Caesar cipher is an older and since outdated encryption technique used by julius caesar to "hide" messages he sent to his troops. using caesar cipher, each letter in the alphabet is translated to a letter with the same given offset from the original letter. characters that are not a-z remain as is. for example, if the message is hi zoe and the offset is 2, then the encrypted message is jk bqg, since the letter "j" is two letters after "h" in the alphabet, and "k" is two letters after "i" in the alphabet, etc. notice that since "z" is at the end of the alphabet and the offset is 2, the algorithm has to wrap back around to the beginning of the alphabet so that "z" translates to "b".a. tgpbkp jpqgb. sfncko ipnfc. uhpdlq krphd. pflbho innd