Show HN: Tripwire: A new anti evil maid defense
2 days ago
- #monitoring
- #privacy
- #security
- Evil maid attacks involve unauthorized physical access to a device to spy on user activities without detection.
- Tripwire is a robust monitoring system designed to defend against sophisticated adversaries, unlike traditional home monitoring products.
- Tripwire uses a Raspberry Pi 5 with a camera module and PIR sensor to detect intrusions and notify users via a web client.
- The system shares random secrets between the server and client, deleting them upon detection to prevent tampering.
- Tripwire includes cryptographic signing of photos to ensure integrity and detect tampering.
- The system is designed to survive network and power outages, with features for identifying false positives and negatives.
- Setup requires specific hardware, including a Raspberry Pi 5, camera module, PIR sensor, and optional UPS.
- Configuration involves tuning camera settings, setting up dynamic DNS, and configuring security parameters.
- Tripwire's web client allows users to monitor live photos, verify secrets, and check photo signatures.
- Limitations include challenges with secure data deletion and potential false positives triggered by attackers.