diTii.com Digital News Hub

Sign up with your email address to be the first to know about latest news and more.

I agree to have my personal information transfered to MailChimp (more information)

May282006

A Look Back: Nema Machine

This Nema Machine was classified and used primarily by the Swiss Army and Air Forceup until 1992. …the letter you have typed is immediately encrypted into another letter – a letter will light up on the light board, which is above the keyboard. However the electrical circuit that is created to cause the light to go on passes through a system of rotors, and after every key stroke, at least one of the rotors rotates, so if you were to press the same letter a second time, it would now encrypt as a different letter.

Share This Story, Choose Your Platform!