Cyber Secured Internet of Things-Enabled Additive Manufacturing: Industry 4.0 Perspective

The multitude of nodes, sensors and other devices in internet of things enables manufacturing systems to create security challenges for engineers and researchers. In particular, the nodes' mobility, the mobile robots in the internet of things-based nodes increase the vulnerability of the device and sensors in the manufacturing network. In this paper, the encryption scheme is implemented to secure an internet of things-based additive manufacturing nodes against the network layer attack. To this end, the paper considers the black hole attack as a network layer attack and modifies the routing protocol to mitigate the black hole attack. The RSA encryption technique is used to encrypt and decrypt the routing messages between the manufacturing nodes using the public and private keys. The public key is used for encrypting the route request messages from manufacturing nodes while the private key is utilized for decrypting the messages at the receiver node. The proposed scheme is simulated using network simulator NS-2 and its performances are compared.