Dead Packet Society
Even dead packets can tell tales.

Data Link and Physical Layer Protcols

The rise of unguided transmission methods and Software Defined Radio has rekindled interest to these once under-appreciated protocol layers. Posts in this section focus on (but not limited to) exploring radio macphy protocols.

Identifying CAN bus Devices using Traffic Analysis

Identifying CAN bus Devices using Traffic Analysis
Macphy Canbus Hackthemachine

Summary In this post I will cover how I use traffic analysis to determine the various functions of an unknown CAN bus protocol. I’ll use this analysis to map CAN bus addresses to
Reverse Engineering Unknown CAN bus Protocols

Reverse Engineering Unknown CAN bus Protocols
Macphy Canbus Hackthemachine

Summary In this post I will cover how I determine data structures in unknown CAN bus protocols. I’ll then be able to contrast these data structures to identify separate protocols from each other
Rebuilding CAN bus traffic from NMEA2000 logs

Rebuilding CAN bus traffic from NMEA2000 logs
Macphy Nmea2000 J1939 Canbus Hackthemachine

Summary In this post I will cover how I identified and extracted CAN bus traffic from a NMEA2000 data log of a mixed technology network. This is an important step for untangling and