CISM Certified Information Security Manager – Question1021

A message is being sent with a hash. The risk of an attacker changing the message and generating an authentic hash value can be mitigated by:

A.
using a secret key in conjunction with the hash algorithm
B. requiring the recipient to use a different hash algorithm
C. using the sender’s public key to encrypt the message
D. generating hash output that is the same size as the original message

Correct Answer: A