GitHub - XGxF3/tesla-dashcam-decrypt: Batch-decrypt Tesla 2026.20 encrypted dashcam files locally. Full write-up of the eCryptfs encryption scheme reverse-engineered from dashcam.tesla.com · GitHub
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Tesla Dashcam Decryptor
Batch-decrypt Tesla 2026.20+ encrypted dashcam .mp4 files locally.
Tesla's 2026.20 update encrypts all dashcam and Sentry Mode recordings on USB. This tool lets you decrypt an entire drive's worth of clips at once — no need to load files one-by-one in a browser.
How it works
Reverse-engineered from dashcam.tesla.com:
Each encrypted .mp4 has a unique UUID embedded in its 20-byte header
The tool posts those UUIDs to Tesla's API to retrieve per-file AES-128-CBC keys
Files are decrypted in 4096-byte chunks (each chunk has its own 16-byte IV prepended)
Your footage never leaves your machine — only the UUID list touches Tesla's servers
Requirements
Python 3.10+
A Tesla account with 2026.20+ firmware
A Bearer token from dashcam.tesla.com (instructions below)
Setup
python3 -m venv .venv<br>source .venv/bin/activate # Windows: .venv\Scripts\activate<br>pip install -r requirements.txt
Getting your token
Open dashcam.tesla.com and log in
Open DevTools → Network tab
Drop any encrypted clip into the page
Click any /api/1/ request → Headers → copy the value after Authorization: Bearer
Usage
source .venv/bin/activate
python tesla_dashcam_decrypt.py \<br>/Volumes/TESLA/TeslaCam \<br>~/Desktop/TeslaCam_Decrypted \<br>--token "YOUR_BEARER_TOKEN"
Options:
--token Bearer token from dashcam.tesla.com (required)<br>--batch-size Files per API call, default 20<br>--skip-existing Skip files already in output folder (default: on)<br>--dry-run Fetch keys but don't write files
Running tests
pip install -r requirements-dev.txt<br>pytest tests/ -v -m "not integration"
For integration tests with real clips, copy .env.example to .env, add your token, put encrypted clips in EncryptedClips/, then:
pytest tests/ -v -m integration
Security notes
Your token expires periodically — grab a fresh one each session
.env, EncryptedClips/, and DecryptedClips/ are all gitignored
Never commit real clips or tokens
License
MIT
About
Batch-decrypt Tesla 2026.20 encrypted dashcam files locally. Full write-up of the eCryptfs encryption scheme reverse-engineered from dashcam.tesla.com
github.com/XGxF3/tesla-dashcam-decrypt/blob/main/WRITEUP.md
Topics
python
aes
reverse-engineering
tesla
decryption
dashcam
security-research
ecryptfs
tesla-motors
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