1.  Bob is using the El Gamal signature scheme. His public key is (p, α, β) = (97,23,15)
    and his secret key is a= 67.
     a) Calculate Bob’s signature for message m=17 with ephemeral random k=31.

a) p = 97, α = 23, β = 15, a = 67, k = 31, m = 17

    r = αk (mod p) = 2331 mod 97 = 87
    s = k-1 (m – ar) (mod (p - 1) = 31-1 (17 – 67*87) mod 96 = 20
    so does that mean that the signed message is (17, 87, 20)?