More complex (and hopefully more effective) encryption is possible with the aid of machines: dedicated mechanical and electromechanical devices, mechanical, electronic (and fluidic) calculators; and programmed electronic (and fluidic) computers.
Mechanical Crypto Machines
Prior to the advent of the digital computer, machines were built that could encipher or decipher messages according to rules too complicated to be carried out by hand with sufficient speed and accuracy.
Of these, my favorite is the Jefferson . . .
We're very sorry, but this content is only available to current subscribers.
Perhaps you just need to log in. If you're already logged in, please check if your subscription has expired by looking here.
If you're not already a subscriber you need to know that our columns and editorials are free, along with a few other items, but almost all stories and all downloads are paid only.
If you want to read the entire gazette, you need to either subscribe here, or purchase a download of any single issue at the Baen Books e-book store or at Amazon.com.
- The Grantville Gazette Staff