Hello,
I have experience in the management of partitions with LUKS (partition encryption) & files encryption using public/private keys (GPG, RSA, DSA) I can develop a small script in Bash or Python, according to your needs (MAC Address, motherboard model, etc)
I've experience in cross-compile also I worked with ARM processors, and various RPi. Previosly, I worked with embedded Linux ( OpenWRT, DD-WRT, RouterOs Tomato), and various toolchains uClib-NG, uClib, OpenWRT SDK, Android NDK.
I know that this project can charge more, but I need to add positive to my profile.
Kind regards.