def random_mpz(cls, n_bits):
low = 2**(n_bits-1)
high = low * 2
# increment and find a prime
# return randrange(low, high)
return number.getRandomNumber(n_bits, cls.RAND.get_bytes)
def random_mpz_lt(cls, max):
# return randrange(0, max)
n_bits = int(math.floor(math.log(max, 2)))
return (number.getRandomNumber(n_bits, cls.RAND.get_bytes) % max)
