Wireless Keyboard Sniffer Known as Keykeriki

Overview

The Keykeriki is an open source hardware and software project which can easily decode the Microsoft keyboard since it is a universal wireless keyboard sniffer.

Explanation

The Texas Instruments TRF7900 chips is the technical basis of the Keykeriki wherein an Atmel ATmega microcontroller has the control. The logging abilities are made possible by using an SD card interface included into the board layout. A 5V source or directly through the USB bus can be used to power up the board. The hardware is designed to be small and versatile so that it can be extended to currently undetected/unknown keyboard traffic or hardware extensions. A user can either choose a decent terminal application or the keyctrl software which is part of the software package, when the device is connected to a USB port.

For interfacing with external hardware extensions, the Keykeriki uses one of the ATmega USART to provide additional functionality. The interfaces available on the board include USART connector for Backpacks, external antenna connector, SD card slot, and Mini-B USB connector (USB to serial + power supply).

The device can capture and decode keystrokes, decrypt data, translate HID codes, and process decrypted data.