i202 Fall 2010 School of Information, UC Berkeley

Having talked about how the Enigma encryption algorithm and the analysis of language, it is interesting to note that Caesar already used a character shift encryption method to secure his messages from other unauthorized people. As a response, his enemies started to analyze language and figured out the frequency of characters in the language (as Bob has mentioned several times). In that sense, the analysis of language already goes back to Caesar... http://en.wikipedia.org/wiki/Caesar_cipher