Cryptographic hash function takes an arbitrary block of data and returns _________

A) fixed size bit string

B) variable size bit string

C) variable sized byte string

D) both fixed size bit string and variable size bit string

Correct Answer : fixed size bit string

Explanation : Cryptographic hash functions are used in digital signatures and message authentication codes. The only issue with it is that it returns the same hash value every time for a message making it vulnerable to attackers to evaluate and break the cipher.