Emiliano De Cristofaro

TL;DR: In this paper, the authors present and formalize the notion of ephemeral publishing (EphPub) to prevent the access to expired content, where sensitive content is published encrypted and the key material is distributed, in a steganographic manner, to randomly selected and independent resolvers.

TL;DR: This paper analyzed the characteristics of abusive users and what distinguishes them from typical social media users, and found that while their tweets are often seemingly about aggressive and hateful subjects, "Gamergaters" do not exhibit common expressions of online anger, and in fact primarily differ from typical users in that their tweets were less joyful.

TL;DR: In this article, the authors present two protocols for the privacy-preserving evaluation of sample set similarity, where similarity is measured as the Jaccard index and MinHash is used to compute the similarity of two sets.

TL;DR: In this paper, the authors investigate the use of cryptographic primitives for processing outsourced network functions, so that the provider does not learn any sensitive information, and propose a few instantiations using partial homomorphic encryption and public-key encryption with keyword search.

TL;DR: The Common Friends service is introduced, a framework for finding common friends which protects privacy of non-mutual friends and guarantees authenticity of friendships, and an efficient instantiation is proposed, based on Bloom filters, that only incurs a constant number of public-key operations and appreciably low communication overhead.