I think the most concern with this is that the confusion with utilizing it or something.
- Would this be installed or portable?
- Applicable on different OS?
- How does it activate?
These are just some questions that I initially thought of by reading it.
The sender needs to send the receiver key into the device and the receiver needs to send the encrypted text into the device. It can be done by pasting the text and the device reads it. Somethings has to be installed.
I just made the proof of concept. I would need help from someone to build it. You plug your keyboard into the device and the device into the computer.