How to Use One Time Pad Cryptography with a Raspberry Pi
What if, however, there were a way to be certain that your personal emails, pictures of your pet kitten, backups of your tax returns for the past decade and so on were safe even if intercepted? Enter the One Time Pad.
The Notorious OTP
In simplest terms, a One Time Pad is a series of random numbers which you agree upon with someone with whom you wish to communicate, usually by meeting in person and exchanging pads.
Read more at TechRadar