据说Python的随机数生成器依赖
time
这意味着如果我想创建一个这样的随机数
23987429038409238409283
并将其存储到浏览器cookie中以进行“身份验证”
有可能有人可以根据“时间”找到这个数字。
所以问题是，我如何创建一个随机数，让其他对代码了解很多的人猜不到。 ？
最佳答案
如果您的系统可用，您可以使用 random.SystemRandom:
http://docs.python.org/2/library/random.html#random.SystemRandom
Class that uses the
os.urandom()function for generating random numbers from sources provided by the operating system. Not available on all systems. Does not rely on software state and sequences are not reproducible.
http://docs.python.org/2/library/os.html#os.urandom
Return a string of n random bytes suitable for cryptographic use.
This function returns random bytes from an OS-specific randomness source. The returned data should be unpredictable enough for cryptographic applications, though its exact quality depends on the OS implementation.
例如
>>> import sys
>>> import random
>>> rng = random.SystemRandom()
>>> rng.random()
0.7195432667967437
>>> rng.randint(0, sys.maxint)
3614556690529452993
关于python - 使用 Python 创建一个 "uncrackable" "random"数字，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/18047338/