Before the first round of the Whirlpool algorithm, which is the operation that takes place?
(a) Addition of Key
(b) Substitution of Bytes
(c) Mixing of Rows
(d) Shifting of Columns
I have been asked this question in final exam.
My doubt stems from Whirlpool Algorithm topic in portion Message Authentication Codes, Whirlpool Algorithm and Key Management and Distribution of Cryptograph & Network Security