costs. As it is discussed in this article, an alternative approach is possible. A prototype system, named Blogracy, has been realized as a micro-blogging social networking system, based on well-known P2P technologies, such as DHTs and BitTorrent. In particular, this article presents the security architecture of the system, which relies on a key-based identity system and a scheme for attribute-based content encryption, with multiple authorities. Moreover, some empirical results obtained in test operations over PlanetLab are presented, comparing plain and I2P anonymized communications.