A method of encryption that requires the same secret key to encipher and decipher the message is known as __________ encryption.
A) asymmetric
B) symmetric
C) public
D) private

Question

A method of encryption that requires the same secret key to encipher and decipher the message is known as __________ encryption.
A) asymmetric
B) symmetric 
C) public
D) private

Quizplus · Accepted Answer

Symmetric encryption uses the same secret key for both encryption and decryption of data. Asymmetric encryption (choice A) uses two different keys, one for encryption and one for decryption. Public key encryption (choice C) is a type of asymmetric encryption that uses a publicly available key for encryption and a private key for decryption. Private key encryption (choice D) is a vague term and is not a commonly used form of encryption.

A Method of Encryption That Requires the Same Secret Key