LAUSR

As embedded integrated electronic systems (EIESs) become more pervasive (including in mission-critical applications), the need to ensure the security of data exchange in such a system against various malicious activities becomes more pronounced. However, designing secure and efficient solutions, such as authentication protocols, for the many different embedded systems with varying internal communication modes remains challenging. Therefore, in this paper, we propose a lightweight authenticated key-exchange (AKE) protocol for EIESs based on half-duplex and “command/response” bus. Specifically, the proposed protocol is designed to operate on resource-constrained devices, as well as having minimal number of interactions. We then prove the security of the proposed protocol and present the security parameter selection strategy for protocol implementation based on the empirical evaluations. Moreover, efficiency analysis also shows that the protocol can be effectively deployed in the EIESs environment.