Question

The hash matrix is of the size

(a) 16 × 8

(b) 16 × 4

(c) 8 × 8

(d) 4 × 16

The question was asked by my school teacher while I was bunking the class.

This intriguing question originated from Whirlpool Algorithm topic in section Message Authentication Codes, Whirlpool Algorithm and Key Management and Distribution of Cryptograph & Network Security

Answer 1

The correct answer is (c) 8 × 8

To elaborate: The hash matrix has a 8 × 8 matrix.