One can break a Cæsar cipher with a key of one (one letter down in the alphabet) by inspection. What is the most appropriate approach for longer keys?1) Letter frequency analysis.2) translation from Latin to English.3) Brute force.4) An inverse character map.
The Answer is 1. Letter frequency analysis
In scenarios where inspection might take a lot of time for cracking a ceaser cipher, a frequency analysis of letters can be performed.
