In the Elgamal Digital Signature method, an attacker can easily calculate the signer's private key if the same ephemeral key is used to sign two separate messages. How this attack works is described in our textbook (Section 10.3.3 Reuse of the Ephemeral Key). Suppose that the attacker Oscar gotten the following two shifts signed by Bob with the same temporary key. 1. (X1, (r, S)) = (13, (3, 1)) 2. (x2, (r, s2)) = (22, (3, 14)) Also, assume that Oscar knows in Bob's public key (p, a, B) = (29, 2,7). Show how Oscar can calculate Bob's private key with this information