Answer:
64 bits.
Step-by-step explanation:
Secure Hash Algorithms (SHA) :- These are a family of cryptographic hash functions. There are basically four types of secure hash algorithms for generating cryptographically secure one-way hash.They are as following:-
SHA-0
SHA-1
SHA-2
SHA-3
SHA -2 consists of SHA-512 and the word size used by it is 64 bits.