Usage is simply plugging the Passkeeper into the USB port of your computer where it presents itself as a network interface. Of course, this build is all about the software, and for that, the Passkeeper device is built in Go, with a system that builds a web interface, builds the firmware, and writes everything to an SD card. A 3D printed case keeps everything together. The rest of the hardware is a tiny OLED SPI display, an RFID card reader, a few LEDs, some wire, and some solder. You might be questioning the use of a Pi Zero, but given that it’s an entire Linux system for just a few bucks, it only makes sense. The hardware for this device is built around the Raspberry Pi Zero.

It encrypts your passwords, and only through the magic of a special key fob will you ever get your passwords out of this device. The Passkeeper is a hardware password storage system built on a Raspberry Pi. Unless you’re one of the cool people who uses the same password everywhere, you might be in need of a hardware device that keeps your usernames and passwords handy.

Usb password key