Question

What are the new co-ordinates for (x, y) in the Rho step for t =3?

(a) (1, 7)

(b) (1, 4)

(c) (3, 2)

(d) none of the mentioned

The question was asked in final exam.

My question is taken from Secure Hash Algorithms (SHA) in portion Other Public Key Cryptosystems and Cryptographic Hash Functions of Cryptograph & Network Security

Answer 1

The correct choice is (d) none of the mentioned

The best I can explain: The correct answer is (1, 7) mod 5 which is (1, 2).

[(0 1 | 2 3)]^3 + (1 , 0 ) gives the answer.