A CAN-Bus Lightweight Authentication Scheme

. 2021 Oct 25;21(21):7069. doi: 10.3390/s21217069

Algorithm 1: GW_Startup-Initial distribution of keys: GW broadcast of the group key.

Input:

{S_{g}}^{i}

T C^{i}

Output: Packet,

s k^{i}

seed = random64() ;

s k^{i}

K D F ({S_{g}}^{i}, s e e d)

;
Packet.data =

E n c r y p t ({S_{g}}^{i}, s k^{i})

;
Packet.CRC =

M G ({S_{g}}^{i} ∥ T C^{i} ∥ s e e d)

;