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Proceedings of the Korea Information Processing Society Conference

Design of group authentication and key exchange scheme for group-based communication in IoT environment

Dae-Hwi Lee, Im-Yeong Lee

Published Jan 1, 2018• 0 citations
Publisher
DOI
10.3745/pkips.y2018m05a.157

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The authenticated key agreement is one of the major security services that can be used to secure an Internet of Things (IoT) environment, where the devices collect the data and the data is then aggregated at the cloud server, and then a user needs to access the data stored at the server(s) securely. For this purpose, after a mutual authentication performed between a user and the accessed server, a session key needs to be established among them for secure communication. In this article, we design an efficient lattice-based authenticated key exchange protocol using ring-based version of learning with errors assumption for the IoT-enabled smart devices. The proposed protocol is basically a key exchange that uses the reconciliation mechanism. The detailed security analysis under the standard model has been performed along with the informal security analysis to show that the proposed protocol is robust against different attacks. We then simulate the proposed protocol under the NS-3 simulator to measure the network performance parameters like network throughput and latency. A comparative analysis shows that the proposed protocol has superior security, less computational cost, and comparable communication cost when compered these parameters with the other competing schemes.
Authenticated key exchange (AKE) protocol for client–server environments is a significant cryptographic primitive that provides communication confidentiality and mutual authentication between clients and servers. In an Internet of Things (IoT) environment, clients typically employ IoT devices with limited computing capability to interact with servers through the Internet. Numerous AKE protocols suitable for IoT devices, called AKE-IoT protocols, have been proposed. Recently, side-channel attacks have been conducted to defeat traditional cryptographic protocols because a side-channel adversary can retrieve partial content of long-term or short-term secret keys. Several leakage-resilient AKE (LRAKE) protocols were presented to counteract such attacks. Unfortunately, the existing LRAKE protocols are not suitable for IoT devices because expensive pairing operations are required for client sides. In this article, we propose the first efficient LRAKE protocol suitable for IoT devices, named LRAKE-IoT. By the unbalanced computation method, no pairing operation is required for client sides in our protocol. In the generic bilinear pairing group model, security analysis is conducted to demonstrate the security of the proposed protocol in the continuous-leakage-resilient extended-Canetti–Krawczyk model. Finally, computational experiences on two IoT devices are given to show that the proposed protocol is well-suited for IoT devices.