volatile.py 文件源码

def __init__(self, inf, sup, seed=None, forever=1, renewkeys=0):
        self.forever = forever
        self.renewkeys = renewkeys
        self.inf = inf
        self.rnd = random.Random(seed)
        self.sbox_size = 256

        self.top = sup-inf+1

        n=0
        while (1<<n) < self.top:
            n += 1
        self.n =n

        self.fs = min(3,(n+1)/2)
        self.fsmask = 2**self.fs-1
        self.rounds = max(self.n,3)
        self.turns = 0
        self.i = 0