Previously only one Zodiac cipher had been solved, also by citizens, namely a California couple, back when the killings had just started. This one, however, was considered even more complex.

As discussed above, however, although the Caesar cipher provides a great introduction to cryptography, in the computer age it is no longer a secure way to send encrypted communications electronically.

The Indiana Jones cipher machine code is solved with the Captain’s Code and Code Tables, to get through the door on the Kummetz.