Could one use three different disks set at different positions and encrypt a strong message?
- Wheel 1: A = J
- Wheel 2: A = E
- Wheel 3: A = B
First letter is encrypted using 1 and then that wheel is rotated (possibly according to a key). Then letter 2 is encrypted using wheel 2 and is then rotated (possibly according to a different key than in the first wheel), and so forth.