蟒蛇->密码安全程序
我决定编写一个暴力破解函数来向人们展示密码是多么容易受到攻击。现在，我可以向他们展示查找密码所需的列表，但我如何告诉他们花了多长时间？ 这是代码：
#!/usr/bin/python
import itertools
lower_a = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
upper_a = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z']
num = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
alllet = []
alllet = lower_a + upper_a# + num
pwd = raw_input("What pwd?\t\t")
try:
for r in range(1, len(pwd)+1):
for s in itertools.product(alllet, repeat=r):
print ''.join(s)
if ''.join(s) == pwd:
raise NameError()
except KeyboardInterrupt:
print "Hey! You stopped me!"
except NameError:
print "DONE! CRACKED!"
print "\n\nPassword is:\t" + ''.join(s) + "\n\n"
i decided to write a brute force function to show people how vulnerable a password is. right now, i can show them the list it goes through to find the password, but how do i tell them how long it took?
here's the code:
#!/usr/bin/python
import itertools
lower_a = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
upper_a = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z']
num = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
alllet = []
alllet = lower_a + upper_a# + num
pwd = raw_input("What pwd?\t\t")
try:
for r in range(1, len(pwd)+1):
for s in itertools.product(alllet, repeat=r):
print ''.join(s)
if ''.join(s) == pwd:
raise NameError()
except KeyboardInterrupt:
print "Hey! You stopped me!"
except NameError:
print "DONE! CRACKED!"
print "\n\nPassword is:\t" + ''.join(s) + "\n\n"
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评论（3）
首先，密码非常安全，使用暴力攻击需要很多天才能找到密码。
但如果您愿意，可以使用以下内容：
First of all passwords are quite safe and it will take many many days to find one using brute force attack.
But if you'd like you could use following:
您需要的是
timeit模块。使用timeit.Timer，您可以测量代码的速度。这里是很好的在线教程。
希望这有帮助
What you need is the
timeitmodule. Usingtimeit.Timer, you can measure the speed of your code.Here is a good online tutorial.
Hope this helps
时间上有多长？
from time import time在顶部，在程序开始时执行start = time()。在 nameerror 部分执行print time() - start请更具体一点
How long as in time?
from time import timeon top, at the start of the program dostart = time(). at the nameerror part doprint time() - startplease be a bit more specific