An attack based on the probability of two different messages using the same hash function producing a common message digest is called a:
A.
Differential cryptanalysis
B.
Differential linear cryptanalysis
C.
Birthday attack
D.
Statistical attack
Explanation:
A birthday attack is usually based on the probability of two different
messages using the same hash function producing a common message digest. The name
comes from the fact that in a room with 23 people, the probability of two or more
people having the same birthday is greater than 50 percent.