Week 7 pg508

trans- forms a message or data file in such a way that its contents are hidden from unauthorized readers. An original message or file that has not yet been encrypted is referred to as or cleartext. An encrypted message or file is referred to as Data can be encrypted one file at a time, or an entire storage volume can be encrypted. protocols, such as passwords, PINs, and fingerprint scanners, are the first line of defense against data thieves and snoopers. The single most effective security measure for digital devices is to pass-word protect access to them. A(n) password is difficult to hack. Conventional wisdom tells us that strong passwords are at least characters in length and include one or more uppercase letters, numbers, and symbols. A(n) force attack uses password-cracking software to generate every possible combination of letters, numerals, and symbols. A(n) attack helps hackers guess your password by stepping through a dictionary containing word lists in common languages. Password is a measure of a password's unpredictability. For example, the entropy of a four-digit iPhone passcode is 14 bits. The core function of a password (sometimes called a keychain) is to store user IDs with their corresponding passwords. Passwords can be stored in the locally, or on a USB drive