Private inter-network routing for Wireless Sensor Networks and the Internet of Things

Abstract

Access to the full text of the published version may require a subscription. Rights ABSTRACTAs computing becomes increasingly pervasive, di erent heterogeneous networks are connected and integrated. is is especially true in the Internet of ings (IoT) and Wireless Sensor Networks (WSN) se ings. However, as di erent networks managed by di erent parties and with di erent security requirements are integrated, security becomes a primary concern. WSN nodes, in particular, are o en deployed "in the open", where a potential a acker can gain physical access to the device. As nodes can be deployed in hostile or di cult scenarios, such as military ba le elds or disaster recovery se ings, it is crucial to avoid escalation from successful a acks on a single node to the whole network, and from there to other connected networks. It is therefore crucial to secure the communication within the WSN, and in particular, maintain context information, such as the network topology and the location and identity of base stations (which collect data gathered by the sensors) private.In this paper, we propose a protocol achieving anonymous routing between di erent interconnected IoT or WSN networks, based on the Spatial Bloom Filter (SBF) data structure. e protocol enables communications between the nodes through the use of anonymous identi ers, thus hiding the location and identity of the nodes within the network. e proposed routing strategy preserves context privacy, and prevents adversaries from learning the network structure and topology, as routing information is encrypted using a homomorphic encryption scheme, and computed only in the encrypted domain. Preserving context privacy is crucial in preventing adversaries from gaining valuable network information from a successful a acks on a single node of the network, and reduces the potential for a ack escalation. CCS CONCEPTS•Security and privacy →Network security; Embedded systems security;Permission to make digital

Bloom filter variants for multiple sets: a comparative assessment

“…In Figure 1 we provide the results of an experiment where multiple word lengths are used over the same test dataset. For this experiment, we store 255 sets each containing 256 elements, for a total of 65280 elements in a filter of length 2 23 bits. As the two figures clearly depict, a small word value (2 10 ) significantly increases the number of errors returned by the filter (a formal definition of such errors is provided in the following).…”

An Anonymous Inter-Network RoutingProtocol for the Internet of Things

“…Part of the results of this article were previously presented by the authors in a shorter version at the International Workshop on Malicious Software and Hardware in the Internet of Things, co-located with Computing Frontiers 2017 [17]. The proposed construction is targeted at preserving context privacy within a network composed of a number of interconnected subetworks.…”

An Anonymous Inter-Network Routing Protocol for the Internet of Things

“…In this paper we introduce a novel anonymous routing mechanism, based on the spatial Bloom filter data structure and homomorphic encryption. Part of the results of this article were previously presented by the authors in a shorter version at the International Workshop on Malicious Software and Hardware in the Internet of Things, co-located with Computing Frontiers 2017 [17]. The proposed construction is targeted at preserving context privacy within a network composed of a number of interconnected subetworks.…”