Many IoT devices (RFID, smart locks, etc.) are vulnerable to replay attacks, where an attacker records and replays a radio signal to gain unauthorized access.
- How do rolling codes help prevent replay attacks?
- Can cryptographic timestamps be used to verify the freshness of a signal?
- Are there industry-standard protocols for securing radio-based IoT communication?
I’d like to know the best ways to prevent replay attacks in wireless IoT systems.