[Cryptography] Brainstorming for encrypted text messaging ideas...

[Grant Schultz]

Bear wrote,
> Considering this again and getting back to the simplicity of the
> one-time pad.... There is a classic construction for a simple
> mechanical device to assist the use of a one-time pad. Tabletop versions
> were in use in WWII, but a refined and convenient version could easily
> be made shirt-pocket size, with a 20-character photo-friendly display.
Yes, similar in principle to these devices here: 
https://calculating.wordpress.com/category/calculators-2/computing-calculators/
That might just do the trick.  Thank you!

Grant