I am reading about encryption, and I'm curious why in all of the examples and texts, we do not encrypt the punctuation marks.
hello world! my name is alice and i'm writing a super secret message to bob.
vszzc kcfzr! am boas wg ozwqs obr w'a kfwhwbu o gidsf gsqfsh asggous hc pcp.
The above example is a simple caesar cipher, but I'm curious about other more main stream encryption algorithms. Why don't we encrypt punctuation?
I've been reading about the old school symmetric key ciphers and not modern asymmetric encryption algorithms.