Which term is a broad umbrella for methods that perform encryption?

Which term is a broad umbrella for methods that perform encryption?

• A. Caesar Cipher
• B. Encryption
• C. Cipher
• D. Decryption

Answer: (C)

Think of cipher as the label for the algorithmic approach used to scramble messages. It covers every method that performs encryption, from simple substitutions to complex modern algorithms. The act of turning plaintext into ciphertext is encryption, not the umbrella term itself, and decryption is the reverse process. A Caesar cipher is just one specific technique within that umbrella, not the umbrella as a whole. So the broad term for methods that perform encryption is cipher.

Think of cipher as the label for the algorithmic approach used to scramble messages. It covers every method that performs encryption, from simple substitutions to complex modern algorithms. The act of turning plaintext into ciphertext is encryption, not the umbrella term itself, and decryption is the reverse process. A Caesar cipher is just one specific technique within that umbrella, not the umbrella as a whole. So the broad term for methods that perform encryption is cipher.