Search International and National Patent Collections

1. (WO2018165450) METHOD TO MITIGATE TRANSIENTS BASED ATTACKS ON KEY AGREEMENT SCHEMES OVER CONTROLLER AREA NETWORK

Pub. No.:    WO/2018/165450    International Application No.:    PCT/US2018/021581
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Fri Mar 09 00:59:59 CET 2018
IPC: H04L 12/40
H04L 9/08
Applicants: ROBERT BOSCH GMBH
JAIN, Shalabh
WANG, Qian
ARAFIN, Tanvir
GUAJARDO MERCHAN, Jorge
Inventors: JAIN, Shalabh
WANG, Qian
ARAFIN, Tanvir
GUAJARDO MERCHAN, Jorge
Title: METHOD TO MITIGATE TRANSIENTS BASED ATTACKS ON KEY AGREEMENT SCHEMES OVER CONTROLLER AREA NETWORK
Abstract:
A method for operating at least one node connected to a shared communication medium reduces or eliminates the ability of an adversary node to identify the at least one node based on transient signal characteristics of a signal that the at least one node generates when transmitting a bit through the shared communication medium. The method includes adjusting, with a controller in a first node, an impedance of a variable impedance circuit in the first node to a first impedance level that the controller determines randomly, the variable impedance circuit in the first node being connected to an output of a transceiver in the first node and to a shared communication medium, and transmitting, with the transceiver, a first data bit through the shared communication medium with the variable impedance circuit producing the first impedance level.