Question

The message in SHA-512 is padded so that it’s length is

(a) 832 mod 1024

(b) 768 mod 1024

(c) 960 mod 1024

(d) 896 mod 1024

The question was posed to me in an online quiz.

I need to ask this question from Secure Hash Algorithms (SHA) in division Other Public Key Cryptosystems and Cryptographic Hash Functions of Cryptograph & Network Security

Answer 1

Right option is (d) 896 mod 1024

To elaborate: Padding is done so that the length is 896 mod 1024.