End-of-Train and Head-of-Train Remote Linking Protocol Weak Authentication

The protocol used for remote linking over RF for End-of-Train and

Head-of-Train (also known as a FRED) relies on a BCH checksum for packet

creation. It is possible to create these EoT and HoT packets with a

software defined radio and issue brake control commands to the EoT

device, disrupting operations or potentially overwhelming the brake

systems.