The repeated use of the algorithm to encipher a message consisting of many blocks is called

A.
Cipher feedback

B.
Elliptical curve

C.
Cipher block chaining

D.
Triple DES

Explanation:
“There are two main types of symmetric algorithms: stream and block ciphers. Like their names
sound, block ciphers work on blocks of plaintext and ciphertext, whereas stream ciphers work on
streams of plaintext and ciphertext, on bit or byte at a time. Pg 521. Shon Harris CISSP All-In-One
Certification Exam Guide Cipher Block Chaining (CBC) operates with plaintext blocks of 64 bits.
….Note that in this mode, errors propogate.” Pg 149 Krutz: The CISSP Prep Guide