Fig. 6: Secure self-driving.
From: Chip-scale reconfigurable carbon nanotube physical unclonable functions
a Vehicle authentication and communications using a PUF-based key exchange protocol. See Supplementary Fig. 26 for the detailed implementation scheme of the vehicular network, and Supplementary Figs. 27–29 for the PUF-based key exchange protocol implementations. b Self-driving modeling of 100 vehicle network in Central Hong Kong. The modeling is conducted on OMNeT++. See Supplementary Movie 1 for the real-time self-driving. c–f PMF of time delays resulted from the vehicle authentication and communications for self-driving networks of 10–100 vehicles, showing that the PUF-based data exchange protocol ensures negligible time delays. g Plot of the time delays versus the self-driving vehicle numbers, showing a mean delay of ~12 ms, ideal for real-world self-driving security applications. h Plot of the data transmitted between the vehicles and the associated computation cost versus the self-driving vehicle numbers, proving balanced hardware security, data transmission bits, and computation cost.
