USB Armory

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The USB armory from Inverse Path is an open source hardware design, implementing a flash drive sized computer.

The compact USB powered device provides a platform for developing and running a variety of applications.

The security features of the USB armory System on a Chip (SoC), combined with the openness of the board design, empower developers and users with a fully customizable USB trusted device for open and innovative personal security applications.

The hardware design features the Freescale i.MX53 processor, supporting advanced security features such as secure boot and ARM® TrustZone®.

  • Freescale i.MX53 ARM® Cortex™-A8 800Mhz, 512MB DDR3 RAM
  • USB host powered (<500 mA) device with compact form factor (65 x 19 x 6 mm)
  • ARM® TrustZone®, secure boot + storage + RAM
  • microSD card slot
  • 5-pin breakout header with GPIOs and UART
  • customizable LED, including secure mode detection
  • USB device emulation (CDC Ethernet, mass storage, HID, etc.)
  • Open Hardware & Software

Installation

Follow the official Arch Linux ARM instructions.

Usage

LED Brightness

By default, LED is way too bright after boot. Disable default modules:

/etc/modprobe.d/led.conf
blacklist leds_gpio
blacklist led_class
blacklist ledtrig_heartbeat

Use Systemd#Temporary files to set the brightness config:

/etc/tmpfiles.d/led.conf
w /sys/class/gpio/export - - - - 123
w /sys/class/gpio/gpio123/direction - - - - in

See also