Boettner-eric / Thesis

Onboard Keystroke Encryption for Secure Entry

Key Crypt

• A demonstration of Onboard Keystroke Encryption
• This keyboard is an attempt to close a large vulnerability in secure text input by encrypting keystrokes before they enter a host operating system.

Features

• Secure input and local encryption on the keyboard's processor.
• No driver software needed, all work is done locally in QMK.
• Clear visual menus and settings onboard.
• Sample console software for live decryption.

Repository organization

• Hardware
  • Design files for top plate and case
  • Wiring diagram
  • Key layout editor data
  • Hardware assembly instructions and photos
• Software
  • Makefile
  • aes.c (an implementation of AES in c)
  • aes.h
  • screens.c (a console that mimics the oled of the keyboard)
  • screens.h
  • tests.py (testing file for AES verification)
  • translate.py
  • demo.py (simple decryption app)
  • Console applications / hid listeners (in progress)
• Firmware
  • keymaps/default
    • config.h
    • keymap.c
    • readme.md
  • aes.c
  • aes.h
  • config.h
  • key_crypt.c
  • key_crypt.h
  • info.json
  • readme.md
  • rules.mk

Credits

See bibliography for more comprehensive listings and citations

• Eric Roberts - for advising me, providing feedback and guidance
• Jay Ewing - for help with hardware design, planning and assembly
• NIST - for clear and helpful documentation for AES encryption and decryption
• QMK - for creating a strong open source foundation for keyboard programming
• PDXKBC - for providing feedback on design and usability

License

MIT