IE_Challenge_UDSTransferData

Given the provided CAN bus data transfer log, identify and re-assemble the flash data sent to the ECU and verify it matches the original binary mg1cs002-stockmapsflash.transferdata

Setup

Run yarn inside project root to install pre-requisite packages.

Run

You can start the dev server with yarn dev. From there you can open the app on http://localhost:5173/.

Build

Run yarn build, the output will be in /dist. You can use python to run a server with this by using

python3 -m http.server 3000 -d dist

http://0.0.0.0:3000/ will then be running the built app locally.

Test

I wrote a test that verifies that the transferdata from the parsed and stitched frames match the original provided transferdata file. You can run the test with yarn test. I used SHA-1 checksums to verify data integrity.

canUtils.test.ts

Notes

References

• Protocols: UDS, OBD2, WWH-OBD and OBDonUDS

  • https://www.csselectronics.com/pages/uds-protocol-tutorial-unified-diagnostic-services#uds-message-structure

• CAN Bus

  • https://en.wikipedia.org/wiki/CAN_bus