def SRP_step3(state):
    state["b"] = randrange(2, state["p"]-2);
    state["B"] = (state["k"] * state["v"] + mypow(state["g"], state["b"], state["p"]));
    return state;
    
# S, C            Compute string uH = SHA256(A|B), u = integer of uH
dataset/ETHPy150Open reschly/cryptopals/prob36.py/SRP_step3/original