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Demi’s personal blog

The personal blog of Demi Marie Obenour

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Securely Connecting To Local Devices: Cryptographically Generated Domain Names

Have you ever had a device, such as a printer, with a web interface? Have you ever tried to connect to that web interface via HTTPS? If you have, you’ll almost certainly have gotten an “untrusted certificate” warning, pointing out that you are vulnerable to a monster-in-the-middle (MITM) attack. Unless you are willing to set up and trust your own certificate authority and upload a custom…

Easily and Securely Setting Up Future Wireless Devices

Have you ever paired your smartphone or computer with a Bluetooth device, added a ZigBee device to your home ZigBee network, or used a mobile app to set up an IoT device? Have you ever wondered if your connection is secure or if there is an attacker intercepting all the traffic? Are you scared that you might be pairing with a malicious device that will inject keystrokes, rather than with the…