Homomorphic Cryptography-based Privacy-Preserving Network Communications

Antoine Guellier (1) , Christophe Bidan (1) , Nicolas Prigent (1)

1 CIDRE - Confidentialité, Intégrité, Disponibilité et Répartition

The development of worldwide communications, along with the dramatic increase of computational and storage capacities promise numerous benefits for societies in the years to come. For these systems to develop, security and privacy are necessary. This work presents a novel protocol for privacy preserving network communications, using homo-morphic cryptography. The malleability properties of homomorphic en-cryption allows routing without ever disclosing the sender or receiver of a message, while resisting against basic end-to-end attacks. We first present our protocol in an abstract network model, and instantiate it for ad-hoc networks as a use-case example.

Mots clés: Homomorphic Cryptography; Privacy; Anonymous; Network; Communications; Routing; Protocol

Domaines: Cryptographie et sécurité [cs.CR]; Réseaux et télécommunications [cs.NI]; Informatique ubiquitaire

Antoine Guellier, Christophe Bidan, Nicolas Prigent. Homomorphic Cryptography-based Privacy-Preserving Network Communications. Applications and Techniques in Information Security, Batten, Lynn and Li, Gang and Niu, Wenjia and Warren, Matthew, Nov 2014, Deakin University, Melbourne, VIC, Australia, France. pp.159-170, ⟨10.1007/978-3-662-45670-5_15⟩. ⟨hal-01088441⟩