As I start to get back into computers and such, I was thinking of something \ntoday. How exactly does the password option work in RAR archives? When \nyou archive a file (or files) you can see the filenames in plain text if \nyou look at the archive in notepad or some such. I'm assuming it just uses \nthe password like a key is used in normal encryption of something. Even \nthen, how does the encryption know that you've entered the correct \npassword/key? If you were given an encrypted statement and told to decrypt \nit, how would you know that you did it correctly unless you had something \nto go by (assuming the statement wasn't plain text)? Does the RAR archive \nhave something to look at and say "yes, this is correct"? Or even if we're \nnot talking about a RAR archive and something is encrypted using a certain \nkey, how does the software know that you've entered the correct decryption \nkey?\n\nJust a thought.\n\nThanks in advance for any enlightenment.