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In this paper we propose a secure wireless sensor network system for vehicle health monitoring (VHM). We discuss the architecture of the proposed model, and it's implementation in vehicles. Modified AES-CCM is used to provide confidentiality in the network. In the proposed scheme combination of interactive and non-interactive methods are used for reliable message delivery.

The need for vehicular data security and privacy protection is already enormous and increases even further. Prominent application areas are for instance theft protection, anti-counterfeiting, secure data storage and secure communication inside the vehicle and from the vehicle to the outside world. However, most of the vehicular security and privacy protection solutions involve modern cryptography and require availability of cryptographic keys in the vehicle and in related backend infrastructure. A central aspect for ensuring this availability and a controlled usage of such cryptographic keys is a secure key management, which affects the whole lifecycle of the key, from creation and distribution, usage, backup and update up to key deactivation.